Greenheck Fan Fan SFB User Manual
Centrifugal Utility Fans  
Model SFD, SFB and SWB  
Direct and Belt Drive  
November  
2011  
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Models SFD, SFB and SWB  
Utility Fans  
Model Comparison  
Drive  
Type  
Impeller  
Type  
Performance  
Location  
Mounting  
Airflow  
Application  
Model  
SFD  
SFB  
SWB  
2,600 2.5  
$
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   
   
   
   
   
25,200 3.5  
$$  
$$  
   
   
54,000  
5
         
Models SFD and SFB  
Model SWB  
Greenheck models SFD and  
SFB forward-curved utility  
fans have been designed for  
supply, exhaust and return  
air applications requiring low to medium air volumes  
and pressures. You will receive the following benefits  
with these fans:  
Greenheck’s backward-  
inclined utility fans have  
many advantages; higher  
operating efficiencies,  
non-overloading  
horsepower curves  
and higher pressure  
capabilities. You will also receive  
the following benefits with these fans:  
• SFD fans are available in four sizes (6, 7.5, 9 and  
10) with different rpm motors. Capacities range  
from 300 to 2,600 cfm (510 to 4,600 m3/hr) with static  
pressures to 2.5 in. wg (623 Pa).  
• SWB Series 100 in ten sizes (106 through 124)  
with capacities from 70 to 11,000 cfm  
(120 to 18,700 m3/hr) and static pressures to  
3.0 in. wg (747 Pa).  
• SFB fans are available in ten sizes (9 through 30)  
with capacities ranging from 360 to 25,200 cfm  
(610 to 42,800 m3/hr) and static pressures to  
3.5 in. wg (872 Pa).  
• SWB Series 200 in twelve sizes (206 through 224)  
with capacities from 70 to 13,700 cfm  
(120 to 23,300 m3/hr) and static pressures to  
5.0 in. wg (1250 Pa).  
• Greenheck utility fans are designed, engineered  
and tested prior to shipment to provide years of  
smooth, vibration-free operation with minimal  
maintenance.  
• SWB Series 300 in seven sizes (327 through 349)  
with capacities from 4,600 to 54,000 cfm  
(7,700 to 91,700 m3/hr) and static pressures to  
5.0 in. wg (1250 Pa).  
• The fan may be mounted indoors or outdoors.  
• All fan sizes are tested in our AMCA accredited  
laboratory to ensure complete and accurate  
performance ratings. All models are licensed to  
bear the AMCA Air Performance seal. Performance  
as cataloged is assured.  
• Three different series of construction will meet your  
exact needs in the most efficient manner.  
• Greenheck utility fans are designed, engineered and  
tested prior to shipment to provide years of smooth,  
vibration-free operation with minimal maintenance.  
• Fans are tested in our AMCA accredited laboratory  
to ensure complete and accurate performance  
ratings. All models are licensed to bear the AMCA  
Air Performance seal. SWB 300 Series AF fans  
are licensed to bear the AMCA Sound and Air  
Performance seal. Performance as cataloged is  
assured.  
3
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Standard Construction Features  
SWB  
100 200 300  
SFD SFB  
Standard Construction Features  
SFD and SFB fans have forward-curved centrifugal wheels constructed of  
die formed steel with blades securely riveted to a steel backplate and rim.  
Each wheel is statically and dynamically balanced to precise tolerances.  
1
Wheel  
SWB Series 100 and 200 through size 210 have backward-inclined non-  
overloading centrifugal wheels constructed of aluminum. Series 200, sizes  
212 and larger and Series 300 wheels are constructed of steel or aluminum.  
Backward-inclined wheels are made of a heavy-gauge material with single-  
thickness blades securely riveted or welded to a heavy-gauge backplate  
and wheel cone. SWB Series 300 fans are available with aluminum airfoil  
wheels. Each wheel is statically and dynamically balanced to precise  
tolerances.  
All structural steel parts are phosphate treated and coated with  
Greenheck’s Permatector™ for a long lasting finish. Galvanized  
construction remains unpainted.  
2
3
Finish  
—
—
—
—
—
• See housing and drive frame information for specific material and coating.  
SFD and SWB Series 100 housings are constructed of galvanized steel.  
SFB and SWB Series 200 and 300 housings are constructed of steel  
and coated with Permatector™. Both are available in clockwise or  
counterclockwise rotation and are field rotatable to the eight standard  
discharge positions. Housing sides are bonded to the fan scroll with an  
airtight lock seam. Fully welded scrolls are available on SFB and SWB  
Series 200 and 300 models.  
Housing  
Housing supports are constructed of heavy gauge-steel with formed  
flanges for extra strength.  
4
5
6
Housing  
Supports  
Base rails have prepunched mounting holes which allow for easy  
installation.  
Mounting  
Holes  
Series 100 and 200 drive frames are constructed of rugged, welded  
and coated steel members (Series 300 drive frames are constructed of  
reinforced heavy gauge galvanized steel) supporting the shaft and bearings  
to provide rigid reinforcement for the housing. SFD drive frames are  
constructed of galvanized steel, bolted and available in arrangement 4.  
SFB and SWB are arrangement 10.  
Drive  
Frame  
Corrosion-resistant fasteners are used to secure unit base and blower  
scroll assembly.  
7
8
9
Fasteners  
Motor  
Heavy-duty ball bearing motors are carefully matched to the fan load. Open  
drip proof, totally enclosed and explosion resistant enclosures are available.  
Streamlined inlet cone design provides for low turbulence air intake,  
reducing intake losses and sound levels.  
Inlet Cone  
Belt Drive Only Features  
A pivoting motor plate with adjusting screws make belt tensioning a quick  
and easy operation.  
10 Motor  
Plate  
Machined, cast iron pulleys are factory set to the required RPM and are  
adjustable for final system balancing for applications with 10 hp or less  
motors. Sized for a minimum of 150% of driven horsepower.  
11 Drive  
Assembly  
Precision turned, ground and polished solid steel shafts are sized so the  
first critical speed is at least 25% over the maximum operating speed.  
Stainless steel shafts are available on SWB Series 200 and 300 fans.  
12 Fan Shaft  
13 Bearings  
Heavy-duty, self-aligning pillow block ball bearings are selected for a  
minimum L life in excess of 100,000 hours (L average life of 500,000  
10  
50  
hours) at maximum cataloged operating conditions.  
4
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Standard Construction Features  
2
7
3
3
1
13  
12  
8
13  
8
5
4
11  
5
10  
6
SFD  
SFB and SWB 200 Series  
3
3
7
2
7
2
13  
12  
11  
13  
11  
12  
6
8
4
4
8
6
10  
10  
5
5
SWB 100 Series  
SWB 300 Series  
5
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Severe Duty Options  
Protocols designed to protect against  
wind borne debris and severe wind loads:  
High  
Wind and  
Hurricane  
Greenheck worked with Miami-Dade  
County to outline a high velocity hurricane  
zone standard for rooftop fans. The SFD,  
SFB and SWB Series 100 and 200 have  
been certified by an independent third  
party to the ASTM E-330 Static Pressure  
Difference Standard, Florida Building  
Code Test Protocol TAS-201 (large missile  
impact), 202 (static pressure difference)  
and 203 (cyclic pressure) Static Pressure  
Difference. NOA #09-0303.31  
Greenheck is  
leading the high  
wind standard for  
roof top fans and  
ventilators. Forceful  
winds and wind-  
borne debris are  
Miami-Dade  
County Test  
Protocols  
the cause of most hurricane damage. Hurricane  
winds start at 75 mph. At speeds over 150 mph, wind  
can exert a force of 75 pounds per square foot of  
pressure or over 900 pounds on a fan. Forceful winds  
are not the only problem, wind-borne debris can also  
cause detrimental effects to objects and structures.  
High winds and extreme forces are the cause of  
most storm damage. By analyzing calculations,  
computer simulations and actual testing—Greenheck  
developed the High Wind Standard.  
Florida Product Approval ensures that  
products which have been approved can  
be used anywhere in the State of Florida  
which are not governed by the Miami-  
Dade County high wind regulations. More  
information can be found on the Florida  
Building Code website. Florida Product  
Approval FL12680  
Florida  
Product  
Approval  
Protocols designed for seismic standards:  
Seismic  
All Greenheck seismically certified models  
have been tested using the most severe  
seismic event that is found on the Spectral  
Response Map per IBC Figures 1613.5  
(1-2). Because our testing is performed  
under the worst case scenario, using the  
highest mapped seismic load, highest level  
occupancy category, worst case site class,  
and highest code mandated importance  
factor, this allows Greenheck seismically  
certified fans to be used anywhere in the  
United States under any conditions.  
With changes in  
building codes  
and standards,  
more equipment  
is required to  
Seismic  
Testing  
Criteria  
be seismically  
certified in areas  
of the country not  
commonly thought of  
as being in seismically active zones.  
The California Office of Statewide Health  
Planning and Development (OSHPD)  
requires all certified models be shake table  
tested in accordance with ICC ES AC-156,  
in which the fans are physically subjected  
to the same or greater forces than they  
will see during a seismic event. Subjecting  
Greenheck models SWB, SFD and SFB fans  
to this type of testing ensures the fans will  
operate without problems after a seismic  
event. (OSP-0113-10 - SWB Series 100 and  
200 SFB, SFD)  
The International Building Code (IBC) is designed  
to provide model code regulations that safeguard  
public health and safety in all U.S. communities.  
The IBC 2009 is the latest version adopted on state  
or local levels. With this code, the standards are  
intended to improve the performance and design of  
non-structural systems subject to seismic events.  
California  
OSHPD Test  
Protocols  
The State of California, one of the most active  
seismic areas in the United States, has the Office  
of Statewide Health Planning and Development  
(OSHPD). OSHPD regulates the design and  
construction of healthcare facilities to ensure they  
are safe and capable of providing services to the  
public after a seismic event. OSHPD developed  
their own unique certification process to incorporate  
the IBC and ASCE testing standards to ensure  
equipment remains operable after a seismic event.  
All Greenheck seismically certified fan  
models have gone through extensive  
testing procedures. Greenheck models  
Certified  
SWB, SFD and SFB have been certified to  
Independent  
IBC 2006, 2009, ASCE 7-05 and California  
Third-Party  
Testing  
OSHPD standards through both engineering  
calculations and shake table testing by  
independent third party engineering firms.  
(SWB Series 100 and 200, SFB and SFD)  
6
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Temperature Options  
Testing  
Testing for Emergency Smoke Temperature and Time Guidelines  
High temperature testing was conducted at  
Greenheck’s Research and Development facility  
with airstream temperatures in excess of 1000°F  
(538°C). Temperatures were monitored at the  
following critical locations throughout the tests:  
bearings, bearing compartment, motor, motor  
compartment, airstream and fan housing.  
Time  
Code  
Class  
Tested Temperature  
(Hours)  
4.00  
0.25  
5.00  
2.00  
0.50  
1.00  
2.00  
IRI  
SBCCI  
BSI  
500°F (260°C)  
1000°F (538°C)  
302°F (150°C)  
482°F (250°C)  
572°F (300°C)  
572°F (300°C)  
752°F (400°C)  
Class A  
Class B  
Class C  
Class D  
Class E  
Operating Temperatures  
Utility set fans are suitable for applications with  
elevated temperature airstreams. Refer to the  
chart at the right for operation temperature  
guidelines and optional accessories.  
SWB  
SWB  
Series  
200  
SWB  
Series  
300  
Series  
100  
SFD, SFB  
Operating  
Temperatures  
and Construction  
High Temperature/Emergency Smoke Control  
The SWB Series 200 sizes 212 to 224 and  
Series 300 may be equipped for emergency  
smoke removal applications by specifying a  
high temperature option. The table below right  
indicates the construction features included in  
the high temperature options enabling exhaust  
of heat and smoke at 500°F (260°C) for a  
minimum of 4 hours or 1000°F (538°C) for a  
minimum of 15 minutes.  
Painted Aluminum  
Galvanized  
Steel  
SFD SFB  
Steel  
Airstream  
-20° to 200°F  
(-29° to 93°C)  
Standard  
201° to 300°F  
(94° to 149°C)  
Heat Slinger/Shaft Seal  
301° to 400°F  
(149° to 204°C)  
Heat Slinger/Shaft Seal  
The maximum continuous operating temperature on the SWB is 400°F.  
For continuous operating temperatures between 401° and 1000°F use an  
Arrangement 1, 9 or 10, backward-inclined centrifugal fan model BISW.  
High Temperature Option  
SWB Series 200 & 300  
• 500°F (260°C) for a minimum of 4 hours  
High  
Temperature  
Option  
High  
Temperature  
Option with UL  
High Temperature SWB Features  
Series 200 & 300  
• 1000°F (538°C) for a minimum of 15 minutes  
Temperature ratings tested in accordance to UL  
smoke control systems.  
Steel Construction  
Shaft Seal  
Emergency Smoke Control - UL Listed  
SWB Series 200 & 300  
Heat Slinger  
• 500°F (260°C) for a minimum of 4 hours  
Weatherhood  
• 1000°F (538°C) for a minimum of 15 minutes  
UL Label (Power ventilators for smoke  
control systems)  
Spark-Resistant Construction Options  
it passes through the fan housing. Available on all  
SWB sizes with an aluminum wheel and rub ring.  
The following AMCA Standards apply to fan  
applications that may involve the handling of  
potentially explosive or flammable particles,  
fumes or vapors.  
• AMCA Type C - The inlet cone is constructed  
of nonferrous material (aluminum). A nonferrous  
(aluminum) rub ring surrounds the fan shaft where it  
passes through the fan housing.  
• AMCA Type A - All parts in contact with the  
airstream are constructed of nonferrous material  
(aluminum). Model SWB does not meet AMCA  
Type A spark resistant construction because the  
fan shaft is steel.  
The constructions listed minimize the potential of  
ferrous components making contact with each other  
that may produce sparks. However, they do not  
guarantee against the potential of producing sparks.  
The installer must electrically ground all fan and  
system components.  
• AMCA Type B - The fan wheel is constructed  
of nonferrous material (aluminum). A nonferrous  
(aluminum) rub ring surrounds the fan shaft where  
7
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Options and Accessories  
UL/cUL 762 - SWB Series 200 and  
300 models are listed for grease  
removal (UL/cUL 762). The UL/cUL  
762 option includes a weatherhood,  
threaded drain connection and  
access door. Indoor mounting  
requires the fan to have welded  
scroll construction.  
Inlet and Outlet Guards - Constructed  
of expanded metal mounted in a steel  
frame to provide protection for non-ducted  
installations. The guards can be easily  
removed for fan maintenance or inspection.  
Flanged Inlet and Outlet - Flanges are available for  
damper mounting or flanged duct connections. Inlet  
flanges have prepunched mounting holes. Outlet flanges  
are bolted on standard; welded for UL 762 applications  
Weatherhood - Available to completely cover the motor  
and drive compartments; protecting the shaft, bearings,  
motor and drive components from moisture and other  
adverse weather conditions. Weatherhoods are vented to  
provide sufficient motor cooling, designed to meet OSHA  
guidelines and are easily removed for service access.  
Series 300 includes an access door.  
Companion Flange - Connects to the inlet flange and  
then attaches to the ductwork. Recommended for slip-fit  
duct connections.  
Inlet Vane Dampers (SWB only) - External inlet vane  
dampers are available on model SWB fans, sizes 112–  
124 and 212–224. External vanes are mounted on the  
inlet flange. Inlet vane dampers feature  
zinc-plated steel blade axles, stainless  
steel washers and bearings. Vanes can  
be used for either manual or automatic  
operation, with controls furnished  
Drain Connection - Threaded drain connections can  
be provided to drain moisture from the bottom of the  
fan housing.  
Grease Trap (SWB Only) - Aluminum trap is designed  
to collect grease residue and avoid drainage onto roof  
surface. Disposable grease absorbents are available for  
easy maintenance.  
by others. Maximum operating  
temperature is 200°F (93°C).  
Access Doors - Access doors provide access for  
inspection and cleaning. Either bolted or hinged, quick  
opening access doors are available on all models except  
SFD. (Series 100—bolted option only)  
Coatings - A wide variety of coatings and  
colors are available for decorative to acidic applications  
on SFB and SWB Series 200 and 300. All Greenheck  
coatings can be found in the Performance Coatings for  
Commercial and Industrial Fans publication.  
Welded Scroll Construction - Welded scroll  
construction is available on SWB Series 200 and 300.  
Permatector™ is our standard coating. Typically  
used for applications that require corrosion  
resistance in indoor and outdoor environments.  
Aluminum Construction - Aluminum airstream option is  
available on SWB Series 200.  
Hi-Pro™ Polyester is resistant to salt water,  
chemical fumes and moisture in more corrosive  
atmospheres. Typically used for applications  
requiring superior chemical resistance, excellent  
abrasion and outdoor UV protection. This coating  
exceeds protective qualities of Air Dried Heresite  
and Air Dry Phenolic.  
Dampers - Gravity or motorized  
parallel blade backdraft dampers  
feature sturdy galvanized frames with  
prepunched mounting holes, aluminum  
blades with felt edges and balanced  
design for minimal resistance to  
airflow. Backdraft dampers are not  
suitable for downblast or bottom  
Baked Enamel Decorative Coatings are heat  
cured enamels applied as electrostatic powders.  
Customers can choose from 16 standard  
decorative colors or color match any color.  
angular downblast discharge positions. The fan must  
be supplied with a flanged outlet to install a backdraft  
damper directly to the fan. Heavy-duty dampers are  
available for high pressure applications on fans with  
motors equal to or greater than 71⁄2 horsepower.  
Heat Slinger and Shaft Seal (all belt models) - Heat  
slinger is an aluminum cooling disc mounted on  
the fan shaft between the inboard bearing  
and the fan housing. The disc dissipates  
heat conducted along the fan shaft.  
Disconnect Switches - A wide selection  
of NEMA rated switches are available  
for positive electrical shutoff and safety,  
including: dust-tight, rainproof and  
corrosion-resistant.  
The shaft seal with an aluminum rub  
ring is available for applications where  
Wiring Pigtail - Allows direct hookup to the power  
contaminated or high temperature air is be
supply eliminating field wiring to the fan.  
Extended Lube Lines - Lubrication lines with grease  
fittings are extended from shaft bearings to the base  
of the drive frame panel or weatherhood for easy  
bearing lubrication.  
8
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Mounting Options  
Vibration Isolators  
Base-mounted neoprene or spring isolators are available to lessen mechanical vibration and assure quiet  
operation. Free-standing, restrained and housed spring isolators are also available. Isolators are sized to  
match the weight of each fan.  
Free-Standing Open  
Spring Mounts -  
Type 3, 1-inch Deflection  
Free-standing spring isolators  
are unhoused laterally stable  
steel springs. They provide a  
minimum horizontal stiffness  
Rubber Mounts -  
Type 2, ¼-inch and  
½-inch Deflection  
Neoprene mountings  
consist of a steel top plate  
and base plate completely  
embedded in colored (oil-  
resistant) neoprene for easy  
of 0.8 times the rated vertical  
identification of capacity. Neoprene mountings are  
furnished with a tapped hole in the center. This  
enables the equipment to be bolted securely to  
the rubber mount.  
stiffness and provide an additional 50% overload  
capacity. These isolators are equipped with a  
top-mounted adjusting bolt and an acoustical  
non-skid base. Springs are color coded to indicate  
load capacity.  
Restrained Spring  
Mounts -  
Housed Spring Mounts  
Type 4B, 1-inch Deflection  
Housed spring isolators  
consist of steel springs  
assembled into a telescoping  
housing with a top-mounted  
adjusting bolt and an  
acoustical non-skid base.  
Housed spring isolators  
Type 4A, 1-inch Deflection  
Restrained spring isolators  
consist of laterally stable,  
free-standing springs  
assembled into a steel  
housing. These assemblies  
are designed for vertical and horizontal motion  
restraint. Restrained spring isolators can be used  
for blocking during equipment installation and are  
provided with leveling bolts. Springs provide 50%  
overload capacity and are color coded or identified to  
indicate load capacity. Restrained spring mounts are  
recommended for equipment subject to wind loading  
or large torquing forces.  
include resilient inserts to prevent metal-to-metal  
contact and provide snubbing for side loads. Springs  
provide an additional 50% overload capacity and are  
color coded to indicate load capacity.  
Direct Mount - Type A  
No base required. Isolators  
are attached directly to  
Mounting Rails  
with Isolators  
Isolation mounting  
equipment. Direct isolation  
can be used if equipment  
is unitary and rigid without  
the use of additional  
rails are available with  
either rubber mount,  
free-standing open  
or restrained spring  
support. If there is  
any doubt whether or  
not equipment can be  
isolators. The isolators  
are mounted between  
aluminum rails that  
supported directly on isolators,  
use rails, bases or consult the factory.  
run the length of the  
fan base. Isolation rails provide easy  
installation on isolated systems,  
and are ideal for  
Equipment Supports  
Models GESS and GESR equipment  
supports are available for roof  
mounting of utility fans up to size 36.  
Equipment supports are available in  
a number of lengths, widths, heights,  
and can also be built for a pitched roof.  
applications where  
there is a large overhung load.  
Mounting rails are available for fans up  
to size 36.  
9
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Engineering Data  
Selection  
The first consideration in any fan  
Effects of Installation on Performance  
Fan ratings presented in the performance tables and curves  
of this catalog are in accordance with AMCA Standard 210  
“Laboratory Methods of Testing Fans for Aerodynamic  
Performance Rating.” The AMCA test procedure utilizes an open  
inlet and a straight outlet duct to assure maximum static regain.  
selection is the amount of air to be  
moved and the resistance to this air  
movement. Air volume requirements are  
established through specific codes or  
accepted industry standards. Once the  
air volume is known, system resistance  
can be determined by summing up the  
losses through the system components.  
Duct layout, duct size, coils, filters,  
dampers, and fan accessories all affect  
system resistance. ASHRAE Guide and  
Data Books and manufacturer’s data  
on individual system components are  
common sources of information available  
to the system designer.  
Any installation with inlet or discharge configurations that deviate  
from this standard may result in reduced fan performance.  
Restricted or unstable flow at the fan inlet can cause pre rotation  
of incoming air or uneven loading of the fan wheel yielding large  
system losses and increased sound levels. Free discharge or  
turbulent flow in the discharge ductwork will also result in  
system effect losses.  
The examples below show system layouts and inlet and  
discharge configurations which can affect fan performance.  
In most applications, several fans may  
meet the required airflow and system  
resistance conditions. An optimum fan  
selection requires evaluation of alternative  
fan types and fan sizes, as they relate  
to initial cost, operating cost, available  
space, and allowable sound levels. The  
relative importance of these facts varies  
with each system.  
o
7
MAX.  
POOR  
FAIR  
GOOD  
Two types of wheels are available:  
1. Backward-inclined or airfoil wheels  
turn at twice the speed of forward-  
curved fans and feature:  
FAIR  
POOR  
POOR  
• Higher operating efficiencies  
• A non-overloading horsepower  
curve which reaches a peak  
near the middle of the normal  
operation range  
One  
Impeller  
Dia.  
Turning  
Varies  
• Stronger wheel design allowing for  
operation at higher static pressures  
Should be at least  
1/2 Impeller Dia.  
FAIR  
FAIR  
GOOD  
POOR  
2. Forward-curved wheels typically  
have lower performance capabilities  
compared to the backward inclined  
and contain:  
• Overloading type wheel (meaning  
that changes in performance  
can result in significant brake  
horsepower changes)  
POOR  
GOOD  
• Forward-curved wheels have lower  
sound levels  
Comprehensive air performance data for  
these utility fans can be found in the fan  
tables and fan curves section, starting on  
page 15.  
Not Greater than  
60 Including Angle  
o
FAIR  
POOR  
POOR  
10  
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Typical Installations  
General Clean Air or Fume Hood  
(Non–Grease)  
The SFD, SFB and SWB are designed for  
applications ranging from clean air to contaminated  
air. Typical installations are shown below. Installations  
must include a means for inspecting, cleaning and  
servicing the exhaust fan.  
Flex  
Flex  
3 Wheel  
Diameters  
Installation must include a means for inspecting,  
cleaning and servicing the exhaust fan.  
SWB, Commercial Kitchen (Grease)  
Greenheck’s SWB Series 200 and 300 are designed  
to meet restaurant and foodservice applications.  
These fans are UL and cUL Listed for grease  
removal and have been tested under elevated  
temperature conditions.  
Fans selected for grease removal must include a  
weatherhood, access door and 1-inch (25 mm) drain  
connection. For grease applications where the fan is  
mounted indoors, the welded scroll option must be  
selected. An outlet guard is strongly recommended  
when the fan discharge is accessible. When an  
outlet guard is not ordered with the fan, it must be  
provided by the installer. An upblast discharge is  
recommended. No dampers are to be used in  
the system.  
Due to high temperatures and grease-laden  
airstreams in commercial kitchen ventilation, system  
designers must be aware of governing codes and  
guidelines. The National Fire Protection Association  
(NFPA) is the primary source used by many local  
codes for commercial kitchen ventilation systems.  
Local code authorities should be consulted before  
proceeding with any kitchen ventilation project.  
The fan discharge must be a minimum of 40 inches  
(1016 mm) above the roof line and the exhaust  
duct must be fully welded to a minimum distance  
of 18 inches (457 mm) above the roof surface.  
Upblast Discharge  
Optional  
Companion  
Flange  
SWB Series 200 and 300 models  
are listed for grease removal  
(UL/cUL 762).  
File no. MH11745  
**40 in.  
Weatherhood  
(1016 mm)  
3 Wheel  
Diameters  
*18 in.  
(457 mm)  
Duct  
** Per NFPA 96 the fan discharge must be  
a minumum distance of 40 in. (1016 mm)  
above the roof surface.  
*Per NFPA 96 the duct must  
be all welded construction  
to a minumum distance of  
18 in. (457 mm) above the  
roof surface.  
From  
Kitchen  
Hood  
11  
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SFD and SFB Discharge  
Positions and Dimensional Data  
CW BAU  
CCW BAU  
SFD Dimensions  
B
C
C
B
Unit Size  
SFD-6  
A
11⁄16  
(27)  
B
87⁄16  
(214)  
C
59⁄16  
(141)  
D
E
F
G
53⁄16  
(132)  
H
I
J
51⁄4  
(133)  
43⁄4  
(121)  
61⁄2  
(165)  
61⁄16  
(154)  
9
(230)  
7
(178)  
D
H
D
H
11⁄4  
(32)  
101⁄4  
(260)  
613⁄16  
(173)  
513⁄16  
(148)  
73⁄4  
(197)  
71⁄4  
(184)  
61⁄4  
(159)  
92⁄3  
(245)  
81⁄2  
(216)  
63⁄4  
(171)  
A
A
SFD-7.5  
SFD-9  
15⁄16  
(33)  
1113⁄16  
(300)  
73⁄4  
(197)  
61⁄2  
(165)  
815⁄16  
(227)  
85⁄16  
(211)  
73⁄16  
(183)  
107⁄9  
(274)  
91⁄2  
(241)  
71⁄2  
(191)  
CW UB  
CCW UB  
I
G
G
I
115⁄16  
(49)  
14  
(356)  
91⁄4  
(235)  
713⁄16  
(198)  
103⁄4  
(273)  
101⁄16  
(256)  
81⁄2  
(216)  
123⁄4  
(324)  
111⁄2  
(292)  
81⁄2  
(216)  
SFD-10  
J
J
All dimensions in inches (millimeters).  
H
H
SFB Dimensions  
Unit Size  
SFB-9  
A
13⁄8  
(35)  
B
1211⁄16  
(322)  
C
81⁄4  
(210)  
D
E
F
G
75⁄8  
(194)  
H
134⁄5  
(350)  
I
J
CW TAU  
CCW TAU  
7
91⁄2  
(241)  
815⁄16  
(227)  
101⁄4  
(260)  
8
(203)  
E
D
D
E
A
(178)  
A
17⁄16  
141⁄2  
95⁄16  
713⁄16  
103⁄4  
101⁄16  
89⁄16  
151⁄6  
111⁄2  
91⁄4  
B
H
B
SFB-10  
SFB-12  
SFB-15  
SFB-18  
SFB-20  
SFB-22  
SFB-25  
SFB-27  
SFB-30  
(37)  
(368)  
(237)  
(198)  
(273)  
(256)  
(217)  
(385)  
(292)  
(235)  
21⁄4  
(57)  
16  
(406)  
1011⁄16  
(271)  
91⁄16  
(230)  
123⁄8  
(314)  
119⁄16  
(294)  
97⁄8  
(251)  
151⁄6  
(385)  
131⁄4  
(337)  
93⁄4  
(248)  
H
211⁄16  
(68)  
179⁄16  
(446)  
1113⁄16  
(300)  
915⁄16  
(252)  
1311⁄16 1211⁄16  
(348)  
107⁄8  
(276)  
163⁄4  
(426)  
145⁄8  
(371)  
105⁄8  
(270)  
(322)  
CW TH  
CCW TH  
41⁄16  
(103)  
233⁄8  
(594)  
1513⁄16  
(402)  
131⁄4  
(337)  
185⁄16  
(465)  
171⁄8  
(435)  
145⁄8  
(371)  
221⁄3  
(567)  
195⁄8  
(498)  
133⁄4  
(349)  
F
J
F
J
49⁄16  
(116)  
251⁄2  
(648)  
171⁄4  
(438)  
141⁄2  
(368)  
201⁄16  
(510)  
183⁄4  
(476)  
161⁄16  
(408)  
244⁄9  
(621)  
211⁄2  
(546)  
147⁄8  
(378)  
I
I
55⁄16  
(135)  
28  
(711)  
191⁄16  
(484)  
16  
(406)  
221⁄8  
(562)  
203⁄4  
(527)  
1711⁄16  
(449)  
284⁄9  
(723)  
233⁄4  
(603)  
16  
(406)  
H
H
61⁄16  
(154)  
3011⁄16  
(779)  
211⁄16  
(535)  
173⁄4  
(451)  
247⁄16  
(621)  
227⁄8  
(581)  
199⁄16  
(497)  
313⁄5  
(803)  
261⁄4  
(667)  
171⁄2  
(445)  
CCW TAD  
CW TAD  
261⁄2  
(673)  
241⁄2  
(622)  
207⁄8  
(530)  
33  
(838)  
283⁄4  
(730)  
187⁄8  
(479)  
C
B
5
(127)  
34  
(864)  
22  
(559)  
19  
(483)  
C
B
65⁄8  
(168)  
381⁄8  
(968)  
25  
(635)  
211⁄8  
(537)  
29  
(737)  
271⁄4  
(692)  
231⁄4  
(591)  
363⁄5  
(930)  
315⁄8  
(803)  
21  
(533)  
E
E
A
All dimensions in inches (millimeters).  
H
H
CW DB  
CCW DB  
G
I
I
G
F
F
H
H
CW BAD  
CCW BAD  
D
E
E
D
C
C
H
H
A
A
CW BH  
CCW BH  
J
F
F
J
G
H
G
H
Images are viewed from the drive side of fan.  
12  
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SWB Discharge  
Positions and Dimensional Data  
CW BAU  
CCW BAU  
SWB Dimensions  
B
C
C
B
Size  
106  
A
B
C
D
E
F
G
H
I
J
115⁄16  
141⁄8  
91⁄4  
713⁄16  
103⁄4  
101  
⁄
8
85  
⁄
8
151  
⁄
8
111⁄2  
85  
⁄
8
D
H
D
H
(49)  
(359)  
(235)  
(198)  
(273)  
(257)  
(219)  
(384)  
(292)  
(219)  
A
A
115⁄16  
141⁄8  
91  
713⁄16  
103⁄4  
101  
⁄
8
85  
⁄
8
151  
⁄
8
111⁄2  
85  
⁄
8
107  
108  
110  
113  
115  
116  
118  
120  
124  
206  
207  
208  
210  
212  
213  
215  
216  
218  
220  
222  
224  
327  
330  
333  
336  
340  
344  
349  
(49)  
(359)  
(235)  
(198)  
(273)  
(257)  
(219)  
(384)  
(292)  
(219)  
115⁄16  
141⁄8  
91⁄4  
713⁄16  
103⁄4  
101  
⁄
8
85  
⁄
8
151  
⁄
8
111⁄2  
85  
⁄
8
CW UB  
CCW UB  
(49)  
(359)  
(235)  
(198)  
(273)  
(257)  
(219)  
(384)  
(292)  
(219)  
I
G
G
I
115⁄16  
141⁄8  
91⁄4  
713⁄16  
103⁄4  
101  
⁄
8
85  
⁄
8
151  
⁄
8
111⁄2  
85  
⁄
8
(49)  
(359)  
(235)  
(198)  
(273)  
(257)  
(219)  
(384)  
(292)  
(219)  
J
J
211⁄16  
175  
⁄
8
113⁄4  
97  
⁄
8
135  
⁄
8
123⁄4  
107  
⁄8  
165  
⁄
8
145  
⁄
8
105  
⁄8  
(68)  
(448)  
(298)  
(251)  
(346)  
(324)  
(276)  
(422)  
(371)  
(270)  
H
31⁄8  
191⁄2  
131⁄16  
11  
151  
⁄
8
141  
⁄
8
121  
⁄
8
181⁄2  
161⁄4  
115  
⁄8  
H
(79)  
(495)  
(332)  
(279)  
(384)  
(359)  
(308)  
(470)  
(413)  
(295)  
31⁄2  
211⁄4  
145⁄15  
12  
169⁄16  
151⁄2  
131⁄4  
203  
⁄
8
173⁄4  
121⁄2  
CW TAU  
CCW TAU  
(89)  
(540)  
(364)  
(305)  
(406)  
(394)  
(337)  
(518)  
(451)  
(318)  
E
D
D
E
A
A
41⁄16  
233  
⁄
8
1513⁄16  
131⁄4  
185⁄16  
171  
⁄
8
145  
⁄8  
223  
⁄
8
195  
⁄
8
133⁄4  
B
H
(103)  
(594)  
(402)  
(337)  
(465)  
(435)  
(371)  
(568)  
(498)  
(349)  
B
49⁄16  
251⁄2  
171⁄4  
141⁄2  
201⁄16  
183⁄4  
161  
⁄
8
241⁄2  
211⁄2  
147  
⁄8  
(116)  
(648)  
(438)  
(368)  
(510)  
(476)  
(410)  
(622)  
(546)  
(378)  
H
513⁄16  
3015⁄16  
211⁄16  
173⁄4  
247⁄16  
227  
⁄
8
199⁄16  
311⁄2  
261⁄4  
173⁄4  
(402)  
(786)  
(535)  
(451)  
(621)  
(581)  
(497)  
(800)  
(667)  
(451)  
CW TH  
CCW TH  
115⁄16  
141  
⁄
8
91⁄4  
713⁄16  
103⁄4  
101  
⁄
8
85  
⁄
8
151  
⁄
8
111⁄2  
85  
⁄
8
F
J
F
J
(49)  
(359)  
(235)  
(198)  
(273)  
(257)  
(219)  
(384)  
(292)  
(219)  
115⁄16  
141  
⁄
8
91⁄4  
713⁄16  
103⁄4  
101  
⁄
8
85  
⁄
8
151  
⁄
8
111⁄2  
85  
⁄
8
I
I
(49)  
(359)  
(235)  
(198)  
(273)  
(257)  
(219)  
(384)  
(292)  
(219)  
115⁄16  
141  
⁄
8
91⁄4  
713⁄16  
103⁄4  
101  
⁄
8
85  
⁄
8
151  
⁄
8
111⁄2  
85  
⁄
8
(49)  
(359)  
(235)  
(198)  
(273)  
(257)  
(219)  
(384)  
(292)  
(219)  
H
H
115⁄16  
141  
⁄
8
91⁄4  
713⁄16  
103⁄4  
101  
⁄
8
85  
⁄
8
151  
⁄
8
111⁄2  
85  
⁄
8
(49)  
(359)  
(235)  
(198)  
(273)  
(257)  
(219)  
(384)  
(292)  
(219)  
CCW TAD  
CW TAD  
25⁄16  
161  
⁄
8
1011⁄16  
9
123  
⁄
8
115  
⁄
8
915⁄16  
151  
⁄
8
131  
⁄
4
93  
⁄4  
C
B
C
B
(59)  
(410)  
(271)  
(229)  
(314)  
(295)  
(252)  
(384)  
(337)  
(248)  
211⁄16  
175  
⁄
8
113⁄4  
97  
⁄
8
135  
⁄
8
123⁄4  
107  
⁄8  
165  
⁄
8
145  
⁄
8
105  
⁄8  
E
E
(68)  
(448)  
(298)  
(251)  
(346)  
(324)  
(276)  
(422)  
(371)  
(270)  
A
31⁄8  
191⁄2  
131⁄16  
11  
151  
⁄
8
141  
⁄
8
121  
⁄8  
181⁄2  
161⁄4  
115  
⁄8  
H
H
(79)  
(495)  
(332)  
(279)  
(384)  
(359)  
(308)  
(470)  
(413)  
(295)  
31⁄2  
211⁄4  
145⁄15  
12  
169⁄16  
151⁄2  
131⁄4  
203  
⁄
8
173⁄4  
121⁄2  
(89)  
(540)  
(364)  
(305)  
(406)  
(394)  
(337)  
(518)  
(451)  
(318)  
CW DB  
CCW DB  
G
I
I
G
41⁄16  
233  
⁄
8
1513⁄16  
131⁄4  
185⁄16  
171  
⁄
8
145  
⁄8  
223  
⁄
8
195  
⁄
8
133⁄4  
(103)  
(594)  
(402)  
(337)  
(465)  
(435)  
(371)  
(568)  
(498)  
(349)  
F
49⁄16  
251⁄2  
171⁄4  
141⁄2  
201⁄16  
183⁄4  
161  
⁄8  
241⁄2  
211⁄2  
147  
⁄8  
F
(116)  
(648)  
(438)  
(368)  
(510)  
(476)  
(410)  
(622)  
(546)  
(378)  
H
H
53⁄16  
281⁄16  
191⁄16  
16  
221  
⁄
8
205  
⁄
8
1711⁄16  
283  
⁄4  
233  
⁄
4
161  
⁄4  
(132)  
(713)  
(484)  
(406)  
(562)  
(524)  
(449)  
(730)  
(603)  
(413)  
513⁄16  
3015⁄16  
211⁄16  
173⁄4  
247⁄16  
227  
⁄
8
199⁄16  
311⁄2  
261⁄4  
173⁄4  
CW BAD  
CCW BAD  
(402)  
(786)  
(535)  
(451)  
(621)  
(581)  
(497)  
(800)  
(667)  
(451)  
D
E
E
D
51⁄8  
35  
231⁄4  
195⁄8  
267⁄8  
25  
211⁄2  
33  
283⁄4  
211⁄4  
(130)  
(889)  
(591)  
(498)  
(683)  
(635)  
(546)  
(838)  
(730)  
(540)  
C
C
H
53⁄4  
383⁄8  
255⁄8  
215⁄8  
293⁄4  
275⁄8  
233⁄4  
365⁄8  
315⁄8  
231⁄8  
(146)  
(975)  
(651)  
(549)  
(756)  
(702)  
(603)  
(930)  
(803)  
(587)  
H
63⁄4  
421⁄8  
283⁄8  
2313⁄16  
3213⁄16  
309⁄16  
261⁄16  
40  
34 9⁄16  
25  
(171)  
(1070)  
(721)  
(605)  
(833)  
(776)  
(662)  
(1016)  
(878)  
(635)  
A
A
713⁄16  
465⁄16  
315⁄16  
265⁄16  
363⁄16  
333⁄4  
2813⁄16  
441⁄2  
381⁄4  
271⁄4  
CW BH  
CCW BH  
(198)  
(1176)  
(795)  
(668)  
(919)  
(857)  
(732)  
(1130)  
(972)  
(692)  
J
F
F
J
87⁄8  
503⁄4  
347⁄16  
2815⁄16  
3915⁄16  
373⁄16  
3111⁄16  
47  
423⁄16  
295⁄8  
(225)  
(1289)  
(875)  
(735)  
(1014)  
(953)  
(805)  
(1194)  
(1072)  
(752)  
G
H
G
H
101⁄8  
5513⁄16  
38  
3115⁄16  
441⁄16  
411⁄16  
35  
52  
465⁄8  
325⁄16  
(257)  
(1418)  
(965)  
(811)  
(1119)  
(1043)  
(889)  
(1321)  
(1184)  
(821)  
113⁄8  
613⁄16  
4113⁄16  
351⁄8  
487⁄16  
451⁄8  
387⁄16  
57  
515⁄16  
353⁄16  
(289)  
(1554)  
(1062)  
(892)  
(1230)  
(1146)  
(976)  
(1448)  
(1303)  
(894)  
All dimensions in inches (millimeters).  
Images are viewed from the drive side of fan.  
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Fan Identification  
Model Number Code  
The model number code is designed to completely identify the fan. The correct code letters must be  
specified to designate the correct construction. The remainder of the model number is determined by  
the size and performance.  
SW B - 1 10 - AF - 3 - CW - TH  
Fan Size  
Drive  
B - Belt  
Wheel Rotation  
CW - Clockwise  
06 through 49  
D - Direct  
CCW - Counterclockwise  
AF - Airfoil Wheel  
Wheel Type  
SW - Backward-Incline  
SF - Forward-Curved  
(backward inclined  
wheel is standard)  
Discharge Position  
UB - Upblast  
TAU - Top Angular Upblast  
TH - Top Horizontal  
TAD - Top Angular Downblast  
DB - Downblast  
BAD - Backward Angular Downblast  
BH - Backward Horizontal  
BAU - Backward Angular Upblast  
Series (SWB Only)  
100 - Galvanized Construction  
200 - PermatectorTM Coated  
Steel Construction  
300 - Galvanized and Permatector  
Coated Steel Construction  
Motor HP  
4 = 1/4  
3 = 1/3  
5 = 1/2  
7 = 3/4  
10 = 1  
15 = 11⁄2 100 = 10  
20 = 2  
30 = 3  
50 = 5  
150 = 15  
200 = 20  
300 = 30  
75 = 71⁄2 400 = 40  
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SFD Direct Drive  
N
P
B
A
K
C
Motor RPM (Direct Drive only)  
M
A = 1725  
B = 1140  
C = 860  
D = 1550  
E = 1050  
G = 1300  
J
L
International  
(See CAPS for performance)  
H
H
E
E
G
K = 950 RPM J = 1475 RPM  
F
D
DIMENSIONAL DATA  
Model  
SFD  
Max. Motor *Unit  
Frame Size Weight  
A
B
C
D
E
F
G
H
J
K
L
M
N
P
73⁄8  
(187)  
51⁄4  
(133)  
51⁄4  
(133)  
61⁄4  
(159)  
16  
(406)  
181⁄16  
(459)  
205⁄16  
(516)  
11  
(279)  
121⁄4  
(311)  
133⁄4  
(349)  
5/8  
(16)  
1411⁄16  
(373)  
83⁄16  
(208)  
11⁄16  
(27)  
91⁄16  
(230)  
6
(152)  
11⁄4  
(32)  
11⁄4  
(32)  
11⁄4  
(32)  
7/8  
(22)  
11⁄8  
(29)  
13⁄8  
(35)  
111⁄4  
(286)  
1311⁄16  
(348)  
1513⁄16  
(402)  
53⁄16  
(132)  
63⁄8  
(162)  
77⁄16  
(189)  
30  
(14)  
6
7.5  
9
56  
9
(229)  
101⁄8  
(257)  
5/8  
(16)  
145⁄16  
(364)  
81⁄8  
(206)  
11⁄16  
(27)  
95⁄8  
(244)  
8
(203  
40  
(18)  
56  
5/8  
(16)  
177⁄8  
(454)  
103⁄8  
(264)  
11⁄16  
(27)  
103⁄4  
(273)  
10  
(254)  
75  
145T  
(34)  
121⁄8  
(308)  
63⁄4  
(171)  
245⁄16  
(618)  
161⁄4  
(413)  
9/16  
(14)  
193⁄8  
(492)  
113⁄8  
(289)  
11⁄16  
(27)  
123⁄4  
(324)  
12  
(305)  
11⁄4  
(32)  
13⁄8  
(35)  
185⁄8  
(473)  
81⁄2  
(216)  
113  
(51)  
10  
184T  
All dimensions in inches (millimeters) and weight in pounds (kilograms). *Approximate unit weight with largest frame size motor (60 Hz).  
Static Pressure in Inches wg  
Model  
Number  
Motor  
HP  
Fan  
RPM  
0.125  
407  
0.06  
6.7  
0.25  
338  
0.05  
6.0  
0.375  
232  
0.03  
4.7  
0.5  
0.75  
1
1.25  
1.5  
2
2.5  
CFM  
BHP  
Sones  
CFM  
BHP  
Sones  
CFM  
BHP  
Sones  
CFM  
BHP  
Sones  
CFM  
BHP  
Sones  
CFM  
BHP  
Sones  
CFM  
BHP  
Sones  
CFM  
BHP  
SFD-6-6B  
1/6  
1/4  
1/6  
1/2  
1/4  
1/2  
11⁄2  
1/3  
3/4  
3
1140  
1725  
1140  
1725  
860  
667  
628  
585  
541  
0.17  
11.7  
467  
0.10  
8.6  
424  
0.13  
10.5  
SFD-6-4A  
0.24  
13.6  
672  
0.16  
10.6  
1062  
0.59  
20  
0.22  
12.8  
612  
0.14  
9.8  
1028  
0.56  
18.6  
748  
0.15  
7.8  
1097  
0.42  
14.9  
1765  
1.59  
29  
1176  
0.32  
11.3  
1653  
0.82  
18.5  
2603  
2.98  
37  
0.20  
12.3  
549  
0.13  
9.4  
SFD-7.5-6B  
SFD-7.5-5A  
SFD-9-4C  
988  
949  
0.50  
15.8  
487  
0.09  
6.6  
869  
0.46  
14.1  
775  
0.38  
12.7  
636  
0.30  
11.3  
0.53  
16.8  
645  
0.12  
7.0  
839  
0.18  
9.2  
1159  
0.46  
16.1  
1806  
1.64  
31  
1259  
0.36  
12.3  
1713  
0.86  
19.4  
2641  
3.03  
39  
1028  
0.38  
14.3  
1725  
1.54  
28  
1085  
0.29  
10.0  
1592  
0.77  
17.6  
2564  
2.93  
36  
957  
0.34  
13.6  
1683  
1.48  
27  
782  
0.26  
12.3  
1595  
1.36  
25  
SFD-9-5B  
1140  
1725  
860  
1502  
1.24  
22  
1407  
1.13  
21  
1298  
1.01  
21  
989  
0.70  
19.3  
SFD-9-15A  
SFD-10-3C  
SFD-10-7B  
SFD-10-30A  
965  
0.25  
9.2  
Sones  
CFM  
BHP  
Sones  
CFM  
BHP  
1528  
0.72  
17.0  
2525  
2.87  
35  
1378  
0.64  
15.7  
2444  
2.73  
33  
1163  
0.52  
13.9  
2362  
2.60  
31  
1140  
1725  
2275  
2.44  
30  
2179  
2.32  
29  
1942  
2.01  
27  
1621  
1.62  
25  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Performance ratings do not include the effects of appurtenances (accessories). The AMCA  
Certified Ratings Seal applies to air performance only.  
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SFB-9 - Belt Drive  
167⁄8  
(429)  
65⁄8  
(168)  
151⁄2  
(394)  
8
(203)  
2
(51)  
101⁄4  
(260)  
101⁄8  
(257)  
24  
10  
(254)  
197⁄8  
(505)  
(610)  
15⁄8  
(41)  
133⁄4  
(349)  
131⁄2 (343)  
141⁄4 (362)  
115⁄16  
(287)  
20 (508)  
Wheel Diameter = 91⁄2 (241)  
Shaft Diameter = 3/4 (19)  
cfm  
Outlet Area = 0.454 ft2 (0.042 m2)  
^Approximate Unit Weight = 120 lb. (54 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 12  
^Weight shown is largest cataloged Open Drip Proof motor  
Maximum BHP at given RPM = (RPM/1747)3  
(Maximum KW at a given RPM = (RPM/1926)3)  
Maximum RPM = 2000 and Minimum RPM = 450  
Tip Speed (ft/min.) = RPM x 2.49  
(Tip Speed (m/s) = RPM x 0.0126)  
SFB-9  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
644  
0.03  
6.3  
681  
0.05  
6.8  
728  
0.07  
7.5  
780  
0.09  
8.5  
0.5  
0.75  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
360  
792  
891  
0.08  
11.0  
930  
0.11  
10.8  
966  
460 1013  
560 1233  
660 1453  
760 1674  
860 1894  
960 2114  
1060 2334  
1260 2775  
1360 2995  
1460 3215  
1090  
0.15  
10.1  
1129  
0.18  
10.3  
1166  
0.23  
10.7  
1207  
0.28  
11.1  
1256  
0.34  
11.8  
1306  
0.42  
12.6  
1417  
0.61  
14.6  
1482  
0.72  
16.1  
1554  
0.86  
17.6  
1225  
0.19  
10.3  
1264  
0.23  
10.6  
1303  
0.28  
11.0  
1340  
0.34  
11.4  
1378  
0.40  
12.1  
1426  
0.49  
13.2  
1528  
0.69  
15.7  
1583  
0.81  
17.0  
1639  
0.94  
18.3  
1382  
0.28  
11.0  
1422  
0.34  
11.8  
1461  
0.40  
12.6  
1498  
0.47  
13.4  
1534  
0.55  
14.3  
1631  
0.77  
16.8  
1682  
0.89  
18.1  
1736  
1.03  
19.6  
0.14  
10.7  
1013  
0.18  
10.6  
1064  
0.23  
10.9  
1118  
0.28  
11.5  
1174  
0.35  
12.2  
1318  
0.54  
14.3  
1392  
0.66  
15.7  
1468  
0.79  
17.2  
838  
0.13  
9.8  
1528  
0.39  
13.2  
1568  
0.46  
14.0  
1608  
0.54  
14.9  
1644  
0.63  
15.8  
1728  
0.84  
18.1  
1777  
0.98  
19.5  
1827  
1.13  
21  
1628  
0.44  
14.5  
1667  
0.52  
15.4  
1706  
0.61  
16.4  
1745  
0.71  
17.5  
1818  
0.92  
19.5  
1866  
1.06  
21  
909  
1758  
0.58  
17.0  
1798  
0.68  
18.0  
1837  
0.78  
19.1  
1911  
1.01  
21  
1845  
0.64  
18.6  
1883  
0.75  
19.7  
1923  
0.86  
21  
0.17  
11.1  
983  
1965  
0.82  
21  
0.23  
11.1  
1059  
0.30  
12.0  
1216  
0.48  
14.2  
1297  
0.59  
15.7  
1378  
0.71  
17.3  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
1999  
1.10  
23  
1949  
1.14  
22  
1915  
1.22  
22  
1998  
1.31  
24  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
16  
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SFB-10 - Belt Drive  
193⁄8  
(492)  
81⁄2  
91⁄4  
151⁄2  
2
(235)  
(216)  
(394)  
(51)  
111⁄2  
113⁄4  
(292)  
(298)  
265⁄8  
11  
(676)  
(279)  
221⁄4  
21⁄4  
(565)  
151⁄8  
(57)  
(384)  
16 (406)  
167⁄8 (429)  
12 (305)  
203⁄8 (518)  
22 (559)  
Wheel Diameter = 105⁄8 (270)  
Shaft Diameter = 3/4 (19)  
cfm  
Outlet Area = 0.705 ft2 (0.065 m2)  
^Approximate Unit Weight = 130 lb. (59 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 12  
^Weight shown is largest cataloged Open Drip Proof motor  
Maximum BHP at given RPM = (RPM/1310)3  
(Maximum KW at a given RPM = (RPM/1444)3)  
Maximum RPM = 1650 and Minimum RPM = 400  
Tip Speed (ft/min.) = RPM x 2.78  
(Tip Speed (m/s) = RPM x 0.0141)  
SFB-10  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
526  
0.05  
5.6  
575  
0.08  
6.2  
633  
0.13  
7.1  
693  
0.19  
8.3  
0.5  
0.75  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
600  
851  
730  
0.12  
9.1  
790 1121  
980 1390  
1170 1660  
1360 1930  
1550 2199  
1740 2469  
1930 2739  
2120 3008  
2310 3278  
2500 3548  
777  
897  
0.23  
10.3  
944  
0.32  
10.3  
994  
1013  
0.30  
10.2  
1045  
0.38  
10.6  
1092  
0.50  
11.0  
1142  
0.63  
11.6  
1196  
0.79  
12.4  
1256  
0.99  
13.6  
1316  
1.21  
15.0  
1376  
1.46  
16.5  
1441  
1.76  
18.3  
0.18  
10.3  
828  
0.25  
10.7  
887  
0.35  
10.7  
946  
0.46  
11.0  
1009  
0.60  
11.7  
1077  
0.77  
12.7  
1145  
0.97  
13.9  
1214  
1.21  
15.2  
1285  
1.48  
16.9  
1144  
0.45  
10.9  
1181  
0.57  
11.3  
1229  
0.73  
12.0  
1279  
0.89  
13.1  
1332  
1.08  
14.5  
1393  
1.33  
16.0  
1452  
1.59  
17.6  
1512  
1.90  
19.4  
760  
0.27  
9.9  
1263  
0.64  
12.0  
1309  
0.81  
13.0  
1357  
1.00  
14.2  
1407  
1.20  
15.6  
1461  
1.43  
17.1  
1522  
1.72  
18.8  
1581  
2.04  
21  
1349  
0.73  
13.3  
1383  
0.89  
14.2  
1430  
1.09  
15.5  
1479  
1.32  
16.8  
1529  
1.56  
18.3  
1585  
1.84  
20  
1430  
0.81  
14.7  
1456  
0.97  
15.5  
1499  
1.18  
16.8  
1546  
1.43  
18.1  
1596  
1.69  
19.8  
1647  
1.97  
22  
0.42  
10.7  
1049  
0.54  
11.3  
1109  
0.70  
12.1  
1169  
0.87  
13.0  
1232  
1.09  
14.1  
1299  
1.34  
15.6  
1368  
1.63  
17.4  
828  
0.37  
11.1  
898  
0.50  
11.4  
973  
0.66  
12.4  
1050  
0.85  
13.8  
1128  
1.08  
15.3  
1207  
1.36  
17.1  
1531  
1.02  
17.0  
1564  
1.27  
18.1  
1611  
1.53  
19.8  
1603  
1.17  
18.7  
1629  
1.37  
19.9  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
1645  
2.18  
22  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
17  
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SFB-12 - Belt Drive  
213⁄8  
(543)  
93⁄4  
151⁄2  
9
2
(248)  
(229)  
(394)  
(51)  
131⁄4  
135⁄8  
(337)  
(346)  
283⁄8  
13  
221⁄4  
(721)  
(330)  
(565)  
11⁄2  
151⁄8  
(38)  
(384)  
16 (406)  
167⁄8 (429)  
12 (305)  
207⁄8 (530)  
221⁄2 (572)  
Wheel Diameter = 125⁄8 (321)  
Shaft Diameter = 3/4 (19)  
cfm  
Outlet Area = 0.856 ft2 (0.08 m2)  
^Approximate Unit Weight = 147 lb. (67 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 12  
^Weight shown is largest cataloged Open Drip Proof motor  
Maximum BHP at given RPM = (RPM/1111)3  
(Maximum KW at a given RPM = (RPM/1225)3)  
Maximum RPM = 1400 and Minimum RPM = 370  
Tip Speed (ft/min.) = RPM x 3.30  
(Tip Speed (m/s) = RPM x 0.0168)  
SFB-12  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM OV  
0.25  
455  
0.07  
5.7  
493  
0.12  
6.3  
533  
0.18  
7.1  
580  
0.26  
8.2  
0.5  
0.75  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
825  
964  
631  
0.18  
9.3  
1065 1244  
1305 1525  
1545 1805  
1785 2086  
2025 2367  
2265 2647  
2505 2928  
2745 3208  
2985 3489  
3225 3769  
665  
773  
0.33  
10.3  
806  
0.43  
10.6  
844  
0.57  
11.1  
883  
0.74  
11.8  
925  
871  
0.40  
10.5  
897  
0.52  
11.0  
931  
0.67  
11.5  
969  
0.85  
12.2  
1008  
1.06  
12.9  
1048  
1.30  
14.1  
1093  
1.58  
15.6  
1140  
1.90  
17.1  
0.25  
10.2  
703  
0.35  
10.5  
743  
0.47  
10.7  
789  
0.61  
11.4  
837  
0.79  
12.2  
889  
1.00  
13.2  
943  
1.26  
14.4  
1001  
1.56  
15.8  
1062  
1.92  
17.4  
983  
0.62  
11.3  
1010  
0.77  
11.8  
1045  
0.96  
12.7  
1083  
1.19  
13.9  
1122  
1.45  
15.3  
1162  
1.75  
16.7  
1205  
2.08  
18.2  
1061  
0.71  
12.0  
1087  
0.88  
13.0  
1116  
1.07  
14.0  
1152  
1.31  
15.2  
1190  
1.59  
16.6  
1230  
1.91  
18.0  
632  
0.36  
9.6  
1158  
0.99  
14.4  
1185  
1.19  
15.5  
1217  
1.44  
16.6  
1254  
1.73  
17.9  
1292  
2.06  
19.5  
1225  
1.09  
16.0  
1251  
1.32  
17.0  
1278  
1.56  
18.1  
1314  
1.87  
19.5  
686  
0.49  
11.0  
747  
0.67  
11.8  
809  
0.88  
13.0  
873  
1.13  
14.5  
937  
1.43  
16.1  
1002  
1.77  
17.8  
1313  
1.44  
18.6  
1340  
1.70  
19.8  
1370  
2.00  
21  
1373  
1.56  
20  
1399  
1.84  
22  
0.93  
12.6  
971  
1.15  
13.5  
1019  
1.41  
14.6  
1071  
1.72  
16.2  
1124  
2.08  
17.8  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
18  
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SFB-15 - Belt Drive  
Note: New dimensions on this model  
233⁄8  
(594)  
123⁄4  
105⁄8  
213⁄4  
2
(270)  
(324)  
(552)  
(51)  
145⁄8  
16  
(406)  
(371)  
153⁄8  
311⁄4  
(391)  
243⁄4  
(371)  
11⁄2  
(629)  
165⁄8  
(38)  
(422)  
175⁄8 (448)  
187⁄8 (479)  
13 (330)  
30 (762)  
325⁄8 (829)  
Wheel Diameter = 15 (381)  
Shaft Diameter = 1 (25)  
cfm  
Outlet Area = 1.39 ft2 (0.129 m2)  
Mounting Hole Size = 1/2 (13)  
^Approximate Unit Weight = 214 lb. (97 kg)  
Maximum BHP at given RPM = (RPM/720)3  
Maximum KW at a given RPM = (RPM/794) )  
Maximum RPM = 1200 and Minimum RPM = 380  
Tip Speed (ft/min.) = RPM x 3.93  
All dimensions in inches (millimeters)  
For additional discharge positions see page 12  
^Weight shown is largest cataloged Open Drip Proof motor  
3
(
(Tip Speed (m/s) = RPM x 0.0200)  
SFB-15  
Maximum Motor Frame Size = 184T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
395  
0.16  
6.0  
421  
0.23  
7.5  
450  
0.32  
9.9  
481  
0.42  
10.9  
514  
0.56  
11.5  
549  
0.72  
12.7  
585  
0.91  
14.1  
623  
1.14  
15.9  
662  
1.41  
17.8  
701  
1.71  
18.9  
742  
2.06  
20  
0.5  
508  
0.25  
8.1  
529  
0.33  
8.8  
554  
0.44  
9.6  
580  
0.56  
10.6  
608  
0.71  
11.9  
637  
0.89  
13.5  
668  
1.11  
14.9  
701  
1.35  
16.0  
734  
1.63  
17.3  
768  
1.95  
18.6  
804  
2.32  
19.8  
0.75  
1
1.25  
1.5  
1.75  
2
2.5  
2.75  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
1560 1125  
1860 1342  
2160 1558  
2460 1775  
2760 1991  
3060 2208  
3360 2424  
3660 2641  
3960 2857  
4260 3074  
4560 3290  
619  
0.43  
9.4  
638  
716  
0.67  
11.2  
734  
0.83  
12.0  
759  
1.03  
12.8  
784  
1.24  
13.5  
810  
1.49  
14.1  
837  
1.76  
14.7  
865  
2.07  
15.4  
895  
2.44  
16.6  
925  
0.55  
10.3  
663  
0.70  
11.4  
688  
0.87  
12.3  
715  
1.07  
13.2  
742  
1.29  
14.0  
772  
1.56  
14.7  
802  
1.86  
15.9  
834  
2.20  
17.2  
867  
803  
0.97  
13.4  
822  
865  
1.09  
15.2  
884  
941  
1.47  
17.2  
959  
1.74  
17.5  
980  
2.04  
17.9  
1005  
2.39  
18.6  
1030  
2.76  
19.3  
1056  
3.17  
20  
1.17  
14.0  
846  
1.32  
15.6  
903  
1013  
1.90  
19.0  
1031  
2.22  
19.4  
1053  
2.58  
20  
1078  
2.98  
21  
1103  
3.41  
22  
1.41  
14.6  
871  
1.57  
16.0  
928  
1128  
2.58  
22  
1174  
2.75  
24  
1.68  
15.0  
897  
1.87  
16.5  
953  
1147  
2.98  
23  
1192  
3.17  
24  
1.98  
15.4  
924  
2.18  
17.0  
979  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
1166  
3.40  
23  
1191  
3.88  
24  
2.31  
16.3  
951  
2.67  
17.6  
980  
2.54  
17.7  
1005  
2.93  
18.9  
1032  
3.35  
20  
1082  
3.63  
22  
1129  
3.89  
23  
2.59  
18.8  
2.85  
18.4  
3.09  
19.2  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
19  
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SFB-18 - Belt Drive  
307⁄8  
(784)  
133⁄4  
173⁄4  
22  
2
(349)  
(559)  
(451)  
(51)  
195⁄8  
193⁄8  
(498)  
(492)  
191⁄4  
42  
331⁄4  
(489)  
(1067)  
(845)  
11⁄2  
223⁄8  
(38)  
(568)  
233⁄8 (594)  
251⁄8 (638)  
18 (457)  
35 (889)  
367⁄8 (937)  
Wheel Diameter = 181⁄8 (460)  
Shaft Diameter = 1 (25)  
cfm  
Outlet Area = 2.29 ft2 (0.213 m2)  
Mounting Hole Size = 1/2 (13)  
^Approximate Unit Weight = 265 lb. (120 kg)  
Maximum BHP at given RPM = (RPM/614)3  
(Maximum KW at a given RPM = (RPM/677)3)  
Maximum RPM = 1050 and Minimum RPM = 310  
Tip Speed (ft/min.) = RPM x 4.75  
All dimensions in inches (millimeters)  
For additional discharge positions see page 12  
^Weight shown is largest cataloged Open Drip Proof motor  
(Tip Speed (m/s) = RPM x 0.0241)  
SFB-18  
Maximum Motor Frame Size = 184T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
364  
0.29  
8.4  
0.5  
464  
0.44  
9.2  
0.75  
550  
0.60  
10.2  
563  
0.74  
11.2  
578  
0.90  
12.2  
596  
1.10  
13.1  
615  
1.32  
14.0  
638  
1.59  
14.8  
662  
1.90  
15.6  
687  
2.24  
16.9  
714  
2.64  
18.5  
743  
3.09  
20  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
2725 1188  
3150 1374  
3575 1559  
4000 1744  
4425 1930  
4850 2115  
5275 2300  
5700 2486  
6125 2671  
6550 2857  
6975 3042  
388  
0.39  
10.3  
415  
0.52  
11.1  
444  
0.68  
12.0  
473  
0.87  
13.6  
503  
1.09  
15.5  
534  
1.36  
17.7  
566  
1.67  
19.2  
599  
2.03  
20  
481  
0.56  
10.1  
500  
0.70  
11.3  
524  
0.89  
13.1  
548  
1.09  
14.7  
573  
1.34  
15.8  
601  
1.63  
17.1  
630  
1.96  
18.6  
660  
2.34  
20  
635  
0.93  
12.6  
648  
1.11  
13.4  
662  
1.32  
14.0  
680  
1.57  
14.4  
698  
1.85  
14.8  
719  
2.17  
15.6  
743  
2.55  
16.6  
767  
2.96  
18.0  
791  
3.41  
20  
712  
1.33  
15.5  
725  
1.56  
15.8  
738  
1.81  
15.9  
756  
2.12  
16.2  
774  
2.46  
16.7  
793  
2.83  
17.9  
817  
3.28  
19.4  
840  
3.77  
21  
782  
1.80  
17.7  
795  
2.08  
17.8  
809  
2.38  
18.1  
826  
2.75  
18.7  
844  
3.15  
19.5  
863  
3.58  
21  
836  
2.03  
19.5  
848  
2.34  
19.7  
861  
2.68  
20  
898  
2.60  
21  
910  
2.97  
22  
943  
2.86  
23  
957  
3.26  
24  
1001  
3.54  
25  
875  
3.04  
20  
923  
3.35  
22  
970  
3.67  
24  
1013  
3.99  
26  
893  
3.47  
21  
938  
3.78  
23  
982  
4.11  
25  
1026  
4.46  
26  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
911  
3.94  
22  
956  
4.28  
24  
998  
4.61  
26  
1039  
4.95  
27  
631  
2.43  
22  
664  
2.88  
24  
689  
2.76  
21  
720  
3.23  
23  
886  
4.10  
22  
929  
4.43  
24  
974  
4.81  
26  
1016  
5.18  
27  
771  
3.60  
23  
818  
3.93  
22  
865  
4.30  
23  
909  
4.67  
24  
951  
5.02  
26  
992  
5.38  
27  
1034  
5.78  
29  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
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SFB-20 - Belt Drive  
335⁄8  
(854)  
157⁄8  
233⁄4  
147⁄8  
2
(403)  
(603)  
(378)  
(51)  
211⁄2  
22  
(546)  
(559)  
211⁄8  
46  
361⁄8  
(537)  
(1168)  
(918)  
11⁄2  
241⁄2  
(38)  
(622)  
191⁄2 (495)  
255⁄8 (651)  
273⁄8 (695)  
35 (889)  
37 (940)  
cfm  
Wheel Diameter = 20 (508)  
Shaft Diameter = 11⁄4 (32)  
Outlet Area = 2.40 ft2 (0.223 m2)  
Mounting Hole Size = 5/8 (16)  
^Approximate Unit Weight = 405 lb (184 kg)  
Maximum BHP at given RPM = (RPM/485)3  
(Maximum KW at a given RPM = (RPM/535)3)  
Maximum RPM = 950 and Minimum RPM = 270  
Tip Speed (ft/min.) = RPM x 5.24  
All dimensions in inches (millimeters)  
For additional discharge positions see page 12  
^Weight shown is largest cataloged Open Drip Proof motor  
(Tip Speed (m/s) = RPM x 0.0266)  
SFB-20  
Maximum Motor Frame Size = 215T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
320  
0.37  
8.1  
0.5  
402  
0.53  
9.1  
0.75  
1
1.25  
1.5  
1.75  
2
2.5  
2.75  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
3275 1362  
3800 1581  
4325 1799  
4850 2018  
5375 2236  
5900 2455  
6425 2673  
6950 2892  
7475 3110  
8000 3329  
8525 3547  
343  
0.51  
10.3  
369  
0.70  
11.3  
396  
0.92  
12.3  
424  
1.19  
14.0  
454  
1.52  
16.1  
484  
1.90  
18.6  
515  
2.36  
20  
546  
2.88  
22  
578  
3.47  
24  
610  
4.14  
26  
420  
0.70  
10.1  
440  
0.90  
11.5  
462  
1.15  
13.4  
485  
1.45  
15.4  
511  
1.80  
16.8  
537  
2.22  
18.4  
565  
2.69  
19.8  
593  
3.24  
21  
487  
0.90  
11.3  
503  
1.13  
12.6  
521  
1.39  
13.7  
542  
1.71  
14.7  
564  
2.08  
15.5  
587  
2.52  
16.8  
612  
3.02  
18.5  
638  
3.59  
20  
561  
1.36  
13.1  
576  
1.64  
13.9  
594  
1.99  
14.5  
614  
2.38  
15.3  
634  
2.83  
16.1  
657  
3.36  
17.0  
681  
3.95  
19.2  
705  
4.61  
22  
613  
1.61  
14.6  
628  
1.91  
15.0  
642  
2.26  
15.3  
661  
2.68  
15.5  
679  
3.15  
16.5  
700  
3.70  
18.0  
722  
4.30  
19.5  
745  
5.00  
22  
676  
2.19  
16.7  
689  
2.56  
16.9  
704  
2.98  
17.3  
722  
3.49  
18.0  
741  
4.04  
19.3  
761  
4.68  
21  
733  
2.87  
18.6  
747  
3.30  
19.0  
762  
3.81  
19.8  
780  
4.41  
21  
788  
3.64  
21  
801  
4.15  
21  
818  
4.76  
22  
877  
4.89  
24  
890  
5.51  
25  
911  
5.26  
26  
925  
5.92  
26  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
799  
5.05  
22  
836  
5.44  
24  
904  
6.20  
27  
938  
6.61  
28  
622  
3.86  
23  
652  
4.55  
24  
665  
4.24  
22  
692  
4.96  
24  
782  
5.38  
23  
819  
5.79  
24  
854  
6.18  
25  
922  
7.02  
29  
731  
5.37  
24  
769  
5.77  
24  
805  
6.18  
25  
840  
6.59  
26  
875  
7.02  
28  
940  
7.89  
31  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
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SFB-22 - Belt Drive  
363⁄4  
(933)  
171⁄2  
21⁄2  
24  
16  
(406)  
(610)  
(445)  
(64)  
233⁄4  
275⁄8  
(603)  
(702)  
521⁄2  
23  
(584)  
(1334)  
411⁄2  
11⁄2  
(1054)  
283⁄4  
(38)  
(730)  
281⁄4 (718)  
303⁄4 (781)  
20 (508)  
341⁄8 (867)  
395⁄8 (1006)  
Wheel Diameter = 221⁄8 (562)  
Shaft Diameter = 11⁄4 (32)  
cfm  
Outlet Area = 3.23 ft2 (0.300 m2)  
Mounting Hole Size = 5/8 (16)  
^Approximate Unit Weight = 540 lb (245 kg)  
Maximum BHP at given RPM = (RPM/418)3  
(Maximum KW at a given RPM = (RPM/461)3)  
Maximum RPM = 900 and Minimum RPM = 240  
Tip Speed (ft/min.) = RPM x 5.79  
All dimensions in inches (millimeters)  
For additional discharge positions see page 12  
^Weight shown is largest cataloged Open Drip Proof motor  
(Tip Speed (m/s) = RPM x 0.0294)  
SFB-22  
Maximum Motor Frame Size = 215T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
285  
0.44  
8.6  
0.5  
359  
0.64  
10.5  
385  
0.96  
13  
410  
1.37  
15.9  
441  
1.91  
19.3  
475  
2.61  
22  
511  
3.47  
25  
550  
4.53  
28  
590  
5.80  
32  
631  
7.30  
37  
0.75  
419  
0.83  
12.8  
441  
1.20  
15.4  
467  
1.68  
17.9  
491  
2.25  
20  
520  
2.98  
23  
552  
3.87  
26  
587  
4.97  
30  
623  
6.27  
34  
662  
7.83  
38  
701  
9.62  
42  
1
1.25  
1.5  
2
2.5  
3
3.25  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
4000 1240  
4950 1534  
5900 1829  
6850 2123  
7800 2418  
8750 2712  
9700 3007  
10650 3301  
11600 3596  
12550 3890  
13500 4185  
315  
0.71  
11.3  
350  
1.09  
14.1  
388  
1.60  
17.2  
428  
2.25  
21  
470  
3.08  
24  
512  
4.09  
27  
555  
5.33  
30  
599  
6.79  
34  
643  
8.51  
38  
688  
10.5  
42  
491  
1.43  
16.6  
514  
1.96  
19  
540  
2.61  
22  
564  
3.37  
25  
593  
4.30  
28  
624  
5.43  
31  
658  
6.77  
35  
693  
8.34  
38  
535  
1.67  
18  
557  
2.23  
20  
598  
2.52  
22  
582  
2.95  
23  
620  
3.26  
24  
691  
3.92  
26  
755  
4.56  
29  
608  
3.79  
26  
646  
4.17  
28  
713  
4.88  
29  
776  
5.64  
31  
834  
6.38  
34  
861  
6.75  
36  
632  
4.75  
30  
671  
5.21  
30  
739  
6.08  
32  
798  
6.87  
34  
854  
7.71  
37  
881  
8.14  
39  
660  
5.90  
32  
695  
6.39  
34  
764  
7.41  
36  
824  
8.35  
39  
877  
9.24  
41  
691  
7.28  
36  
724  
7.79  
37  
789  
8.90  
40  
850  
10  
43  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
724  
8.88  
39  
755  
9.44  
41  
813  
10.54  
44  
874  
11.82  
47  
672  
9.04  
40  
714  
11.1  
44  
730  
10.17  
42  
759  
10.76  
43  
788  
11.33  
45  
844  
12.56  
48  
898  
13.8  
52  
742  
11.7  
46  
768  
12.3  
47  
794  
12.9  
48  
822  
13.5  
49  
875  
14.8  
53  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
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SFB-25 - Belt Drive  
403⁄8  
(1026)  
171⁄2  
191⁄2  
21⁄2  
25  
(445)  
(495)  
(64)  
(635)  
315⁄8  
261⁄4  
(803)  
(667)  
573⁄4  
257⁄8  
453⁄4  
(1467)  
(657)  
(1162)  
11⁄2  
311⁄2  
(38)  
(800)  
311⁄8 (791)  
335⁄8 (854)  
197⁄8 (505)  
36 (914)  
411⁄2 (1054)  
Wheel Diameter = 25 (635)  
Shaft Diameter = 11⁄2 (38)  
cfm  
Outlet Area = 4.21 ft2(0.391 m2)  
Mounting Hole Size = 5/8 (16)  
^Approximate Unit Weight = 700 lb. (318 kg)  
Maximum BHP at given RPM = (RPM/304)3  
Maximum KW at a given RPM = (RPM/335) )  
Maximum RPM = 750 and Minimum RPM = 190  
Tip Speed (ft/min.) = RPM x 6.54  
All dimensions in inches (millimeters)  
For additional discharge positions see page 12  
^Weight shown is largest cataloged Open Drip Proof motor  
3
(
(Tip Speed (m/s) = RPM x 0.0332)  
SFB-25  
Maximum Motor Frame Size = 284T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
246  
0.74  
8.4  
0.5  
310  
1.03  
10.4  
324  
1.37  
11.9  
338  
1.78  
13.7  
354  
2.29  
15.7  
372  
2.87  
18.0  
391  
3.58  
20  
412  
4.42  
22  
433  
5.37  
24  
455  
6.46  
26  
478  
7.72  
29  
0.75  
363  
1.32  
12.5  
375  
1.72  
14.3  
387  
2.17  
16.2  
401  
2.73  
17.9  
416  
3.36  
19.6  
432  
4.12  
21  
450  
4.99  
23  
468  
5.96  
25  
488  
7.13  
27  
510  
8.43  
30  
1
1.25  
1.5  
2
2.5  
3
3.25  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
412  
1.65  
14.5  
419  
2.05  
15.8  
431  
2.57  
17.3  
444  
3.15  
19.0  
457  
3.86  
21  
471  
4.65  
23  
487  
5.57  
25  
504  
6.62  
27  
521  
7.79  
29  
6000 1425  
6950 1651  
7900 1877  
8850 2103  
9800 2329  
10750 2554  
11700 2780  
12650 3006  
13600 3232  
14550 3457  
15500 3683  
263  
1.02  
10.3  
283  
1.39  
12.1  
304  
1.85  
14.1  
326  
2.40  
16.1  
349  
3.07  
18.4  
373  
3.86  
21  
397  
4.78  
23  
421  
5.84  
25  
445  
7.04  
27  
471  
8.43  
29  
463  
2.42  
17.3  
470  
2.95  
18.6  
482  
3.61  
20  
508  
3.34  
20  
518  
4.03  
22  
585  
4.93  
25  
495  
4.32  
22  
530  
4.83  
23  
593  
5.76  
26  
654  
6.81  
29  
508  
5.19  
24  
542  
5.70  
25  
605  
6.79  
27  
660  
7.78  
30  
716  
8.96  
33  
743  
9.57  
35  
522  
6.16  
26  
556  
6.73  
28  
617  
7.89  
29  
672  
9.05  
32  
722  
10.11  
35  
748  
10.74  
36  
537  
7.22  
28  
569  
7.88  
30  
629  
9.07  
32  
684  
10.39  
34  
734  
11.62  
36  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
553  
8.48  
31  
584  
9.13  
32  
643  
10.51  
34  
696  
11.82  
36  
746  
13.21  
39  
539  
9.09  
31  
570  
9.86  
33  
600  
10.58  
34  
657  
12.04  
36  
709  
13.43  
39  
501  
9.15  
31  
531  
9.88  
33  
559  
10.62  
34  
588  
11.37  
35  
617  
12.18  
36  
671  
13.68  
39  
723  
15.26  
42  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
23  
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SFB-27 - Belt Drive  
44  
(1118)  
19  
21⁄2  
27  
213⁄  
(5438)  
(483)  
(686)  
(64)  
281⁄8  
341⁄2  
(714)  
(876)  
281⁄2  
(724)  
611⁄8  
491⁄8  
(1553)  
(1248)  
35⁄8  
33  
(92)  
(838)  
351⁄8 (892)  
375⁄8 (956)  
221⁄4 (565)  
401⁄2 (1029)  
46 (1168)  
Wheel Diameter = 271⁄2 (699)  
Shaft Diameter = 11⁄2 (38)  
cfm  
Outlet Area = 4.97 ft2 (0.462 m2)  
Mounting Hole Size = 5/8 (16)  
^Approximate Unit Weight = 845 lb. (383 kg)  
Maximum BHP at given RPM = (RPM/285)3  
(Maximum KW at a given RPM = (RPM/314)3)  
Maximum RPM = 700 and Minimum RPM = 200  
Tip Speed (ft/min.) = RPM x 7.20  
All dimensions in inches (millimeters)  
For additional discharge positions see page 12  
^Weight shown is largest cataloged Open Drip Proof motor  
(Tip Speed (m/s) = RPM x 0.0366)  
SFB-27  
Maximum Motor Frame Size = 286T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
245  
1.29  
11.1  
264  
1.75  
13.1  
284  
2.31  
15.1  
305  
3.02  
17.3  
327  
3.85  
19.8  
349  
4.83  
22  
372  
5.97  
25  
395  
7.27  
27  
418  
8.76  
29  
441  
10.40  
32  
0.5  
297  
1.72  
12.5  
310  
2.21  
14.6  
327  
2.84  
16.7  
344  
3.58  
19.2  
363  
4.46  
22  
382  
5.47  
24  
403  
6.64  
26  
424  
8.02  
28  
446  
9.59  
31  
0.75  
345  
2.17  
15.1  
355  
2.71  
17.0  
368  
3.38  
18.9  
381  
4.14  
21  
398  
5.09  
23  
415  
6.16  
25  
434  
7.40  
27  
453  
8.80  
29  
472  
10.37  
32  
492  
12.10  
35  
1
1.25  
427  
3.07  
18.2  
434  
3.73  
19.7  
444  
4.51  
21  
1.5  
462  
3.56  
20  
470  
4.26  
21  
477  
5.05  
23  
2
2.5  
3
3.25  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
388  
2.61  
16.7  
397  
3.23  
18.4  
407  
3.94  
20  
419  
4.78  
22  
432  
5.73  
24  
447  
6.83  
26  
464  
8.14  
28  
481  
9.60  
31  
8600 1729  
9750 1961  
10900 2192  
12050 2423  
13200 2655  
14350 2886  
15500 3117  
16650 3349  
17800 3580  
18950 3811  
20100 4043  
540  
6.24  
26  
454  
5.39  
23  
487  
6.03  
25  
547  
7.28  
27  
603  
8.58  
30  
652  
9.95  
34  
465  
6.41  
25  
497  
7.09  
27  
556  
8.45  
29  
610  
9.86  
32  
660  
11.28  
35  
683  
12.04  
37  
478  
7.57  
28  
508  
8.30  
29  
566  
9.80  
31  
618  
11.22  
33  
668  
12.80  
37  
691  
13.58  
39  
491  
8.84  
30  
521  
9.68  
32  
576  
11.25  
34  
628  
12.88  
36  
676  
14.41  
39  
699  
15.28  
40  
508  
10.38  
33  
535  
11.17  
34  
588  
12.90  
36  
638  
14.64  
39  
685  
16.36  
41  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
499  
11.24  
34  
525  
12.10  
35  
550  
12.92  
36  
601  
14.74  
39  
648  
16.49  
41  
695  
18.42  
44  
468  
11.30  
34  
490  
13.30  
37  
518  
13.10  
37  
543  
14.00  
38  
567  
14.90  
39  
614  
16.70  
41  
661  
18.70  
44  
465  
12.40  
34  
514  
14.20  
39  
538  
15.10  
39  
561  
16.10  
40  
585  
17.10  
41  
629  
18.90  
44  
674  
21.00  
47  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
24  
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SFB-30 - Belt Drive  
483⁄4  
(1238)  
233⁄8  
21⁄2  
21  
27  
(533)  
(686)  
(594)  
(64)  
313⁄8  
367⁄8  
(797)  
(937)  
313⁄4  
(806)  
68  
533⁄4  
(1727)  
11⁄2  
(1365)  
365⁄8  
(38)  
(930)  
383⁄8 (975)  
411⁄8 (1045)  
221⁄2 (572)  
423⁄4 (1086)  
481⁄4 (1226)  
Wheel Diameter = 30 (762)  
Shaft Diameter = 11⁄2 (38)  
cfm  
Outlet Area = 5.72 ft2 (0.531 m2)  
Mounting Hole Size = 5/8 (16)  
^Approximate Unit Weight = 940 lb. (426 kg)  
Maximum BHP at given RPM = (RPM/239)3  
(Maximum KW at a given RPM = (RPM/263)3)  
Maximum RPM = 650 and Minimum RPM = 175  
Tip Speed (ft/min.) = RPM x 7.86  
All dimensions in inches (millimeters)  
For additional discharge positions see page 12  
^Weight shown is largest cataloged Open Drip Proof motor  
(Tip Speed (m/s) = RPM x 0.0399)  
SFB-30  
Maximum Motor Frame Size = 286T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
245  
1.60  
13.0  
267  
2.25  
15.7  
291  
3.10  
18.7  
316  
4.14  
22  
342  
5.42  
25  
369  
6.98  
28  
397  
8.82  
31  
424  
11.00  
35  
452  
13.40  
39  
480  
16.20  
43  
0.5  
293  
2.12  
15.0  
311  
2.85  
17.9  
330  
3.73  
21  
352  
4.85  
23  
375  
6.18  
26  
399  
7.78  
29  
423  
9.65  
33  
448  
11.80  
37  
474  
14.30  
42  
0.75  
332  
2.59  
17.3  
350  
3.44  
19.7  
368  
4.44  
22  
387  
5.60  
25  
406  
6.96  
28  
428  
8.64  
31  
450  
10.57  
35  
474  
12.80  
39  
498  
15.40  
42  
1
1.25  
403  
3.63  
20  
1.5  
434  
4.19  
22  
2
2.5  
3
3.25  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
369  
3.13  
18.6  
383  
3.98  
21  
401  
5.09  
24  
419  
6.37  
27  
437  
7.84  
30  
10000 1749  
11525 2015  
13050 2282  
14575 2549  
16100 2816  
17625 3082  
19150 3349  
20675 3616  
22200 3883  
23725 4149  
25250 4416  
416  
4.60  
22  
446  
5.19  
24  
501  
6.43  
27  
430  
5.69  
25  
459  
6.39  
27  
513  
7.73  
29  
562  
9.15  
32  
606  
10.56  
35  
448  
7.10  
28  
474  
7.78  
30  
526  
9.31  
31  
573  
10.79  
34  
617  
12.37  
38  
638  
13.16  
40  
466  
8.69  
32  
492  
9.49  
33  
539  
11.02  
35  
586  
12.74  
37  
629  
14.38  
40  
649  
15.20  
42  
456  
9.51  
33  
484  
10.49  
35  
510  
11.40  
36  
557  
13.12  
38  
600  
14.86  
41  
642  
16.73  
44  
477  
11.50  
36  
503  
12.50  
38  
529  
13.55  
39  
575  
15.51  
42  
616  
17.32  
45  
499  
13.80  
40  
523  
14.80  
41  
547  
15.90  
43  
593  
18.10  
46  
634  
20.20  
49  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
521  
16.40  
43  
545  
17.50  
45  
566  
18.60  
46  
612  
21.00  
50  
630  
24.20  
55  
649  
27.70  
59  
501  
17.20  
45  
528  
20.50  
49  
523  
18.30  
46  
548  
21.50  
51  
545  
19.40  
47  
567  
20.60  
49  
588  
21.70  
51  
508  
19.40  
46  
569  
22.80  
52  
589  
23.90  
53  
610  
25.20  
55  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
25  
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SWB-106 - Belt Drive  
Series 100  
183⁄4  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
RPM  
HP  
85⁄8  
(219)  
93⁄4  
(476)  
151⁄2  
(394)  
2
Density 0.075 lb/ft3  
8
7
6
5
4
3
2
1
0
(248)  
(51)  
111⁄2  
(292)  
111⁄4  
(286)  
265⁄8  
(676)  
11  
(279)  
221⁄4  
(565)  
11⁄2  
(38)  
151⁄8  
(384)  
16 (406)  
167⁄8 (429)  
12 (305)  
217⁄8 (556)  
231⁄2 (597)  
0
100  
200  
300  
Volume (cfm)  
400  
500  
600  
Wheel Diameter = 111⁄8 (283)  
Shaft Diameter = 3/4 (19)  
0
200  
400  
600  
800  
1000  
Volume (m3/hr)  
Outlet Area = 0.76 ft2 (0.07 m2)  
^Approximate Unit Weight = 135 lb. (61 kg)  
Maximum BHP at a given RPM = (RPM/3706)3  
(Maximum KW at a given RPM = (RPM/4086)3)  
Maximum RPM = 3000  
Tip Speed (ft/min.) = RPM x 2.91  
(Tip Speed (m/s) = RPM x 0.0148)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-106  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
936  
0.5  
1273  
0.04  
6.8  
0.75  
1542  
0.06  
8.0  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
100  
132  
0.02  
5.4  
Sones  
RPM  
BHP  
1023  
0.02  
6.0  
1322  
0.04  
7.1  
1574  
0.07  
8.4  
1799  
0.11  
9.8  
1999  
0.14  
11.5  
2031  
0.16  
11.9  
2088  
0.17  
12.6  
2155  
0.19  
13.2  
2253  
0.22  
14.0  
2379  
0.26  
14.9  
2524  
0.31  
16.2  
2699  
0.37  
17.2  
2883  
0.44  
18.9  
2179  
0.18  
13.1  
2210  
0.20  
13.4  
2257  
0.22  
13.9  
2318  
0.24  
14.5  
2391  
0.27  
15.2  
2500  
0.31  
16.2  
2633  
0.35  
17.4  
2779  
0.42  
18.8  
2956  
0.49  
19.8  
140  
180  
220  
260  
300  
340  
380  
420  
460  
500  
184  
237  
289  
342  
395  
447  
500  
553  
605  
658  
Sones  
RPM  
BHP  
1172  
0.03  
6.6  
1398  
0.05  
7.5  
1632  
0.08  
8.9  
1843  
0.12  
10.2  
1906  
0.13  
10.9  
1993  
0.15  
11.8  
2113  
0.18  
12.8  
2258  
0.22  
13.7  
2434  
0.27  
14.7  
2618  
0.33  
16.1  
2806  
0.40  
17.8  
2376  
0.24  
14.8  
2413  
0.26  
15.2  
2470  
0.29  
15.9  
2537  
0.32  
16.6  
2626  
0.35  
17.5  
2736  
0.40  
18.6  
2879  
0.46  
20  
2531  
0.29  
16.3  
2561  
0.31  
16.7  
2614  
0.34  
17.4  
2676  
0.37  
18.0  
2745  
0.41  
18.7  
2852  
0.45  
19.9  
2973  
0.51  
21  
2676  
0.34  
17.9  
2706  
0.37  
18.3  
2751  
0.39  
18.8  
2808  
0.42  
19.5  
2876  
0.46  
20  
2813  
0.39  
19.4  
2844  
0.42  
19.8  
2880  
0.45  
20  
Sones  
RPM  
BHP  
1356  
0.05  
7.2  
1522  
0.07  
8.2  
1712  
0.10  
9.4  
Sones  
RPM  
BHP  
1550  
0.07  
8.0  
1681  
0.09  
9.0  
1830  
0.12  
10.2  
1976  
0.15  
11.3  
2158  
0.19  
12.5  
2344  
0.23  
13.7  
2535  
0.29  
15.1  
2732  
0.36  
16.9  
2931  
0.44  
18.9  
Sones  
RPM  
BHP  
1749  
0.09  
9.1  
1866  
0.12  
10.1  
2056  
0.15  
11.5  
2253  
0.20  
12.8  
2452  
0.26  
14.2  
2654  
0.32  
16.2  
2858  
0.40  
22  
2936  
0.48  
21  
Sones  
RPM  
BHP  
1952  
0.13  
10.5  
2156  
0.17  
12.2  
2361  
0.23  
14.7  
2567  
0.29  
17.9  
2775  
0.37  
22  
3000  
0.52  
22  
Sones  
RPM  
BHP  
2963  
0.51  
21  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
Performance certified is for installation Type B - free inlet, ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
26  
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SWB-107 - Belt Drive  
Series 100  
183⁄4  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
RPM  
HP  
(476)  
85⁄8  
93⁄4  
8
7
6
5
4
3
2
1
0
151⁄2  
(394)  
Density 0.075 lb/ft3  
2
(248)  
(219)  
(51)  
111⁄2  
111⁄4  
(292)  
(286)  
265⁄8  
(676)  
11  
(279)  
221⁄4  
(565)  
11⁄2  
(38)  
151⁄8  
(384)  
16 (406)  
167⁄8 (429)  
12 (305)  
217⁄8 (556)  
231⁄2 (597)  
0
100  
200  
300  
Volume (cfm)  
400  
500  
600  
700  
800  
Wheel Diameter = 111⁄8 (283)  
Shaft Diameter = 3/4 (19)  
0
200  
400  
600  
800  
1000  
1200  
Volume (m3/hr)  
Outlet Area = 0.76 ft2 (0.07 m2)  
Maximum BHP at a given RPM = (RPM/3706)3  
(Maximum KW at a given RPM = (RPM/3851)3)  
Maximum RPM = 2900  
Tip Speed (ft/min.) = RPM x 2.91  
(Tip Speed (m/s) = RPM x 0.0148)  
^Approximate Unit Weight = 135 lb. (61 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-107  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
891  
0.5  
1198  
0.04  
5.9  
0.75  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
140  
184  
0.02  
4.5  
Sones  
RPM  
BHP  
1008  
0.02  
5.1  
1264  
0.04  
6.2  
1494  
0.07  
7.3  
1695  
0.10  
8.5  
1877  
0.13  
9.8  
200  
260  
320  
380  
440  
500  
560  
620  
680  
740  
263  
342  
421  
500  
579  
658  
737  
816  
895  
974  
Sones  
RPM  
BHP  
1184  
0.04  
6.0  
1374  
0.06  
6.8  
1572  
0.09  
7.7  
1759  
0.12  
8.8  
1931  
0.15  
10.1  
2005  
0.18  
10.6  
2105  
0.21  
11.6  
2238  
0.26  
12.7  
2404  
0.32  
14.2  
2583  
0.39  
16.1  
2767  
0.48  
18.5  
2088  
0.19  
11.3  
2156  
0.22  
11.8  
2244  
0.25  
12.6  
2358  
0.30  
13.7  
2493  
0.36  
14.9  
2669  
0.44  
16.8  
2850  
0.53  
19.1  
2239  
0.23  
12.6  
2299  
0.26  
13.0  
2375  
0.30  
13.7  
2472  
0.34  
14.7  
2601  
0.41  
16.1  
2751  
0.48  
17.5  
2380  
0.27  
13.8  
2432  
0.30  
14.2  
2502  
0.34  
14.9  
2593  
0.39  
15.9  
2705  
0.45  
17.2  
2838  
0.53  
18.4  
2512  
0.32  
15.2  
2559  
0.35  
15.6  
2627  
0.39  
16.3  
2708  
0.44  
17.2  
2805  
0.50  
18.3  
Sones  
RPM  
BHP  
1372  
0.06  
7.3  
1531  
0.08  
7.7  
1686  
0.11  
8.4  
1848  
0.14  
9.5  
2684  
0.40  
17.0  
2745  
0.44  
17.6  
2817  
0.49  
18.5  
Sones  
RPM  
BHP  
1573  
0.09  
8.6  
1713  
0.11  
8.9  
1840  
0.14  
9.7  
1970  
0.18  
10.7  
2129  
0.22  
12.0  
2308  
0.28  
13.5  
2492  
0.35  
15.5  
2680  
0.43  
17.6  
2872  
0.52  
19.9  
Sones  
RPM  
BHP  
1782  
0.12  
10.1  
1994  
0.17  
11.8  
2208  
0.23  
14.1  
2421  
0.30  
16.6  
2636  
0.39  
19.5  
2852  
0.50  
23  
1900  
0.15  
10.6  
2096  
0.20  
12.3  
2302  
0.27  
14.1  
2512  
0.34  
17.0  
2723  
0.44  
22  
2020  
0.19  
11.3  
2205  
0.24  
12.9  
2394  
0.30  
14.7  
2593  
0.38  
16.7  
2799  
0.48  
19.0  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
Performance certified is for installation Type B - free inlet, ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
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SWB-108 - Belt Drive  
Series 100  
183⁄4  
(476)  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
RPM  
HP  
85⁄8  
(219)  
93⁄4  
(248)  
151⁄2  
(394)  
2
(51)  
Density 0.075 lb/ft3  
9
8
7
6
5
4
3
2
1
0
111⁄2  
(292)  
111⁄4  
(286)  
265⁄8  
(676)  
11  
(279)  
221⁄4  
(565)  
11⁄2  
(38)  
151⁄8  
(384)  
12 (305)  
16 (406)  
167⁄8 (429)  
217⁄8 (556)  
231⁄2 (597)  
0
2
4
6
8
10  
12  
14  
Volume (cfm x 100)  
Wheel Diameter = 111⁄8 (283)  
Shaft Diameter = 3/4 (19)  
0
2
4
6
8
10 12 14 16 18 20 22  
Volume (m3/hr x 100)  
Outlet Area = 0.76 ft2 (0.07 m2)  
^Approximate Unit Weight = 135 lb. (61 kg)  
Maximum BHP at a given RPM = (RPM/3233)3  
(Maximum KW at a given RPM = (RPM/3564)3)  
Maximum RPM = 2800  
Tip Speed (ft/min.) = RPM x 2.91  
(Tip Speed (m/s) = RPM x 0.0148)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-108  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
860  
0.5  
1148  
0.04  
6.8  
0.75  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
200  
263  
0.02  
5.5  
Sones  
RPM  
BHP  
982  
1235  
0.05  
7.0  
1443  
0.09  
7.7  
1635  
0.12  
8.7  
1805  
0.16  
9.6  
300  
400  
500  
600  
700  
395  
526  
658  
789  
921  
0.03  
6.6  
Sones  
RPM  
BHP  
1141  
0.04  
7.2  
1357  
0.07  
7.7  
1551  
0.11  
8.2  
1719  
0.15  
9.0  
1872  
0.19  
9.8  
2025  
0.24  
10.7  
2117  
0.28  
11.1  
2234  
0.32  
12.3  
2361  
0.39  
13.9  
2507  
0.46  
15.6  
2662  
0.54  
17.4  
2165  
0.29  
11.5  
2241  
0.33  
12.0  
2356  
0.38  
13.0  
2478  
0.44  
14.6  
2610  
0.52  
16.2  
2763  
0.61  
18.1  
2296  
0.34  
12.4  
2364  
0.39  
12.9  
2471  
0.44  
13.7  
2589  
0.50  
14.8  
2715  
0.59  
17.0  
2419  
0.40  
13.5  
2487  
0.45  
13.9  
2579  
0.50  
14.6  
2695  
0.56  
15.7  
Sones  
RPM  
BHP  
1317  
0.07  
8.0  
1506  
0.10  
8.6  
1675  
0.14  
9.2  
1837  
0.18  
9.8  
1983  
0.23  
10.5  
2105  
0.27  
11.8  
2242  
0.33  
13.3  
2396  
0.40  
15.0  
2561  
0.49  
16.8  
2733  
0.59  
18.9  
2603  
0.51  
14.8  
2681  
0.57  
15.5  
2796  
0.63  
16.6  
Sones  
RPM  
BHP  
1504  
0.09  
9.1  
1673  
0.14  
9.8  
1825  
0.18  
10.5  
1989  
0.23  
12.5  
2162  
0.29  
13.9  
2344  
0.37  
15.5  
2531  
0.45  
17.4  
2723  
0.55  
19.7  
1965  
0.22  
11.2  
2119  
0.28  
12.9  
2282  
0.34  
14.5  
2455  
0.43  
16.2  
2634  
0.53  
18.2  
Sones  
RPM  
BHP  
1699  
0.13  
10.3  
1899  
0.18  
12.1  
2102  
0.24  
13.9  
2308  
0.32  
15.6  
2517  
0.41  
18.7  
2728  
0.52  
23  
1849  
0.18  
11.5  
2035  
0.23  
13.3  
2227  
0.30  
14.7  
2423  
0.38  
16.6  
2623  
0.48  
18.7  
Sones  
RPM  
BHP  
800 1053  
900 1184  
1000 1316  
1100 1447  
1200 1579  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
Performance certified is for installation Type B - free inlet, ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
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SWB-110 - Belt Drive  
Series 100  
183⁄4  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
RPM  
HP  
85⁄8  
(219)  
93⁄4  
(476)  
151⁄2  
(394)  
2
Density 0.075 lb/ft3  
9
8
7
6
5
4
3
2
1
0
(248)  
(51)  
111⁄2  
111⁄4  
(292)  
(286)  
265⁄8  
(676)  
11  
(279)  
221⁄4  
11⁄2  
(38)  
(565)  
151⁄8  
(384)  
12 (305)  
16 (406)  
167⁄8 (429)  
217⁄8 (556)  
231⁄2 (597)  
0
0
2
4
6
8
10  
12  
14  
16  
18  
20  
22  
Volume (cfm X 100)  
Wheel Diameter = 111⁄8 (283)  
Shaft Diameter = 3/4 (19)  
5
10  
15  
20  
25  
30  
35  
Volume (m3/hr x 100)  
Outlet Area = 0.76 ft2 (0.07 m2)  
Maximum BHP at a given RPM = (RPM/2665)3  
(Maximum KW at a given RPM = (RPM/2938)3)  
Maximum RPM = 2665  
Tip Speed (ft/min.) = RPM x 2.91  
(Tip Speed (m/s) = RPM x 0.0148)  
^Approximate Unit Weight = 135 lb. (61 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-110  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
898  
0.5  
1094  
0.07  
8.8  
0.75  
1264  
0.10  
9.0  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
500  
658  
0.04  
8.5  
Sones  
RPM  
BHP  
1040  
0.06  
9.0  
1218  
0.10  
9.2  
1368  
0.13  
9.4  
1508  
0.18  
9.9  
1635  
0.23  
10.5  
1735  
0.27  
11.5  
1859  
0.34  
12.1  
1991  
0.42  
13.9  
2130  
0.51  
16.2  
2274  
0.62  
18.9  
2421  
0.75  
22  
650  
855  
Sones  
RPM  
BHP  
1192  
0.09  
9.7  
1356  
0.13  
9.9  
1496  
0.18  
10.1  
1633  
0.23  
11.6  
1776  
0.30  
13.0  
1924  
0.37  
14.8  
2080  
0.47  
17.0  
2241  
0.59  
19.6  
2404  
0.72  
23  
1621  
0.22  
10.9  
1750  
0.28  
12.1  
1888  
0.36  
13.4  
2031  
0.44  
15.5  
2179  
0.54  
17.8  
2332  
0.67  
21  
1849  
0.33  
11.4  
1961  
0.39  
12.6  
2088  
0.48  
14.4  
2222  
0.58  
17.0  
2362  
0.70  
20  
1955  
0.39  
12.1  
2055  
0.45  
13.1  
2179  
0.54  
15.0  
2309  
0.65  
18.2  
2446  
0.77  
22  
2054  
0.45  
13.3  
2153  
0.52  
14.0  
2267  
0.61  
16.1  
2394  
0.72  
19.3  
2526  
0.85  
23  
800 1053  
950 1250  
1100 1447  
1250 1645  
1400 1842  
1550 2039  
1700 2237  
1850 2434  
2000 2632  
Sones  
RPM  
BHP  
1353  
0.13  
10.6  
1519  
0.18  
12.0  
1688  
0.25  
14.2  
1859  
0.33  
16.0  
2033  
0.43  
18.3  
2211  
0.55  
21  
1501  
0.18  
10.9  
1653  
0.24  
12.7  
1813  
0.31  
14.3  
1976  
0.40  
16.3  
2141  
0.51  
18.8  
2310  
0.63  
22  
2245  
0.59  
15.3  
2349  
0.67  
17.3  
2474  
0.79  
21  
2332  
0.66  
16.7  
2433  
0.75  
18.6  
2551  
0.87  
21  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
2603  
0.93  
22  
Sones  
RPM  
BHP  
2506  
0.83  
23  
2588  
0.91  
23  
Sones  
RPM  
BHP  
2491  
0.81  
24  
2573  
0.89  
24  
2654  
0.98  
24  
Sones  
RPM  
BHP  
2391  
0.69  
24  
2480  
0.78  
25  
2569  
0.88  
25  
2652  
0.97  
26  
Sones  
RPM  
BHP  
2571  
0.86  
27  
2652  
0.96  
27  
Sones  
Performance certified is for installation Type B - free inlet, ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
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SWB-113 - Belt Drive  
Series 100  
Note: New dimensions on this model  
233⁄8  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
RPM  
HP  
105⁄8  
(270)  
(594)  
105⁄8  
213⁄4  
(552)  
Density 0.075 lb/ft3  
9
8
7
6
5
4
3
2
1
0
2
(270)  
(51)  
145⁄8  
141⁄4  
(371)  
(362)  
311⁄4  
(794)  
14  
(356)  
243⁄4  
(629)  
11⁄2  
(38)  
165⁄8  
(422)  
175⁄8 (448)  
187⁄8 (479)  
13 (330)  
271⁄2 (699)  
301⁄8 (765)  
0
5
10  
15  
20  
25  
30  
35  
Volume (cfm X 100)  
Wheel Diameter = 131⁄8 (333)  
Shaft Diameter = 3/4 (19)  
0
10  
20  
30  
40  
50  
Volume (m3/hr x 100)  
Outlet Area = 1.03 ft2 (0.10 m2)  
Maximum BHP at a given RPM = (RPM/2084)3  
(Maximum KW at a given RPM = (RPM/2298)3)  
Maximum RPM = 2385  
Tip Speed (ft/min.) = RPM x 3.53  
(Tip Speed (m/s) = RPM x 0.0179)  
^Approximate Unit Weight = 175 lb. (79 kg)  
All dimension in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-113  
Maximum Motor Frame Size = 184T  
Static Pressure in Inches wg  
CFM OV  
0.25  
767  
0.5  
939  
0.75  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
700  
900  
680  
874  
0.05  
5.4  
0.09  
5.7  
Sones  
RPM  
BHP  
883  
1037  
0.12  
6.9  
1168  
0.17  
8.3  
1291  
0.23  
9.0  
0.08  
6.2  
Sones  
RPM  
BHP  
1009  
0.11  
7.4  
1147  
0.17  
8.5  
1269  
0.22  
9.1  
1378  
0.28  
9.7  
1482  
0.35  
10.2  
1576  
0.43  
11.3  
1680  
0.52  
12.9  
1792  
0.63  
14.7  
1907  
0.76  
16.9  
2029  
0.91  
18.7  
2153  
1.08  
21  
1580  
0.41  
11.0  
1665  
0.50  
12.0  
1766  
0.60  
13.6  
1872  
0.72  
15.5  
1984  
0.86  
17.4  
2101  
1.02  
19.2  
2222  
1.19  
21  
1100 1068  
1300 1262  
1500 1456  
1700 1650  
1900 1845  
2100 2039  
2300 2233  
2500 2427  
2700 2621  
Sones  
RPM  
BHP  
1144  
0.16  
8.8  
1266  
0.22  
9.5  
1378  
0.29  
10.1  
1494  
0.37  
11.5  
1617  
0.46  
13.3  
1745  
0.57  
15.3  
1878  
0.70  
17.8  
2014  
0.85  
19.7  
2153  
1.03  
21  
1480  
0.36  
10.7  
1591  
0.44  
12.2  
1706  
0.55  
13.9  
1828  
0.66  
16.1  
1953  
0.80  
18.2  
2085  
0.96  
20  
1753  
0.58  
12.8  
1846  
0.68  
14.3  
1948  
0.81  
16.2  
2057  
0.96  
17.9  
2170  
1.13  
19.8  
2288  
1.31  
22  
1837  
0.65  
13.8  
1922  
0.77  
15.2  
2023  
0.91  
16.7  
2126  
1.06  
18.4  
2238  
1.24  
20  
1916  
0.73  
15.1  
1999  
0.85  
15.8  
2093  
1.00  
17.2  
2194  
1.16  
18.9  
2302  
1.35  
21  
Sones  
RPM  
BHP  
1283  
0.22  
10.0  
1424  
0.30  
11.9  
1569  
0.39  
13.8  
1714  
0.51  
15.9  
1860  
0.64  
18.1  
2007  
0.80  
20  
1391  
0.29  
10.8  
1524  
0.37  
12.7  
1659  
0.48  
14.6  
1799  
0.60  
16.8  
1940  
0.75  
19.0  
2083  
0.92  
21  
2073  
0.94  
16.4  
2161  
1.09  
17.8  
2261  
1.27  
19.6  
2364  
1.46  
22  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
2352  
1.43  
23  
Sones  
RPM  
BHP  
2219  
1.15  
22  
2284  
1.27  
23  
2347  
1.40  
24  
Sones  
RPM  
BHP  
2154  
0.99  
22  
2228  
1.12  
23  
2293  
1.24  
24  
2356  
1.36  
24  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
30  
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SWB-115 - Belt Drive  
Series 100  
Note: New dimensions on this model  
253⁄4  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
RPM  
HP  
(654)  
115⁄8  
211⁄2  
115⁄8  
(295)  
Density 0.075 lb/ft3  
9
8
7
6
5
4
3
2
1
0
2
(295)  
(546)  
(51)  
153⁄4  
(400)  
161⁄4  
(413)  
157⁄8  
(403)  
343⁄4  
(883)  
271⁄2  
(699)  
11⁄2  
(38)  
181⁄2  
(470)  
20 (508)  
211⁄8 (537)  
15 (381)  
271⁄8 (689)  
311⁄4 (794)  
0
5
10  
15  
20  
25  
30  
35  
60  
40  
45  
Volume (cfm X 100)  
Wheel Diameter = 149⁄16 (370)  
Shaft Diameter = 3/4 (19)  
0
10  
20  
30  
40  
50  
70  
Volume (m3/hr x 100)  
Outlet Area = 1.25 ft2 (0.12 m2)  
Maximum BHP at a given RPM = (RPM/1737)3  
(Maximum KW at a given RPM = (RPM/1915)3)  
Maximum RPM = 2187  
Tip Speed (ft/min.) = RPM x 3.93  
(Tip Speed (m/s) = RPM x 0.0200)  
^Approximate Unit Weight = 225 lb. (102 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-115  
Maximum Motor Frame Size = 184T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
737  
0.5  
879  
0.75  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
1000 800  
1250 1000  
1500 1200  
1750 1400  
2000 1600  
2250 1800  
2500 2000  
2750 2200  
3000 2400  
3250 2600  
3500 2800  
0.08  
6.2  
0.13  
6.7  
Sones  
RPM  
BHP  
843  
976  
1086  
0.24  
8.4  
1186  
0.31  
8.9  
0.11  
6.9  
0.18  
7.8  
Sones  
RPM  
BHP  
955  
1078  
0.24  
9.1  
1183  
0.32  
9.6  
1276  
0.39  
10.1  
1373  
0.49  
11.4  
1474  
0.61  
13.0  
1578  
0.75  
14.7  
1685  
0.91  
16.7  
1794  
1.09  
18.8  
1911  
1.31  
21  
1360  
0.47  
10.6  
1455  
0.58  
12.0  
1552  
0.71  
13.6  
1654  
0.86  
15.4  
1758  
1.03  
17.5  
1864  
1.23  
19.4  
1973  
1.45  
22  
1445  
0.56  
11.3  
1530  
0.67  
12.5  
1625  
0.82  
14.1  
1724  
0.98  
16.0  
1826  
1.16  
18.0  
1931  
1.37  
20  
0.16  
8.2  
Sones  
RPM  
BHP  
1075  
0.23  
9.6  
1184  
0.31  
10.3  
1294  
0.41  
11.7  
1412  
0.53  
13.4  
1533  
0.67  
15.4  
1654  
0.84  
17.6  
1776  
1.04  
19.9  
1899  
1.26  
22  
1284  
0.40  
10.9  
1389  
0.51  
12.4  
1496  
0.63  
14.0  
1609  
0.78  
16.0  
1727  
0.97  
18.3  
1847  
1.18  
20  
1600  
0.77  
13.1  
1695  
0.92  
14.7  
1791  
1.09  
16.6  
1891  
1.29  
18.7  
1993  
1.51  
21  
1673  
0.87  
14.1  
1759  
1.02  
15.3  
1854  
1.21  
17.3  
1952  
1.42  
19.4  
2053  
1.65  
22  
1746  
0.97  
15.1  
1821  
1.13  
16.1  
1915  
1.32  
18.0  
2010  
1.55  
20  
Sones  
RPM  
BHP  
1196  
0.32  
11.1  
1319  
0.42  
12.8  
1444  
0.55  
14.7  
1570  
0.71  
16.7  
1698  
0.89  
19.0  
1827  
1.11  
21  
1883  
1.24  
17.1  
1972  
1.44  
18.8  
2067  
1.67  
21  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
2109  
1.79  
22  
2164  
1.93  
23  
Sones  
RPM  
BHP  
2037  
1.60  
22  
2098  
1.76  
23  
2156  
1.91  
24  
Sones  
RPM  
BHP  
1968  
1.42  
23  
2030  
1.57  
23  
2088  
1.71  
24  
2146  
1.87  
24  
Sones  
RPM  
BHP  
1956  
1.35  
24  
2024  
1.52  
25  
2090  
1.69  
25  
2150  
1.86  
26  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
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SWB-116 - Belt Drive  
Series 100  
Note: New dimensions on this model  
28  
5
4
3
2
1
0
RPM  
HP  
12  
10  
8
121⁄2  
(318)  
211⁄2  
(711)  
123⁄4  
(324)  
Density 0.075 lb/ft3  
2
(546)  
(51)  
1
173⁄4  
(451)  
171⁄2  
(445)  
¾
381⁄8  
(968)  
171⁄2  
(445)  
½
¼
30  
6
11⁄2  
(38)  
(762)  
203⁄8  
(518)  
4
2
213⁄8 (543)  
227⁄8 (581)  
16 (406)  
301⁄4 (769)  
323⁄8 (823)  
0
0
5
10  
15  
20  
25  
30  
35  
40  
45  
50  
55  
Volume (cfm X 100)  
Wheel Diameter = 163⁄4 (425)  
Shaft Diameter = 1 (25)  
0
20  
40  
60  
80  
Volume (m3/hr x 100)  
Outlet Area = 1.52 ft2 (0.14 m2)  
^Approximate Unit Weight = 241 lb. (109 kg)  
Maximum BHP at a given RPM = (RPM/1403)3  
(Maximum KW at a given RPM = (RPM/1547)3)  
Maximum RPM = 2023  
Tip Speed (ft/min.) = RPM x 4.32  
(Tip Speed (m/s) = RPM x 0.0219)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-116  
Maximum Motor Frame Size = 184T  
Static Pressure in Inches wg  
CFM OV  
0.5  
750  
0.75  
1
1.25  
1.5  
2
2.5  
2.75  
3
3.5  
RPM  
BHP  
1200 789  
1560 1026  
1920 1263  
2280 1500  
2640 1737  
3000 1974  
3360 2211  
3720 2447  
4080 2684  
4440 2921  
4800 3158  
0.15  
5.8  
Sones  
RPM  
BHP  
846  
943  
0.30  
7.8  
1026  
0.38  
8.7  
0.22  
7.1  
Sones  
RPM  
BHP  
949  
1039  
0.40  
9.6  
1120  
0.50  
10.7  
1216  
0.65  
12.5  
1320  
0.82  
14.1  
1429  
1.03  
16.1  
1545  
1.29  
18.4  
1667  
1.60  
21  
1192  
0.60  
11.5  
1287  
0.76  
12.9  
1385  
0.96  
14.6  
1490  
1.18  
16.6  
1599  
1.45  
18.9  
1716  
1.76  
22  
1259  
0.71  
12.0  
1352  
0.88  
13.3  
1448  
1.09  
15.1  
1548  
1.34  
17.1  
1654  
1.62  
19.6  
1764  
1.94  
23  
0.31  
8.8  
Sones  
RPM  
BHP  
1061  
0.42  
10.9  
1182  
0.57  
13.5  
1306  
0.76  
15.4  
1432  
0.99  
17.6  
1560  
1.27  
20  
1141  
0.53  
11.8  
1250  
0.69  
13.8  
1369  
0.89  
15.8  
1491  
1.14  
18.0  
1615  
1.43  
21  
1470  
1.12  
14.4  
1564  
1.36  
15.9  
1659  
1.64  
18.6  
1758  
1.96  
21  
1576  
1.38  
16.4  
1666  
1.64  
17.4  
1761  
1.95  
19.9  
1857  
2.30  
23  
Sones  
RPM  
BHP  
1715  
1.79  
18.4  
1808  
2.11  
21  
1762  
1.93  
19.5  
1853  
2.26  
21  
1851  
2.23  
22  
Sones  
RPM  
BHP  
1940  
2.59  
22  
Sones  
RPM  
BHP  
1903  
2.47  
23  
1948  
2.64  
23  
Sones  
RPM  
BHP  
1863  
2.32  
24  
1955  
2.70  
25  
2001  
2.89  
26  
Sones  
RPM  
BHP  
1690  
1.60  
23  
1742  
1.78  
24  
1790  
1.96  
25  
1837  
2.14  
25  
1881  
2.32  
26  
1971  
2.72  
27  
Sones  
RPM  
BHP  
1821  
1.99  
27  
1869  
2.18  
28  
1916  
2.38  
28  
1960  
2.58  
29  
2002  
2.77  
30  
Sones  
RPM  
BHP  
1953  
2.44  
32  
1999  
2.65  
32  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
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SWB-118 - Belt Drive  
Series 100  
307⁄8  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
RPM  
HP  
(784)  
133⁄4  
(350)  
141⁄8  
22  
(559)  
2
9
8
7
6
5
4
3
2
1
0
Density 0.075 lb/ft3  
(359)  
(51)  
195⁄8  
193⁄8  
(498)  
(492)  
42  
(1067)  
191⁄4  
(489)  
331⁄4  
(845)  
11⁄2  
(38)  
223⁄8  
(568)  
177⁄8 (454)  
233⁄8 (594)  
25 (635)  
321⁄4 (817)  
34 (864)  
0
13  
26  
39  
52  
65  
Volume (cfm X 100)  
Wheel Diameter = 181⁄2 (470)  
Shaft Diameter = 1 (25)  
0
20  
40  
60  
80  
100  
Volume (m3/hr x 100)  
Outlet Area = 1.87 ft2 (0.17 m2)  
^Approximate Unit Weight = 312 lb. (142 kg)  
Maximum BHP at a given RPM = (RPM/1150)3  
(Maximum KW at a given RPM = (RPM/1268)3)  
Maximum RPM = 1660  
Tip Speed (ft/min.) = RPM x 4.78  
(Tip Speed (m/s) = RPM x 0.0243)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-118  
Maximum Motor Frame Size = 213T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
545  
0.11  
5.6  
0.5  
667  
0.19  
6.6  
0.75  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
1500 802  
1900 1016  
2300 1230  
2700 1444  
3100 1658  
3500 1872  
3900 2086  
4300 2299  
4700 2513  
5100 2727  
5500 2941  
Sones  
RPM  
BHP  
628  
0.16  
6.5  
728  
0.25  
7.2  
826  
0.36  
7.8  
Sones  
RPM  
BHP  
717  
0.24  
7.7  
806  
0.34  
8.2  
887  
969  
0.58  
9.9  
1044  
0.71  
11.2  
1102  
0.86  
12.5  
1169  
1.04  
13.9  
1247  
1.27  
15.8  
1329  
1.54  
18.7  
1417  
1.85  
20  
0.45  
8.9  
Sones  
RPM  
BHP  
808  
0.34  
9.1  
892  
0.46  
9.8  
964  
1032  
0.71  
11.4  
1109  
0.89  
13.2  
1191  
1.11  
15.2  
1279  
1.36  
17.6  
1367  
1.65  
19.8  
1457  
1.98  
21  
1170  
1.01  
13.3  
1229  
1.20  
14.8  
1301  
1.43  
17.0  
1379  
1.72  
18.4  
1462  
2.04  
20  
1233  
1.17  
14.3  
1291  
1.37  
16.3  
1352  
1.60  
17.9  
1428  
1.90  
18.5  
1506  
2.24  
20  
0.59  
10.5  
1047  
0.75  
12.5  
1135  
0.95  
14.6  
1223  
1.18  
16.9  
1314  
1.45  
19.7  
1405  
1.77  
21  
Sones  
RPM  
BHP  
902  
0.46  
10.9  
997  
0.62  
13.1  
1095  
0.82  
15.5  
1193  
1.06  
17.6  
1291  
1.34  
20  
980  
0.61  
11.7  
1070  
0.78  
14.1  
1162  
1.00  
16.3  
1256  
1.25  
18.6  
1351  
1.55  
21  
1349  
1.55  
17.0  
1407  
1.79  
17.5  
1475  
2.08  
18.8  
1552  
2.44  
20  
1403  
1.73  
16.8  
1461  
1.99  
17.8  
1521  
2.27  
19.2  
1596  
2.64  
21  
Sones  
RPM  
BHP  
1513  
2.19  
18.4  
1572  
2.49  
19.7  
1638  
2.85  
21  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
1505  
2.20  
22  
1550  
2.42  
22  
1591  
2.63  
23  
1631  
2.85  
23  
Sones  
RPM  
BHP  
1391  
1.67  
22  
1447  
1.90  
23  
1499  
2.13  
23  
1548  
2.37  
23  
1594  
2.60  
24  
1638  
2.84  
25  
Sones  
RPM  
BHP  
1491  
2.05  
24  
1544  
2.31  
25  
1593  
2.55  
25  
1640  
2.80  
25  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
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SWB-120 - Belt Drive  
Series 100  
335⁄8  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
RPM  
HP  
147⁄8  
(854)  
233⁄4  
153⁄8  
8
7
6
5
4
3
2
1
0
Density 0.075 lb/ft3  
2
(378)  
(603)  
(391)  
(51)  
211⁄8  
(537)  
211⁄2  
(546)  
211⁄8  
(537)  
46  
361⁄8  
(918)  
(1168)  
11⁄2  
(38)  
241⁄2  
(622)  
193⁄8 (492)  
255⁄8 (651)  
273⁄8 (695)  
35 (889)  
37 (940)  
0
1
2
3
4
5
6
7
8
Volume (cfm X 1000)  
Wheel Diameter = 213⁄8 (543)  
Shaft Diameter = 1 (25)  
0
2
4
6
8
10  
12  
Volume (m3/hr x 1000)  
Outlet Area = 2.23 ft2 (0.21 m2)  
^Approximate Unit Weight = 374 lb. (170 kg)  
Maximum BHP at a given RPM = (RPM/943)3  
(Maximum KW at a given RPM = (RPM/1040)3)  
Maximum RPM = 1357  
Tip Speed (ft/min.) = RPM x 5.23  
(Tip Speed (m/s) = RPM x 0.0266)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-120  
Maximum Motor Frame Size = 215T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
471  
0.12  
6.5  
0.5  
591  
0.22  
6.5  
0.75  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
1800 807  
2250 1009  
2700 1211  
3150 1413  
3600 1614  
4050 1816  
4500 2018  
4950 2220  
5400 2422  
5850 2623  
6300 2825  
Sones  
RPM  
BHP  
528  
0.17  
6.6  
633  
0.29  
6.7  
728  
0.42  
8.0  
811  
0.56  
9.4  
Sones  
RPM  
BHP  
593  
0.25  
7.1  
686  
0.38  
7.3  
770  
850  
923  
0.84  
11.2  
962  
989  
1.01  
12.3  
1028  
1.18  
12.4  
1068  
1.37  
13.0  
1113  
1.59  
15.0  
1166  
1.85  
16.5  
1222  
2.15  
17.0  
1280  
2.48  
18.0  
1342  
2.87  
20  
0.52  
8.1  
0.68  
9.5  
Sones  
RPM  
BHP  
658  
0.34  
7.9  
743  
0.49  
8.3  
820  
892  
1088  
1.37  
13.5  
1128  
1.58  
13.7  
1169  
1.82  
15.1  
1217  
2.09  
16.4  
1270  
2.40  
17.2  
1327  
2.75  
18.7  
1145  
1.57  
14.6  
1184  
1.80  
14.9  
1223  
2.05  
15.5  
1267  
2.33  
16.7  
1316  
2.65  
18.1  
0.64  
9.1  
0.81  
10.2  
943  
0.99  
11.2  
1006  
1.17  
12.4  
1057  
1.38  
14.3  
1113  
1.62  
16.2  
1171  
1.90  
17.2  
1234  
2.23  
18.1  
1298  
2.60  
19.7  
Sones  
RPM  
BHP  
723  
0.45  
9.0  
807  
0.62  
10.0  
873  
0.79  
12.3  
937  
0.98  
14.4  
1002  
1.20  
15.9  
1069  
1.45  
17.8  
1137  
1.74  
19.8  
1207  
2.06  
21  
877  
1237  
2.02  
16.4  
1276  
2.29  
16.6  
1316  
2.58  
17.8  
1287  
2.24  
18.0  
1326  
2.53  
18.2  
0.79  
10.9  
937  
0.98  
11.6  
999  
Sones  
RPM  
BHP  
791  
0.59  
10.7  
861  
0.75  
13.1  
931  
0.94  
15.9  
1003  
1.16  
17.6  
1076  
1.42  
19.3  
1151  
1.73  
21  
0.97  
13.0  
1001  
1.19  
15.1  
1067  
1.45  
16.8  
1132  
1.73  
18.5  
1196  
2.04  
19.3  
1262  
2.40  
20  
1.17  
13.4  
1057  
1.40  
15.3  
1121  
1.67  
17.4  
1186  
1.98  
18.5  
1252  
2.34  
19.3  
1316  
2.71  
21  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
34  
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SWB-124 - Belt Drive  
Series 100  
405⁄8  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
RPM  
HP  
(1032)  
173⁄4  
25  
21⁄2  
19  
9
8
7
6
5
4
3
2
1
0
Density 0.075 lb/ft3  
(451)  
(483)  
(635)  
(64)  
261⁄4  
26  
(661)  
(667)  
573⁄4  
(1467)  
257⁄8  
(657)  
453⁄4  
(1162)  
11⁄2  
(38)  
311⁄2  
(800)  
311⁄8 (791)  
335⁄8 (854)  
193⁄4 (502)  
36 (914)  
411⁄2 (1054)  
0
2
4
6
8
10  
12  
Volume (cfm X 1000)  
Wheel Diameter = 241⁄2 (622)  
Shaft Diameter = 1 (25)  
0
2
4
6
8
10  
12  
14  
16  
18  
20  
Volume (m3/hr x 1000)  
Outlet Area = 3.40 ft2 (0.32 m2)  
^Approximate Unit Weight = 546 lb. (248 kg)  
Maximum BHP at a given RPM = (RPM/713)3  
(Maximum KW at a given RPM = (RPM/786)3)  
Maximum RPM = 1225  
Tip Speed (ft/min.) = RPM x 6.41  
(Tip Speed (m/s) = RPM x 0.0326)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-124  
Maximum Motor Frame Size = 256T  
Static Pressure in Inches wg  
CFM  
OV  
0.25  
413  
0.19  
4.9  
0.5  
0.75  
1
1.25  
1.5  
1.75  
2
2.25  
2.5  
RPM  
BHP  
2800 824  
3400 1000  
4000 1176  
4600 1353  
5200 1529  
5800 1706  
6400 1882  
7000 2059  
7600 2235  
8200 2412  
8800 2588  
Sones  
RPM  
BHP  
464  
0.27  
6.0  
541  
0.43  
6.9  
Sones  
RPM  
BHP  
517  
0.38  
7.5  
588  
0.56  
8.3  
651  
0.74  
9.2  
Sones  
RPM  
BHP  
572  
0.51  
9.1  
638  
0.71  
9.8  
696  
0.92  
10.7  
744  
1.13  
12.7  
795  
1.39  
15.5  
849  
1.68  
16.8  
903  
2.01  
18.2  
958  
2.38  
19.9  
1013  
2.80  
22  
751  
1.14  
11.8  
795  
1.37  
14.0  
843  
1.64  
15.6  
893  
1.96  
17.2  
945  
2.32  
19.2  
999  
2.74  
21  
Sones  
RPM  
BHP  
629  
0.66  
11.0  
687  
0.86  
12.9  
746  
1.09  
14.7  
806  
1.37  
16.5  
867  
1.69  
18.0  
927  
2.07  
20  
691  
0.91  
11.6  
745  
1.13  
13.8  
800  
1.38  
16.4  
856  
1.68  
17.6  
913  
2.03  
19.0  
971  
2.43  
21  
843  
1.62  
14.4  
888  
1.91  
15.3  
935  
2.24  
17.3  
984  
2.63  
19.8  
1037  
3.07  
22  
Sones  
RPM  
BHP  
930  
2.18  
15.7  
976  
Sones  
RPM  
BHP  
1014  
2.83  
18.0  
1061  
3.26  
20  
1055  
3.15  
18.5  
1097  
3.59  
20  
2.54  
17.6  
1024  
2.94  
19.9  
1073  
3.40  
22  
Sones  
RPM  
BHP  
1132  
3.92  
21  
1170  
4.26  
21  
Sones  
RPM  
BHP  
1109  
3.74  
22  
1144  
4.09  
23  
1177  
4.44  
23  
1209  
4.79  
23  
Sones  
RPM  
BHP  
1053  
3.19  
23  
1090  
3.56  
24  
1125  
3.92  
25  
1158  
4.28  
25  
1192  
4.64  
25  
1224  
5.02  
25  
Sones  
RPM  
BHP  
989  
2.50  
23  
1030  
2.88  
23  
1070  
3.27  
24  
1108  
3.69  
24  
1144  
4.11  
25  
1178  
4.49  
26  
1210  
4.87  
26  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
35  
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SWB-206 - Belt Drive  
Series 200  
183⁄4  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
11  
10  
9
RPM  
HP  
(476)  
85⁄8  
(219)  
151⁄2  
81⁄4  
Density 0.075 lb/ft3  
2
(394)  
(210)  
(51)  
111⁄2  
(292)  
111⁄4  
8
(286)  
7
265⁄8  
(676)  
11  
(279)  
6
221⁄4  
5
11⁄2  
(38)  
(565)  
151⁄8  
(384)  
4
3
2
12 (305)  
16 (406)  
167⁄8 (429)  
1
203⁄8 (518)  
22 (559)  
0
0
1
2
3
4
5
6
7
Volume (cfm X 100)  
Wheel Diameter = 111⁄8 (283)  
Shaft Diameter = 3/4 (19)  
0
1
2
3
4
5
6
7
8
9
10 11  
Volume (m3/hr x 100)  
Outlet Area = 0.63 ft2 (0.06 m2)  
^Approximate Unit Weight = 140 lb. (64 kg)  
Maximum BHP at a given RPM = (RPM/3629)3  
(Maximum KW at a given RPM = (RPM/4001)3)  
Maximum RPM = 3370  
Tip Speed (ft/min.) = RPM x 2.91  
(Tip Speed (m/s) = RPM x 0.0148)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-206  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM OV  
0.5  
1201  
0.03  
6.4  
1
1.5  
1.75  
2
2.5  
2.75  
3
3.5  
3.75  
RPM  
BHP  
70  
111  
190  
270  
349  
429  
508  
587  
667  
746  
825  
905  
Sones  
RPM  
BHP  
1262  
0.04  
6.8  
1722  
0.09  
9.2  
2079  
0.16  
11.9  
2137  
0.19  
12.5  
2203  
0.22  
13.3  
2289  
0.25  
14.2  
2395  
0.28  
15.2  
2540  
0.34  
16.4  
2721  
0.41  
18.1  
2943  
0.51  
19.7  
3170  
0.62  
21  
2238  
0.20  
13.2  
2292  
0.23  
13.8  
2355  
0.26  
14.5  
2429  
0.29  
15.3  
2529  
0.33  
16.5  
2643  
0.39  
17.6  
2817  
0.46  
19.2  
3010  
0.55  
21  
120  
170  
220  
270  
320  
370  
420  
470  
520  
570  
Sones  
RPM  
BHP  
1350  
0.05  
7.4  
1786  
0.11  
9.8  
2435  
0.27  
15.0  
2497  
0.31  
15.8  
2566  
0.35  
16.7  
2659  
0.39  
17.8  
2767  
0.44  
19.0  
2907  
0.51  
20  
2698  
0.35  
17.8  
2760  
0.40  
18.6  
2825  
0.45  
19.4  
2898  
0.50  
20  
2822  
0.40  
19.1  
2881  
0.45  
19.7  
2945  
0.51  
20  
2941  
0.45  
20  
3165  
0.56  
22  
3272  
0.62  
24  
Sones  
RPM  
BHP  
1489  
0.07  
8.0  
1868  
0.13  
10.7  
1975  
0.16  
11.8  
2138  
0.20  
12.9  
2341  
0.26  
14.2  
2567  
0.33  
15.8  
2802  
0.42  
17.7  
3051  
0.53  
19.3  
3303  
0.67  
21  
2997  
0.51  
21  
3216  
0.61  
23  
3319  
0.67  
24  
Sones  
RPM  
BHP  
1693  
0.10  
9.0  
3059  
0.57  
22  
3277  
0.68  
24  
Sones  
RPM  
BHP  
1921  
0.14  
10.5  
2169  
0.19  
12.1  
2422  
0.26  
13.7  
2678  
0.35  
15.8  
2936  
0.45  
18.5  
3196  
0.58  
22  
3014  
0.56  
21  
3128  
0.62  
22  
3343  
0.75  
25  
Sones  
RPM  
BHP  
2998  
0.55  
21  
3108  
0.62  
22  
3213  
0.68  
23  
Sones  
RPM  
BHP  
3108  
0.62  
22  
3213  
0.68  
23  
3313  
0.74  
24  
Sones  
RPM  
BHP  
3087  
0.60  
22  
3252  
0.71  
24  
3330  
0.77  
24  
Sones  
RPM  
BHP  
3234  
0.67  
22  
3296  
0.72  
23  
Sones  
RPM  
BHP  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
36  
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SWB-207 - Belt Drive  
Series 200  
183⁄4  
6
5
4
3
2
1
0
RPM  
HP  
85⁄8  
(219)  
81⁄4  
(476)  
151⁄2  
(394)  
14  
12  
10  
8
2
Density 0.075 lb/ft3  
(210)  
(51)  
111⁄4  
111⁄2  
(286)  
(292)  
265⁄8  
(676)  
11  
(279)  
221⁄4  
11⁄2  
(38)  
(565)  
6
151⁄8  
(384)  
4
2
16 (406)  
167⁄8 (429)  
12 (305)  
203⁄8 (518)  
22 (559)  
0
0
0
2
4
6
8
10  
12  
Volume (cfm X 100)  
Wheel Diameter = 111⁄8 (283)  
Shaft Diameter = 3/4 (19)  
5
10  
15  
20  
Volume (m3/hr x 100)  
Outlet Area = 0.63 ft2 (0.06 m2)  
^Approximate Unit Weight = 140 lb. (64 kg)  
Maximum BHP at a given RPM = (RPM/3099)3  
(Maximum KW at a given RPM = (RPM/3417)3)  
Maximum RPM = 3370  
Tip Speed (ft/min.) = RPM x 2.91  
(Tip Speed (m/s) = RPM x 0.0148)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-207  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
1098  
0.04  
6.2  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
5
RPM  
BHP  
1458  
0.10  
9.1  
200  
317  
Sones  
RPM  
BHP  
1244  
0.06  
7.3  
1549  
0.12  
9.7  
1808  
0.19  
11.1  
1923  
0.23  
12.1  
2064  
0.29  
14.2  
2230  
0.37  
16.5  
2404  
0.47  
18.9  
2565  
0.57  
21  
2060  
0.27  
13.3  
2139  
0.32  
14.1  
2259  
0.38  
15.5  
2406  
0.47  
17.9  
2574  
0.57  
21  
280  
360  
440  
520  
600  
444  
571  
698  
825  
952  
Sones  
RPM  
BHP  
1415  
0.09  
8.5  
1687  
0.16  
10.7  
1855  
0.21  
12.4  
2023  
0.28  
15.0  
2195  
0.35  
17.1  
2395  
0.45  
19.5  
2600  
0.58  
23  
2333  
0.40  
15.7  
2446  
0.48  
17.4  
2577  
0.57  
19.5  
2725  
0.68  
22  
2534  
0.51  
17.7  
2618  
0.58  
19.1  
2735  
0.68  
21  
Sones  
RPM  
BHP  
1591  
0.13  
10.0  
1793  
0.19  
12.6  
2007  
0.26  
16.0  
2226  
0.36  
18.4  
2449  
0.47  
22  
2777  
0.68  
21  
2941  
0.80  
22  
3103  
0.94  
24  
3255  
1.07  
25  
Sones  
RPM  
BHP  
2893  
0.79  
23  
3040  
0.91  
24  
3179  
1.03  
25  
3311  
1.16  
26  
Sones  
RPM  
BHP  
2878  
0.80  
24  
3021  
0.92  
25  
3158  
1.04  
26  
3295  
1.17  
27  
Sones  
RPM  
BHP  
2751  
0.70  
23  
2898  
0.81  
25  
3034  
0.93  
25  
3168  
1.06  
26  
3300  
1.20  
28  
680 1079  
760 1206  
840 1333  
920 1460  
1000 1587  
Sones  
RPM  
BHP  
2751  
0.69  
24  
2911  
0.83  
26  
3075  
0.97  
27  
3208  
1.11  
28  
3332  
1.24  
29  
Sones  
RPM  
BHP  
2678  
0.61  
25  
2815  
0.73  
27  
2951  
0.85  
27  
3084  
0.98  
28  
3235  
1.13  
29  
Sones  
RPM  
BHP  
2909  
0.78  
28  
3034  
0.90  
29  
3156  
1.03  
30  
3282  
1.17  
31  
Sones  
RPM  
BHP  
3142  
0.97  
30  
3255  
1.11  
32  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
37  
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SWB-208 - Belt Drive  
Series 200  
183⁄4  
6
5
4
3
2
1
0
RPM  
HP  
(476)  
85⁄8  
(219)  
14  
12  
10  
8
81⁄4  
151⁄2  
(394)  
Density 0.075 lb/ft3  
2
(210)  
(51)  
111⁄2  
111⁄4  
(292)  
(286)  
265⁄8  
(676)  
11  
(279)  
221⁄4  
11⁄2  
(38)  
(565)  
6
151⁄8  
(384)  
4
2
16 (406)  
167⁄8 (429)  
12 (305)  
203⁄8 (518)  
22 (559)  
0
0
0
2
4
6
8
10  
12  
14  
25  
16  
Volume (cfm X 100)  
Wheel Diameter = 111⁄8 (283)  
Shaft Diameter = 3/4 (19)  
5
10  
15  
20  
Volume (m3/hr x 100)  
Outlet Area = 0.63 ft2 (0.06 m2)  
Maximum BHP at a given RPM = (RPM/3242)3  
(Maximum KW at a given RPM = (RPM/3574)3)  
Maximum RPM = 3370  
Tip Speed (ft/min.) = RPM x 2.91  
(Tip Speed (m/s) = RPM x 0.0148)  
^Approximate Unit Weight = 140 lb. (64 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-208  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM OV  
0.5  
1125  
0.04  
7.0  
0.75  
1343  
0.06  
8.0  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
RPM  
BHP  
250  
370  
490  
610  
397  
587  
778  
968  
Sones  
RPM  
BHP  
1270  
0.06  
7.7  
1451  
0.09  
8.3  
1610  
0.11  
8.8  
1909  
0.18  
10.9  
2014  
0.23  
11.4  
2160  
0.29  
12.5  
2323  
0.37  
13.8  
2505  
0.45  
15.6  
2697  
0.56  
17.7  
2896  
0.69  
20  
2172  
0.26  
13.2  
2240  
0.30  
13.1  
2378  
0.38  
14.4  
2528  
0.47  
14.8  
2693  
0.57  
16.5  
2874  
0.69  
18.6  
3065  
0.82  
21  
Sones  
RPM  
BHP  
1445  
0.09  
8.6  
1606  
0.12  
9.1  
1753  
0.16  
9.7  
2472  
0.39  
15.3  
2575  
0.47  
16.2  
2715  
0.57  
17.8  
2871  
0.69  
17.6  
3041  
0.82  
19.5  
3222  
0.97  
21  
2681  
0.49  
17.6  
2755  
0.56  
18.1  
2892  
0.68  
19.9  
3039  
0.81  
18.6  
3198  
0.95  
20  
2874  
0.59  
19.9  
2941  
0.67  
21  
Sones  
RPM  
BHP  
1640  
0.12  
9.2  
1785  
0.16  
10.5  
1980  
0.22  
12.4  
2189  
0.29  
14.1  
2409  
0.38  
16.0  
2637  
0.50  
18.1  
2872  
0.63  
21  
1918  
0.21  
11.3  
2101  
0.27  
12.9  
2298  
0.34  
14.6  
2507  
0.44  
16.6  
2725  
0.56  
18.8  
2951  
0.70  
21  
3121  
0.79  
22  
3289  
0.91  
23  
Sones  
RPM  
BHP  
1852  
0.18  
11.2  
2076  
0.24  
13.5  
2310  
0.33  
15.3  
2548  
0.44  
17.5  
2790  
0.57  
19.9  
3035  
0.73  
22  
3056  
0.79  
22  
3210  
0.90  
22  
3357  
1.01  
23  
730 1159  
850 1349  
970 1540  
1090 1730  
1210 1921  
1330 2111  
1450 2302  
Sones  
RPM  
BHP  
3196  
0.93  
22  
3348  
1.06  
23  
Sones  
RPM  
BHP  
3350  
1.09  
21  
Sones  
RPM  
BHP  
Sones  
RPM  
BHP  
3110  
0.84  
22  
3263  
0.98  
23  
Sones  
RPM  
BHP  
3111  
0.80  
23  
3184  
0.87  
24  
3329  
1.02  
25  
Sones  
RPM  
BHP  
3282  
0.91  
26  
3352  
0.99  
25  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
38  
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SWB-210 - Belt Drive  
Series 200  
183⁄4  
6
5
4
3
2
1
0
RPM  
HP  
(476)  
85⁄8  
(219)  
81⁄4  
151⁄2  
(394)  
14  
12  
10  
8
Density 0.075 lb/ft3  
2
(210)  
(51)  
111⁄2  
111⁄4  
(292)  
(286)  
265⁄8  
(676)  
11  
(279)  
221⁄4  
11⁄2  
(38)  
(565)  
6
151⁄8  
(384)  
4
2
16 (406)  
167⁄8 (429)  
12 (305)  
203⁄8 (518)  
22 (559)  
0
0
3
6
9
12  
15  
18  
21  
24  
40  
27  
Volume (cfm X 100)  
Wheel Diameter = 111⁄8 (283)  
Shaft Diameter = 3/4 (19)  
0
10  
20  
30  
Volume (m3/hr x 100)  
Outlet Area = 0.63 ft2 (0.06 m2)  
Maximum BHP at a given RPM = (RPM/2649)3  
(Maximum KW at a given RPM = (RPM/2921)3)  
Maximum RPM = 3370  
Tip Speed (ft/min.) = RPM x 2.91  
(Tip Speed (m/s) = RPM x 0.0148)  
^Approximate Unit Weight = 140 lb. (64 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-210  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM OV  
0.5  
1158  
0.08  
6.3  
1
1.5  
1809  
0.27  
9.4  
2
2.5  
3
3.5  
4
4.5  
5
RPM  
BHP  
1501  
0.17  
7.6  
625  
992  
Sones  
RPM  
BHP  
1311  
0.12  
7.4  
1583  
0.21  
8.2  
1846  
0.31  
9.8  
2106  
0.44  
11.9  
2143  
0.50  
12.4  
2250  
0.60  
13.9  
2379  
0.72  
15.2  
2528  
0.87  
16.6  
2694  
1.05  
18.3  
2863  
1.25  
20  
2334  
0.58  
13.9  
2371  
0.65  
14.3  
2431  
0.74  
14.8  
2541  
0.87  
15.9  
2676  
1.03  
17.3  
2825  
1.21  
19.0  
2990  
1.43  
21  
800 1270  
975 1548  
1150 1825  
1325 2103  
1500 2381  
1675 2659  
1850 2937  
2025 3214  
2200 3492  
2375 3770  
Sones  
RPM  
BHP  
1480  
0.17  
8.6  
1714  
0.27  
9.5  
1936  
0.38  
10.7  
2063  
0.47  
12.3  
2214  
0.58  
14.3  
2381  
0.72  
16.0  
2550  
0.88  
17.6  
2724  
1.06  
19.3  
2913  
1.28  
21  
2578  
0.81  
15.4  
2615  
0.90  
15.8  
2704  
1.03  
16.7  
2815  
1.20  
18.1  
2958  
1.39  
19.7  
3108  
1.61  
21  
2768  
0.97  
16.6  
2805  
1.07  
17.1  
2854  
1.19  
17.6  
2964  
1.37  
18.8  
3082  
1.58  
20  
Sones  
RPM  
BHP  
1661  
0.24  
10.0  
1853  
0.32  
11.9  
2054  
0.43  
14.0  
2258  
0.56  
16.5  
2465  
0.72  
18.3  
2674  
0.91  
20  
1872  
0.35  
11.0  
2041  
0.45  
12.9  
2214  
0.57  
15.1  
2402  
0.71  
17.0  
2594  
0.89  
18.7  
2793  
1.09  
21  
2982  
1.26  
18.3  
3019  
1.38  
18.8  
3103  
1.55  
19.6  
3214  
1.77  
21  
3148  
1.45  
19.5  
3185  
1.58  
20  
3305  
1.65  
21  
Sones  
RPM  
BHP  
3342  
1.79  
21  
Sones  
RPM  
BHP  
3235  
1.73  
21  
Sones  
RPM  
BHP  
3344  
1.96  
22  
Sones  
RPM  
BHP  
3229  
1.81  
22  
3345  
2.01  
23  
Sones  
RPM  
BHP  
3034  
1.47  
22  
3159  
1.68  
23  
3274  
1.88  
23  
Sones  
RPM  
BHP  
2885  
1.13  
22  
2996  
1.33  
23  
3104  
1.53  
24  
3214  
1.73  
24  
3329  
1.95  
25  
Sones  
RPM  
BHP  
3096  
1.39  
25  
3201  
1.60  
25  
3300  
1.82  
26  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
39  
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SWB-212 - Belt Drive  
Series 200  
213⁄8  
6
5
4
3
2
1
0
RPM  
HP  
(543)  
93⁄4  
(248)  
14  
12  
10  
8
95⁄8  
151⁄2  
(394)  
Density 0.075 lb/ft3  
2
(244)  
(51)  
131⁄4  
13  
(337)  
(330)  
283⁄8  
(721)  
13  
(330)  
221⁄4  
(565)  
11⁄2  
(38)  
6
151⁄8  
(384)  
4
2
16 (406)  
167⁄8 (429)  
12 (305)  
213⁄8 (543)  
229⁄10 (582)  
0
0
5
10  
15  
20  
25  
30  
50  
35  
Volume (cfm X 100)  
Wheel Diameter = 121⁄4 (311)  
Shaft Diameter = 1 (25)  
0
10  
20  
30 40  
Volume (m3/hr x 100)  
Outlet Area = 0.85 ft2 (0.08 m2)  
^Approximate Unit Weight = 170 lb. (77 kg)  
Maximum BHP at a given RPM = (RPM/2372)3  
(Maximum KW at a given RPM = (RPM/2615)3)  
Maximum RPM = 3262  
Tip Speed (ft/min.) = RPM x 3.21  
(Tip Speed (m/s) = RPM x 0.0163)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-212  
Maximum Motor Frame Size = 145T  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
1022  
0.08  
6.0  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
5
RPM  
BHP  
1372  
0.16  
7.9  
600  
706  
Sones  
RPM  
BHP  
1150  
0.11  
7.2  
1447  
0.21  
8.5  
1710  
0.33  
10.4  
1799  
0.42  
11.4  
1913  
0.52  
13.2  
2080  
0.67  
15.7  
2255  
0.84  
17.6  
2443  
1.05  
19.7  
2646  
1.31  
22  
1941  
0.45  
12.7  
2005  
0.56  
13.6  
2113  
0.68  
14.9  
2233  
0.84  
16.5  
2403  
1.03  
18.4  
2578  
1.26  
21  
850 1000  
1100 1294  
1350 1588  
1600 1882  
1850 2176  
2100 2471  
2350 2765  
2600 3059  
2850 3353  
3100 3647  
Sones  
RPM  
BHP  
1325  
0.17  
8.7  
1561  
0.28  
9.8  
2208  
0.71  
15.2  
2291  
0.85  
16.0  
2404  
1.02  
17.4  
2538  
1.22  
19.2  
2708  
1.47  
21  
2392  
0.87  
16.5  
2457  
1.03  
17.2  
2564  
1.21  
18.4  
2679  
1.43  
20  
2562  
1.03  
17.8  
2625  
1.21  
18.5  
2712  
1.41  
19.5  
2825  
1.65  
21  
2719  
1.20  
19.0  
2783  
1.40  
19.8  
2851  
1.62  
21  
Sones  
RPM  
BHP  
1522  
0.25  
10.5  
1732  
0.36  
12.8  
1947  
0.50  
15.6  
2177  
0.69  
18.4  
2409  
0.92  
21  
1728  
0.38  
11.7  
1905  
0.51  
14.0  
2104  
0.66  
16.8  
2312  
0.86  
19.0  
2524  
1.10  
21  
2931  
1.59  
21  
3071  
1.79  
23  
Sones  
RPM  
BHP  
2995  
1.83  
22  
3135  
2.05  
23  
Sones  
RPM  
BHP  
2962  
1.87  
22  
3091  
2.10  
23  
Sones  
RPM  
BHP  
2830  
1.69  
22  
2944  
1.91  
23  
3076  
2.16  
24  
Sones  
RPM  
BHP  
2761  
1.53  
23  
2883  
1.76  
24  
3001  
2.00  
25  
3112  
2.24  
26  
Sones  
RPM  
BHP  
2641  
1.20  
23  
2739  
1.39  
24  
2855  
1.62  
25  
2962  
1.85  
26  
3065  
2.10  
27  
Sones  
RPM  
BHP  
2874  
1.53  
27  
2968  
1.75  
27  
3067  
1.98  
28  
3169  
2.23  
29  
Sones  
RPM  
BHP  
3108  
1.91  
30  
3199  
2.17  
31  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
40  
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SWB-213 - Belt Drive  
Series 200  
Note: New dimensions on this model  
233⁄8  
6
5
4
3
2
1
0
RPM  
HP  
105⁄8  
(270)  
(594)  
14  
12  
10  
8
213⁄4  
(552)  
105⁄8  
2
Density 0.075 lb/ft3  
(270)  
(51)  
141⁄4  
145⁄8  
(362)  
(371)  
311⁄4  
(794)  
14  
(356)  
243⁄4  
11⁄2  
(38)  
(629)  
6
165⁄8  
(422)  
4
2
175⁄8 (448)  
187⁄8 (479)  
13 (330)  
271⁄2 (699)  
301⁄8 (765)  
0
0
0
5
10  
15  
20  
25  
30  
35  
60  
40  
45  
Volume (cfm X 100)  
Wheel Diameter = 131⁄2 (343)  
Shaft Diameter = 1 (25)  
20  
40  
Volume (m3/hr x 100)  
Outlet Area = 1.03 ft2 (0.10 m2)  
^Approximate Unit Weight = 183 lb. (83 kg)  
Maximum BHP at a given RPM = (RPM/2002)3  
(Maximum KW at a given RPM = (RPM/2207)3)  
Maximum RPM = 2902  
Tip Speed (ft/min.) = RPM x 3.53  
(Tip Speed (m/s) = RPM x 0.0179)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-213  
Maximum Motor Frame Size = 184T  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
998  
0.75  
1144  
0.18  
7.5  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
RPM  
BHP  
1287  
0.24  
8.4  
1000 971  
1280 1243  
1560 1515  
1840 1786  
2120 2058  
2400 2330  
2680 2602  
2960 2874  
3240 3146  
3520 3417  
3800 3689  
0.12  
6.9  
Sones  
RPM  
BHP  
1134  
0.18  
8.2  
1248  
0.24  
8.7  
1358  
0.31  
9.2  
1585  
0.46  
11.0  
1660  
0.56  
12.2  
1778  
0.70  
14.1  
1913  
0.87  
16.3  
2063  
1.09  
18.1  
2222  
1.34  
20  
Sones  
RPM  
BHP  
1290  
0.26  
9.6  
1384  
0.33  
10.2  
1540  
0.45  
12.0  
1703  
0.59  
14.2  
1874  
0.78  
17.0  
2048  
1.01  
19.0  
2226  
1.27  
21  
1478  
0.40  
10.8  
1619  
0.53  
12.6  
1775  
0.69  
15.0  
1938  
0.88  
17.3  
2107  
1.12  
19.3  
2280  
1.40  
21  
1850  
0.74  
14.2  
1931  
0.89  
15.5  
2051  
1.08  
17.1  
2184  
1.30  
18.8  
2332  
1.58  
21  
2034  
0.95  
15.8  
2093  
1.10  
16.5  
2181  
1.29  
17.9  
2307  
1.53  
19.7  
2440  
1.81  
22  
Sones  
RPM  
BHP  
1457  
0.37  
11.5  
1629  
0.51  
13.7  
1807  
0.68  
16.4  
1987  
0.89  
18.8  
2170  
1.14  
21  
2249  
1.32  
17.7  
2318  
1.52  
18.8  
2423  
1.78  
20  
Sones  
RPM  
BHP  
2462  
1.77  
19.8  
2543  
2.03  
21  
2596  
2.03  
21  
2730  
2.31  
23  
Sones  
RPM  
BHP  
2665  
2.29  
22  
2790  
2.58  
24  
Sones  
RPM  
BHP  
2550  
2.07  
22  
2656  
2.34  
23  
2758  
2.62  
24  
2869  
2.90  
25  
Sones  
RPM  
BHP  
2386  
1.64  
22  
2489  
1.89  
23  
2587  
2.16  
24  
2685  
2.42  
25  
2784  
2.69  
26  
2884  
2.99  
27  
Sones  
RPM  
BHP  
2355  
1.44  
23  
2407  
1.58  
23  
2457  
1.72  
24  
2555  
1.99  
25  
2650  
2.26  
25  
2744  
2.54  
26  
2832  
2.83  
27  
Sones  
RPM  
BHP  
2541  
1.79  
26  
2589  
1.94  
26  
2636  
2.10  
27  
2727  
2.40  
27  
2816  
2.68  
28  
Sones  
RPM  
BHP  
2729  
2.19  
29  
2773  
2.36  
30  
2817  
2.53  
30  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
41  
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SWB-215 - Belt Drive  
Series 200  
Note: New dimensions on this model  
253⁄4  
6
5
4
3
2
1
0
RPM  
HP  
(654)  
115⁄8  
(296)  
211⁄2  
115⁄8  
(295)  
14  
12  
10  
8
2
Density 0.075 lb/ft3  
(546)  
(51)  
161⁄4  
153⁄4  
(413)  
(400)  
343⁄4  
(883)  
157⁄8  
(403)  
271⁄2  
11⁄2  
(38)  
(699)  
6
181⁄2  
(470)  
4
2
20 (508)  
211⁄8 (537)  
15 (381)  
271⁄8 (689)  
311⁄4 (794)  
0
0
9
18  
27  
36  
45  
80  
54  
Volume (cfm X 100)  
Wheel Diameter = 15 (381)  
Shaft Diameter = 1 (25)  
0
20  
40  
60  
Volume (m3/hr x 100)  
Outlet Area = 1.25 ft2 (0.12 m2)  
Maximum BHP at a given RPM = (RPM/1679)3  
(Maximum KW at a given RPM = (RPM/1851)3)  
Maximum RPM = 2604  
^Approximate Unit Weight = 231 lb. (105 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
Tip Speed (ft/min.) = RPM x 3.93  
(Tip Speed (m/s) = RPM x 0.0200)  
SWB-215  
Maximum Motor Frame Size = 184T  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
886  
0.75  
1024  
0.21  
7.5  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
RPM  
BHP  
1157  
0.29  
8.5  
1200 960  
1550 1240  
1900 1520  
2250 1800  
2600 2080  
2950 2360  
3300 2640  
3650 2920  
4000 3200  
4350 3480  
4700 3760  
0.15  
6.9  
Sones  
RPM  
BHP  
1009  
0.22  
8.2  
1112  
0.29  
8.7  
1214  
0.37  
9.3  
1421  
0.56  
11.2  
1487  
0.68  
12.3  
1593  
0.85  
14.2  
1715  
1.07  
16.3  
1852  
1.33  
18.2  
1996  
1.65  
20  
Sones  
RPM  
BHP  
1150  
0.32  
9.7  
1236  
0.40  
10.2  
1377  
0.54  
12.1  
1525  
0.72  
14.3  
1680  
0.96  
17.0  
1839  
1.23  
19.2  
2001  
1.56  
21  
1322  
0.49  
10.8  
1449  
0.64  
12.7  
1591  
0.84  
15.0  
1738  
1.08  
17.4  
1893  
1.37  
19.4  
2050  
1.72  
22  
1661  
0.91  
14.4  
1732  
1.09  
15.6  
1840  
1.32  
17.2  
1961  
1.59  
19.0  
2095  
1.94  
21  
1830  
1.16  
15.9  
1879  
1.34  
16.6  
1958  
1.58  
18.0  
2072  
1.88  
19.8  
2193  
2.23  
22  
Sones  
RPM  
BHP  
1301  
0.45  
11.5  
1458  
0.62  
13.8  
1620  
0.83  
16.5  
1785  
1.09  
19.0  
1951  
1.41  
21  
2020  
1.61  
17.9  
2083  
1.86  
19.0  
2176  
2.18  
21  
2165  
1.92  
19.3  
2213  
2.17  
20  
Sones  
RPM  
BHP  
2333  
2.48  
21  
2456  
2.83  
23  
Sones  
RPM  
BHP  
2285  
2.49  
22  
2396  
2.81  
23  
Sones  
RPM  
BHP  
2293  
2.54  
23  
2388  
2.88  
24  
Sones  
RPM  
BHP  
2145  
2.02  
22  
2238  
2.33  
23  
2326  
2.66  
24  
2416  
2.98  
25  
Sones  
RPM  
BHP  
2120  
1.78  
24  
2166  
1.95  
24  
2211  
2.13  
24  
2299  
2.46  
25  
2385  
2.79  
26  
Sones  
RPM  
BHP  
2290  
2.21  
26  
2332  
2.41  
27  
2374  
2.60  
27  
2456  
2.97  
28  
Sones  
RPM  
BHP  
2460  
2.72  
30  
2500  
2.93  
30  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
42  
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SWB-216 - Belt Drive  
Series 200  
Note: New dimensions on this model  
28  
6
5
4
3
2
1
0
RPM  
HP  
(711)  
121⁄2  
(318)  
123⁄4  
211⁄2  
(546)  
14  
12  
10  
8
2
Density 0.075 lb/ft3  
(324)  
(51)  
173⁄4  
171⁄2  
(451)  
(445)  
381⁄8  
(968)  
171⁄2  
(445)  
30  
11⁄2  
(38)  
(762)  
203⁄8  
(518)  
6
4
2
213⁄8 (543)  
227⁄8 (581)  
16 (406)  
301⁄4 (769)  
323⁄8 (823)  
0
0
0
1
2
3
4
5
6
7
Volume (cfm X 1000)  
Wheel Diameter = 161⁄2 (419)  
Shaft Diameter = 11⁄4 (32)  
2
4
6
8
10  
Volume (m3/hr x 1000)  
Outlet Area = 1.52 ft2 (0.14 m2)  
Maximum BHP at a given RPM = (RPM/1414)3  
(Maximum KW at a given RPM = (RPM/1559)3)  
Maximum RPM = 2378  
^Approximate Unit Weight = 251 lb. (114 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
Tip Speed (ft/min.) = RPM x 4.32  
(Tip Speed (m/s) = RPM x 0.0219)  
SWB-216  
Maximum Motor Frame Size = 184T  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
762  
0.75  
900  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
RPM  
BHP  
1200 789  
1650 1086  
2100 1382  
2550 1678  
3000 1974  
3450 2270  
3900 2566  
4350 2862  
4800 3158  
5250 3454  
5700 3750  
0.15  
5.9  
0.22  
6.9  
Sones  
RPM  
BHP  
848  
959  
1072  
0.40  
8.4  
1267  
0.61  
10.4  
1322  
0.77  
11.1  
1400  
0.96  
12.7  
1505  
1.20  
14.7  
1626  
1.51  
16.6  
1758  
1.89  
18.5  
1900  
2.34  
21  
0.22  
7.1  
0.31  
7.6  
Sones  
RPM  
BHP  
970  
1059  
0.42  
9.0  
1147  
0.53  
9.6  
1487  
1.03  
13.3  
1543  
1.25  
14.4  
1629  
1.52  
15.7  
1734  
1.84  
17.4  
1853  
2.24  
19.3  
1985  
2.73  
21  
1632  
1.30  
14.8  
1687  
1.56  
15.6  
1749  
1.85  
16.6  
1841  
2.20  
18.3  
1950  
2.61  
20  
0.32  
8.5  
Sones  
RPM  
BHP  
1109  
0.46  
10.1  
1256  
0.65  
12.2  
1410  
0.90  
14.6  
1566  
1.21  
17.5  
1724  
1.59  
19.7  
1884  
2.05  
22  
1182  
0.58  
10.6  
1320  
0.79  
12.7  
1462  
1.04  
15.1  
1616  
1.37  
17.6  
1770  
1.78  
19.9  
1926  
2.25  
22  
1255  
0.70  
11.2  
1381  
0.92  
13.3  
1520  
1.20  
15.7  
1661  
1.53  
17.9  
1813  
1.95  
20  
1818  
1.88  
16.8  
1874  
2.20  
17.6  
1949  
2.57  
19.2  
2042  
3.01  
21  
1939  
2.21  
18.1  
1994  
2.57  
18.9  
2050  
2.96  
20  
Sones  
RPM  
BHP  
2106  
2.94  
20  
2211  
3.33  
21  
Sones  
RPM  
BHP  
2162  
3.38  
21  
2267  
3.80  
22  
Sones  
RPM  
BHP  
2141  
3.43  
22  
2234  
3.86  
23  
2324  
4.30  
24  
Sones  
RPM  
BHP  
2069  
3.11  
22  
2156  
3.53  
23  
2239  
3.97  
24  
2326  
4.43  
25  
Sones  
RPM  
BHP  
1967  
2.45  
23  
2042  
2.85  
23  
2124  
3.29  
24  
2200  
3.72  
25  
2277  
4.14  
26  
2355  
4.60  
27  
Sones  
RPM  
BHP  
2046  
2.60  
25  
2084  
2.81  
25  
2123  
3.04  
25  
2194  
3.46  
26  
2265  
3.92  
27  
2338  
4.41  
28  
Sones  
RPM  
BHP  
2208  
3.25  
28  
2244  
3.47  
29  
2279  
3.71  
29  
2348  
4.19  
30  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
43  
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SWB-218 - Belt Drive  
Series 200  
307⁄8  
6
5
4
3
2
1
0
RPM  
HP  
133⁄4  
(349)  
(784)  
14  
12  
10  
8
22  
(559)  
141⁄8  
Density 0.075 lb/ft3  
2
(359)  
(51)  
195⁄8  
193⁄8  
(498)  
(492)  
191⁄4  
(489)  
42  
331⁄4  
(1067)  
(845)  
11⁄2  
(38)  
6
223⁄8  
(568)  
4
2
177⁄8 (454)  
233⁄8 (594)  
25 (635)  
321⁄4 (819)  
34 (864)  
0
0
1
2
3
4
5
6
7
8
Volume (cfm X 1000)  
Wheel Diameter = 181⁄4 (464)  
Shaft Diameter = 11⁄4 (32)  
0
2
4
6
8
10  
12  
Volume (m3/hr x 1000)  
Outlet Area = 1.87 ft2 (0.17 m2)  
^Approximate Unit Weight = 324 lb. (147 kg)  
3
Maximum BHP at a given RPM = (RPM/1196)  
(Maximum KW at a given RPM = (RPM/1319)3)  
Maximum RPM = 2147  
Tip Speed (ft/min.) = RPM x 4.78  
(Tip Speed (m/s) = RPM x 0.0243)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-218  
Maximum Motor Frame Size = 213T  
Static Pressure in Inches wg  
CFM OV  
0.5  
762  
1
1.5  
1136  
0.75  
13.4  
1185  
0.92  
13.0  
1245  
1.12  
13.9  
1327  
1.36  
15.2  
1423  
1.68  
17.3  
1530  
2.07  
19.6  
1643  
2.52  
22  
2
2.5  
3
3.5  
4
4.5  
5
RPM  
BHP  
963  
2000 1070  
2500 1337  
3000 1604  
3500 1872  
4000 2139  
4500 2406  
5000 2764  
5500 2941  
6000 3209  
6500 3476  
7000 3743  
0.26  
10.1  
862  
0.49  
11.3  
1023  
0.62  
11.6  
1110  
0.80  
12.6  
1211  
1.03  
14.2  
1322  
1.32  
16.4  
1438  
1.66  
18.8  
1557  
2.08  
21  
Sones  
RPM  
BHP  
1330  
1.24  
15.2  
1380  
1.47  
15.5  
1443  
1.74  
16.8  
1525  
2.07  
18.7  
1619  
2.48  
21  
1459  
1.58  
17.9  
1507  
1.85  
18.3  
1557  
2.15  
19.1  
1626  
2.51  
21  
0.37  
10.1  
974  
Sones  
RPM  
BHP  
1623  
2.24  
21  
1730  
2.65  
24  
0.52  
11.5  
1092  
0.72  
13.6  
1218  
0.97  
15.7  
1346  
1.28  
18.2  
1475  
1.66  
21  
Sones  
RPM  
BHP  
1672  
2.58  
22  
1779  
3.02  
25  
1878  
3.48  
27  
1971  
3.95  
29  
2060  
4.43  
31  
Sones  
RPM  
BHP  
1727  
2.95  
23  
1828  
3.43  
25  
1927  
3.93  
27  
2020  
4.44  
29  
2108  
4.96  
32  
Sones  
RPM  
BHP  
1709  
2.92  
23  
1800  
3.41  
24  
1890  
3.90  
26  
1979  
4.42  
28  
2069  
4.96  
30  
Sones  
RPM  
BHP  
1723  
2.97  
24  
1804  
3.43  
25  
1885  
3.91  
26  
1967  
4.45  
28  
2048  
5.00  
29  
Sones  
RPM  
BHP  
1605  
2.10  
24  
1683  
2.58  
24  
1758  
3.04  
25  
1834  
3.54  
26  
1907  
4.03  
27  
1981  
4.54  
28  
2055  
5.07  
30  
Sones  
RPM  
BHP  
1737  
2.63  
27  
1810  
3.15  
28  
1877  
3.65  
28  
1949  
4.18  
29  
2017  
4.72  
30  
2084  
5.25  
31  
Sones  
RPM  
BHP  
1869  
3.26  
31  
1938  
3.81  
31  
2002  
4.37  
31  
2065  
4.91  
32  
2131  
5.49  
33  
Sones  
RPM  
BHP  
2003  
3.98  
34  
2067  
4.57  
35  
2128  
5.18  
35  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
44  
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SWB-220 - Belt Drive  
Series 200  
335⁄8  
6
5
4
3
2
1
0
RPM  
HP  
153⁄8  
147⁄8  
(378)  
(854)  
233⁄4  
(603)  
14  
12  
10  
8
Density 0.075 lb/ft3  
2
(390)  
(51)  
211⁄2  
211⁄8  
(546)  
(537)  
46  
211⁄8  
(537)  
(1168)  
361⁄8  
11⁄2  
(38)  
(918)  
241⁄2  
(622)  
6
4
2
255⁄8 (651)  
273⁄8 (695)  
193⁄8 (492)  
35 (889)  
37 (940)  
0
0
0
2
4
6
8
10  
Volume (cfm X 1000)  
Wheel Diameter = 20 (508)  
Shaft Diameter = 11⁄4 (32)  
2
4
6
8
10  
12  
14  
16  
Volume (m3/hr x 1000)  
Outlet Area = 2.23 ft2 (0.21 m2)  
Maximum BHP at a given RPM = (RPM/1027)3  
(Maximum KW at a given RPM = (RPM/1132)3)  
Maximum RPM = 1961  
Tip Speed (ft/min.) = RPM x 5.23  
(Tip Speed (m/s) = RPM x 0.0266)  
^Approximate Unit Weight = 389 lb. (176 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-220  
Maximum Motor Frame Size = 215T  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
647  
0.25  
8.7  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
4.75  
RPM  
BHP  
860  
2000 897  
2650 1188  
3300 1480  
3950 1771  
4600 2063  
5250 2354  
5900 2646  
6550 2937  
7200 3229  
7850 3520  
8500 3812  
0.51  
11.5  
897  
Sones  
RPM  
BHP  
731  
0.36  
9.2  
1065  
1.00  
13.4  
1104  
1.21  
13.5  
1177  
1.51  
14.9  
1267  
1.88  
16.8  
1370  
2.35  
19.4  
1481  
2.92  
22  
1206  
1.39  
15.9  
1243  
1.64  
15.8  
1289  
1.94  
16.4  
1364  
2.35  
18.4  
1454  
2.84  
21  
0.65  
11.2  
970  
Sones  
RPM  
BHP  
836  
0.53  
10.6  
951  
0.76  
13.0  
1072  
1.06  
15.2  
1198  
1.44  
17.8  
1325  
1.90  
21  
1367  
2.10  
19.0  
1405  
2.43  
19.4  
1461  
2.85  
21  
1480  
2.58  
22  
0.85  
12.1  
1064  
1.11  
13.7  
1171  
1.46  
15.8  
1285  
1.88  
18.4  
1401  
2.40  
21  
Sones  
RPM  
BHP  
1517  
2.96  
23  
1621  
3.51  
26  
1717  
4.08  
28  
1807  
4.67  
30  
1851  
4.97  
32  
Sones  
RPM  
BHP  
1556  
3.38  
23  
1658  
3.98  
26  
1754  
4.60  
28  
1845  
5.23  
31  
1888  
5.55  
32  
Sones  
RPM  
BHP  
1539  
3.37  
23  
1624  
3.94  
25  
1708  
4.52  
26  
1792  
5.15  
28  
1882  
5.83  
31  
1925  
6.18  
32  
Sones  
RPM  
BHP  
1555  
3.45  
24  
1630  
4.00  
25  
1706  
4.58  
26  
1781  
5.23  
28  
1857  
5.87  
30  
1932  
6.52  
32  
Sones  
RPM  
BHP  
1453  
2.47  
24  
1525  
3.04  
25  
1594  
3.59  
25  
1664  
4.18  
26  
1731  
4.76  
27  
1799  
5.37  
29  
1867  
6.01  
30  
1935  
6.70  
32  
Sones  
RPM  
BHP  
1583  
3.15  
28  
1650  
3.78  
28  
1711  
4.37  
28  
1777  
5.01  
29  
1840  
5.66  
30  
1900  
6.30  
32  
Sones  
RPM  
BHP  
1714  
3.97  
31  
1776  
4.64  
32  
1835  
5.32  
32  
1892  
5.96  
33  
1952  
6.67  
34  
Sones  
RPM  
BHP  
1846  
4.92  
36  
1904  
5.63  
36  
1960  
6.38  
37  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
45  
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SWB-222 - Belt Drive  
Series 200  
367⁄8  
6
5
4
3
2
1
0
RPM  
HP  
(937)  
14  
12  
10  
8
161⁄4  
(413)  
17  
21⁄2  
24  
(610)  
Density 0.075 lb/ft3  
(432)  
(64)  
231⁄2  
233⁄4  
(597)  
(603)  
521⁄2  
23  
(584)  
411⁄2  
(1334)  
11⁄2  
(38)  
(1054)  
6
283⁄4  
(730)  
4
2
281⁄4 (718)  
301⁄2 (775)  
20 (508)  
341⁄8 (867)  
395⁄8 (1006)  
0
0
0
2
4
6
8
10  
12  
Volume (cfm X 1000)  
Wheel Diameter = 221⁄4 (565)  
Shaft Diameter = 11⁄4 (32)  
5
10  
15  
20  
Volume (m3/hr x 1000)  
Outlet Area = 2.74 ft2 (0.25 m2)  
^Approximate Unit Weight = 450 lb. (204 kg)  
Maximum BHP at a given RPM = (RPM/897)3  
(Maximum KW at a given RPM = (RPM/989)3)  
Maximum RPM = 1798  
Tip Speed (ft/min.) = RPM x 5.82  
(Tip Speed (m/s) = RPM x 0.0296)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-222  
Maximum Motor Frame Size = 215T  
Static Pressure in Inches wg  
CFM OV  
0.5  
602  
0.30  
9.3  
1
1.5  
949  
2
2.5  
3
3.5  
4
4.5  
5
RPM  
BHP  
783  
0.59  
11.5  
831  
0.77  
11.5  
892  
0.99  
12.6  
975  
1.27  
14.2  
1065  
1.64  
16.5  
1164  
2.09  
19.0  
1267  
2.66  
22  
2500 912  
3250 1186  
4000 1460  
4750 1734  
5500 2007  
6250 2281  
7000 2555  
7750 2828  
8500 3102  
9250 3376  
10000 3650  
0.93  
14.3  
971  
Sones  
RPM  
BHP  
677  
0.43  
9.7  
1099  
1.56  
16.6  
1137  
1.88  
16.8  
1186  
2.27  
17.7  
1249  
2.70  
19.5  
1326  
3.22  
22  
1226  
2.01  
20  
1.15  
13.8  
1019  
1.43  
14.3  
1080  
1.75  
15.6  
1158  
2.14  
17.5  
1244  
2.64  
20  
Sones  
RPM  
BHP  
768  
0.61  
11.2  
868  
0.86  
13.6  
976  
1.18  
15.8  
1085  
1.60  
18.4  
1197  
2.10  
21  
1241  
2.36  
20  
1347  
2.88  
24  
1452  
3.42  
27  
Sones  
RPM  
BHP  
1289  
2.80  
21  
1383  
3.36  
24  
1470  
3.92  
27  
1556  
4.52  
29  
1648  
5.16  
32  
1735  
5.82  
35  
Sones  
RPM  
BHP  
1339  
3.30  
22  
1432  
3.91  
25  
1518  
4.54  
27  
1598  
5.18  
30  
1674  
5.84  
32  
1746  
6.51  
35  
Sones  
RPM  
BHP  
1405  
3.85  
24  
1487  
4.53  
26  
1567  
5.22  
28  
1647  
5.92  
30  
1722  
6.63  
33  
1793  
7.36  
35  
Sones  
RPM  
BHP  
1339  
3.23  
23  
1410  
3.85  
25  
1484  
4.52  
26  
1553  
5.20  
27  
1628  
5.95  
29  
1698  
6.73  
31  
1771  
7.50  
34  
Sones  
RPM  
BHP  
1310  
2.71  
25  
1376  
3.32  
25  
1439  
3.95  
26  
1503  
4.61  
27  
1568  
5.30  
28  
1635  
6.03  
30  
1698  
6.78  
31  
1764  
7.59  
33  
Sones  
RPM  
BHP  
1424  
3.43  
29  
1485  
4.12  
29  
1542  
4.80  
29  
1601  
5.47  
30  
1659  
6.22  
31  
1719  
6.98  
32  
1780  
7.78  
34  
Sones  
RPM  
BHP  
1539  
4.28  
32  
1596  
5.04  
32  
1650  
5.77  
33  
1703  
6.51  
34  
1756  
7.25  
35  
Sones  
RPM  
BHP  
1655  
5.28  
36  
1708  
6.10  
37  
1760  
6.87  
37  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
46  
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SWB-224 - Belt Drive  
Series 200  
405⁄8  
6
5
4
3
2
1
0
RPM  
HP  
(1032)  
173⁄4  
(451)  
14  
12  
10  
8
21⁄2  
25  
(635)  
Density 0.075 lb/ft3  
19  
(483)  
(64)  
261⁄4  
26  
(660)  
(667)  
573⁄4  
(1467)  
257⁄8  
(657)  
453⁄4  
(1162)  
11⁄2  
(38)  
6
311⁄2  
(800)  
4
2
315⁄8 (803)  
335⁄8 (854)  
193⁄4 (502)  
36 (914)  
411⁄2 (1054)  
0
0
0
2
4
6
8
10  
12  
20  
14  
Volume (cfm X 1000)  
Wheel Diameter = 241⁄2 (622)  
Shaft Diameter = 11⁄2 (38)  
5
10  
15  
Volume (m3/hr x 1000)  
Outlet Area = 3.40 ft2 (0.32 m2)  
^Approximate Unit Weight = 568 lb. (258 kg)  
Maximum BHP at a given RPM = (RPM/749)3  
(Maximum KW at a given RPM = (RPM/826)3)  
Maximum RPM = 1588  
Tip Speed (ft/min.) = RPM x 6.41  
(Tip Speed (m/s) = RPM x 0.0326)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown is largest cataloged Open Drip Proof motor  
SWB-224  
Maximum Motor Frame Size = 256T  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
526  
0.34  
7.4  
0.75  
614  
0.51  
9.1  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
RPM  
BHP  
699  
0.71  
12.7  
726  
0.89  
10.4  
783  
1.14  
11.7  
856  
1.49  
13.5  
936  
1.92  
15.8  
1020  
2.44  
18.6  
1108  
3.08  
22  
3000 882  
3900 1147  
4800 1412  
5700 1676  
6600 1941  
7500 2206  
8400 2471  
9300 2735  
10200 3000  
11100 3265  
12000 3529  
Sones  
RPM  
BHP  
594  
0.50  
8.5  
659  
0.68  
9.4  
861  
1.37  
14.5  
890  
Sones  
RPM  
BHP  
674  
0.71  
10.0  
760  
1.00  
12.4  
851  
1.36  
14.5  
946  
1.82  
17.1  
1041  
2.38  
20  
729  
0.92  
11.0  
809  
1.24  
13.0  
894  
1.64  
15.2  
982  
2.13  
17.8  
1076  
2.73  
21  
1001  
2.20  
16.1  
1036  
2.60  
16.5  
1093  
3.11  
18.2  
1162  
3.74  
21  
1106  
2.84  
18.9  
1126  
3.22  
19.1  
1171  
3.77  
20  
1.64  
13.2  
945  
Sones  
RPM  
BHP  
1221  
3.95  
22  
1309  
4.72  
25  
2.01  
14.7  
1015  
2.49  
17.0  
1093  
3.09  
19.7  
1175  
3.79  
23  
Sones  
RPM  
BHP  
1251  
4.49  
23  
1329  
5.24  
25  
1411  
6.10  
27  
1487  
6.98  
29  
Sones  
RPM  
BHP  
1230  
4.45  
22  
1300  
5.19  
24  
1369  
5.98  
26  
1438  
6.80  
27  
1508  
7.65  
29  
Sones  
RPM  
BHP  
1240  
4.51  
24  
1301  
5.24  
25  
1362  
6.03  
25  
1423  
6.85  
26  
1484  
7.69  
28  
Sones  
RPM  
BHP  
1139  
3.07  
24  
1170  
3.44  
25  
1200  
3.83  
25  
1261  
4.60  
27  
1320  
5.39  
27  
1378  
6.20  
27  
1433  
7.01  
28  
1489  
7.87  
28  
Sones  
RPM  
BHP  
1239  
3.89  
28  
1266  
4.29  
29  
1294  
4.71  
29  
1348  
5.55  
30  
1404  
6.41  
30  
1458  
7.28  
30  
1510  
8.16  
31  
Sones  
RPM  
BHP  
1339  
4.85  
31  
1364  
5.28  
32  
1390  
5.73  
32  
1440  
6.65  
32  
1490  
7.57  
33  
Sones  
RPM  
BHP  
1440  
5.98  
34  
1463  
6.43  
35  
1486  
6.90  
35  
1534  
7.89  
36  
Sones  
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.  
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SWB-327 - Belt Drive  
Series 300  
461⁄4  
7
6
5
4
3
2
1
0
RPM  
HP  
(1175)  
211⁄4  
30  
217⁄16  
(545)  
16  
14  
12  
10  
8
43⁄16  
Density 0.075 lb/ft3  
(540)  
(762)  
(106)  
285⁄8  
(727)  
283⁄4  
(730)  
613⁄4  
(1568)  
32  
(813)  
507⁄8  
31⁄2 (1292)  
33  
(838)  
(89)  
6
4
281⁄2 (724)  
2
33 (838)  
353⁄4 (908)  
481⁄4 (1226)  
527⁄16 (1332)  
0
0
0
2
4
6
8
10  
12  
14  
16  
18  
Volume (cfm X 1000)  
Wheel Diameter = 27 (686)  
Shaft Diameter = 111⁄16 (43)  
5
10  
15  
20  
25  
30  
Volume (m3/hr x 1000)  
Outlet Area = 4.19 ft2 (0.389 m2)  
Maximum BHP at a given RPM = (RPM/629)3  
(Maximum KW at a given RPM = (RPM/693)3)  
Maximum RPM = 1425  
Tip Speed (ft/min.) = RPM x 7.07  
(Tip Speed (m/s) = RPM x 0.0359)  
^Approximate Unit Weight = 917 lb. (417 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 256T  
SWB-327  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
551  
0.66  
1
1.5  
756  
1.57  
2
2.5  
3
3.5  
4
4.5  
5
RPM  
BHP  
663  
1.10  
841  
2.08  
5000 1193  
5900 1408  
6800 1622  
7700 1837  
8600 2052  
9500 2267  
10400 2482  
11300 2696  
12200 2911  
13100 3126  
14000 3341  
Sones / LwiA 10.3 / 72 11.8 / 75 13.2 / 77 14.9 / 79  
RPM  
BHP  
604  
712  
800  
878  
953  
1022  
3.69  
0.89  
1.40  
1.92  
2.48  
3.07  
Sones / LwiA 11.5 / 74 12.9 / 76 14.1 / 78 15.6 / 79 17.6 / 81 19.6 / 83  
RPM  
BHP  
666  
764  
849  
923  
991  
1058  
4.26  
1120  
4.96  
1179  
5.67  
1234  
6.40  
1.17  
1.75  
2.34  
2.95  
3.59  
Sones / LwiA 12.9 / 76 14 / 77 15.2 / 79 16.6 / 80 18.2 / 82 19.9 / 83 22 / 85  
24 / 86  
1215  
26 / 88  
1270  
RPM  
BHP  
731  
815  
900  
971  
1037  
4.19  
1098  
4.91  
1157  
5.65  
1322  
8.02  
1.53  
2.17  
2.83  
3.50  
6.43  
7.22  
Sones / LwiA 14.5 / 78 15.2 / 79 16.6 / 80 18.1 / 81 19.4 / 83 21 / 84  
22 / 85  
1201  
24 / 86  
1253  
26 / 88  
1307  
28 / 89  
1358  
RPM  
BHP  
801  
872  
951  
1022  
4.14  
1085  
4.88  
1145  
5.66  
1.97  
2.65  
3.40  
6.45  
7.26  
8.11  
8.97  
Sones / LwiA 16.3 / 80 17 / 80 18.3 / 81 19.7 / 83 21 / 84  
22 / 85  
1194  
24 / 86  
1248  
25 / 87  
1299  
27 / 88  
1348  
29 / 89  
1395  
RPM  
BHP  
871  
934  
1003  
4.03  
1074  
4.86  
1136  
5.67  
2.51  
3.23  
6.50  
7.35  
8.21  
9.10  
10.0  
Sones / LwiA 18.5 / 82 19.2 / 82 20 / 83  
21 / 84  
1125  
23 / 85  
1188  
25 / 87  
1244  
26 / 88  
1297  
28 / 89  
1347  
29 / 89  
1395  
30 / 90  
RPM  
BHP  
942  
997  
3.90  
1059  
4.76  
3.14  
5.66  
6.56  
7.45  
8.35  
9.27  
10.2  
Sones / LwiA 21 / 84  
22 / 84  
1066  
22 / 85  
1121  
24 / 86  
1177  
26 / 87  
1239  
27 / 88  
1296  
29 / 89  
1348  
31 / 90  
1397  
32 / 91  
RPM  
BHP  
1014  
3.89  
4.70  
5.59  
6.55  
7.53  
8.51  
9.47  
10.5  
Sones / LwiA 24 / 86  
24 / 86  
1135  
25 / 87  
1184  
27 / 88  
1236  
28 / 89  
1291  
31 / 90  
1347  
32 / 91  
1400  
33 / 91  
RPM  
BHP  
1086  
4.74  
5.62  
6.54  
7.55  
8.60  
9.66  
10.7  
Sones / LwiA 27 / 88  
28 / 88  
1205  
29 / 89  
1249  
30 / 90  
1298  
32 / 91  
1345  
34 / 92  
1399  
35 / 92  
RPM  
BHP  
1160  
5.72  
6.67  
7.62  
8.68  
9.78  
10.9  
Sones / LwiA 30 / 90  
32 / 91  
1276  
33 / 91  
1317  
35 / 92  
1361  
36 / 93  
1407  
37 / 93  
RPM  
BHP  
1233  
6.83  
7.85  
8.87  
9.94  
11.1  
Sones / LwiA 35 / 92  
37 / 93  
38 / 94  
39 / 94  
40 / 94  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance only.  
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SWB-327-AF - Belt Drive  
Series 300  
461⁄4  
6
5
4
3
2
1
0
RPM  
HP  
(1175)  
211⁄4  
(540)  
14  
12  
10  
8
217⁄16  
43⁄16  
30  
(762)  
Density 0.075 lb/ft3  
(545)  
(106)  
285⁄8  
283⁄4  
(727)  
(730)  
613⁄4  
(1568)  
32  
(813)  
507⁄8  
31⁄2  
(89)  
(1292)  
6
33  
(838)  
4
2
281⁄2 (724)  
33 (838)  
353⁄4 (908)  
481⁄4 (1226)  
527⁄16 (1332)  
0
0
0
2
4
6
8
10  
12  
14  
25  
16  
Volume (cfm X 1000)  
Wheel Diameter = 27 (686)  
Shaft Diameter = 111⁄16 (43)  
5
10  
15  
20  
Volume (m3/hr x 1000)  
Outlet Area = 4.19 ft2 (0.389 m2)  
^Approximate Unit Weight = 877 lb. (399 kg)  
Maximum BHP at a given RPM = (RPM/671)3  
(Maximum KW at a given RPM = (RPM/740)3)  
Maximum RPM = 1450  
Tip Speed (ft/min.) = RPM x 7.07  
(Tip Speed (m/s) = RPM x 0.0359)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 256T  
SWB-327-AF  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
664  
0.86  
1
1.5  
833  
1.90  
2
2.5  
975  
3
3.5  
4
4.5  
5
RPM  
BHP  
755  
1.38  
906  
2.44  
6000 1431  
6700 1599  
7400 1766  
8100 1933  
8800 2100  
9500 2267  
10200 2434  
10900 2601  
11600 2768  
12300 2935  
13000 3102  
3.01  
Sones / LwiA 10 / 72 11.3 / 74 12.6 / 75 14 / 77  
15.6 /79  
1013  
3.41  
RPM  
BHP  
719  
804  
881  
946  
1075  
4.04  
1.07  
1.63  
2.21  
2.80  
Sones / LwiA 11.1 / 74 12.4 / 75 13.8 / 77 15.3 / 79 16.6 / 80 17.4 / 81  
RPM  
BHP  
776  
856  
928  
994  
1052  
3.85  
1112  
4.52  
1169  
5.22  
1223  
5.93  
1.31  
1.92  
2.55  
3.21  
Sones / LwiA 12.6 / 76 13.7 / 77 15.3 / 79 16.8 / 80 17.4 / 81 18.2 / 82 19 / 82 19.9 / 83  
RPM  
BHP  
834  
908  
977  
1041  
3.64  
1100  
4.35  
1152  
5.05  
1208  
5.79  
1260  
6.54  
1310  
7.32  
1.59  
2.24  
2.93  
Sones / LwiA 14.2 / 77 15.4 / 79 16.8 / 80 17.7 / 81 18.4 / 82 19.1 / 82 19.8 / 83 21 / 84  
22 / 85  
1348  
RPM  
BHP  
893  
963  
1028  
3.35  
1089  
4.11  
1147  
4.88  
1200  
5.65  
1247  
6.41  
1299  
7.21  
1395  
8.86  
1.91  
2.61  
8.03  
Sones / LwiA 16.1 / 79 17.3 / 81 18.1 / 82 18.7 / 82 19.4 / 83 20 / 83  
21 / 84  
1295  
22 / 85  
1340  
22 / 85  
1387  
23 / 86  
1433  
RPM  
BHP  
953  
1019  
3.03  
1081  
3.82  
1139  
4.62  
1194  
5.45  
1247  
6.29  
2.28  
7.12  
7.94  
8.79  
9.66  
Sones / LwiA 18.3 / 81 19.2 / 82 19.3 / 83 19.7 / 83 20 / 84  
21 / 84  
1294  
22 / 85  
1343  
23 / 85  
1388  
23 / 86  
1429  
24 / 87  
RPM  
BHP  
1013  
2.70  
1075  
3.51  
1134  
4.33  
1190  
5.19  
1243  
6.07  
6.95  
7.86  
8.75  
9.63  
Sones / LwiA 21 / 83  
20 / 83  
1133  
21 / 84  
1189  
21 / 84  
1242  
21 / 84  
1293  
22 / 85  
1342  
23 / 86  
1390  
24 / 86  
1435  
25 / 87  
RPM  
BHP  
1074  
3.17  
4.03  
4.91  
5.81  
6.73  
7.68  
8.62  
9.59  
Sones / LwiA 22 / 84  
22 / 84  
1192  
22 / 85  
1245  
22 / 85  
1296  
23 / 85  
1345  
23 / 86  
1392  
24 / 86  
1438  
25 / 87  
RPM  
BHP  
1136  
3.70  
4.61  
5.54  
6.49  
7.46  
8.46  
9.46  
Sones / LwiA 23 / 85  
23 / 85  
1251  
23 / 86  
1301  
23 / 86  
1351  
24 / 86  
1398  
25 / 87  
1443  
25 / 87  
RPM  
BHP  
1198  
4.30  
5.26  
6.24  
7.23  
8.25  
9.29  
Sones / LwiA 24 / 86  
24 / 87  
1311  
25 / 87  
1358  
25 / 87  
1406  
25 / 87  
26 / 87  
RPM  
BHP  
1260  
4.96  
5.96  
7.00  
8.04  
Sones / LwiA 26 / 87  
26 / 88  
26 / 88  
26 / 88  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance and LwiA values only.  
49  
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SWB-330 - Belt Drive  
Series 300  
503⁄4  
7
6
5
4
3
2
1
0
RPM  
HP  
(1289)  
231⁄8  
(587)  
333⁄8  
2313⁄16  
16  
14  
12  
10  
8
43⁄16  
Density 0.075 lb/ft3  
(848)  
(605)  
(106)  
315⁄8  
3113⁄16  
(803)  
(808)  
351⁄4  
(895)  
681⁄4  
(1734)  
557⁄8  
31⁄2  
(89)  
(1419)  
365⁄8  
(930)  
6
4
353⁄4 (908)  
381⁄2 (978)  
317⁄8 (810)  
2
54 (1372)  
583⁄16 (1478)  
0
0
0
5
10  
15  
20  
25  
Volume (cfm X 1000)  
Wheel Diameter = 30 (762)  
Shaft Diameter = 115⁄16 (49)  
5
10  
15  
20  
25  
30  
35  
40  
Volume (m3/hr x 1000)  
Outlet Area = 5.17 ft2 (0.480 m2)  
^Approximate Unit Weight = 1088 lb. (495 kg)  
Maximum BHP at a given RPM = (RPM/527)3  
(Maximum KW at a given RPM = (RPM/581)3)  
Maximum RPM = 1279  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
Tip Speed (ft/min.) = RPM x 7.85  
(Tip Speed (m/s) = RPM x 0.0399)  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 256T  
SWB-330  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
531  
1.02  
1
1.5  
709  
2.25  
2
2.5  
849  
3.65  
3
3.5  
4
4.5  
5
RPM  
BHP  
630  
1.62  
782  
2.93  
911  
4.39  
7000 1353  
8000 1547  
9000 1740  
10000 1934  
11000 2127  
12000 2321  
13000 2514  
14000 2707  
15000 2901  
16000 3094  
17000 3288  
Sones / LwiA 12.7 / 76 13.8 / 77 15.3 / 79 16.7 / 80 18.5 / 82 20 / 84  
RPM  
BHP  
580  
671  
748  
816  
879  
940  
997  
5.83  
1050  
6.69  
1.31  
2.00  
2.69  
3.42  
4.19  
5.00  
Sones / LwiA 13.9 / 77 15 / 79 16.3 / 80 17.6 / 81 19.1 / 82 21 / 84  
23 / 86  
1026  
25 / 87  
1079  
RPM  
BHP  
631  
713  
789  
854  
914  
970  
1128  
8.44  
1175  
9.40  
1.67  
2.43  
3.21  
4.00  
4.82  
5.68  
6.58  
7.50  
Sones / LwiA 15.1 / 79 16 / 80 17.5 / 81 18.7 / 82 19.9 / 83 21 / 84  
23 / 86  
1057  
25 /87  
1109  
27 / 88  
1158  
29 / 90  
1204  
RPM  
BHP  
686  
755  
831  
894  
953  
1007  
6.46  
2.12  
2.93  
3.80  
4.66  
5.54  
7.39  
8.38  
9.39  
10.4  
Sones / LwiA 16.7 / 80 17.4 / 81 18.7 / 82 19.9 / 83 21 / 84  
23 / 85  
1045  
24 / 86  
1095  
26 / 87  
1142  
27 / 89  
1188  
29 / 90  
1234  
RPM  
BHP  
742  
804  
872  
936  
993  
6.35  
2.65  
3.51  
4.45  
5.40  
7.32  
8.33  
9.35  
10.4  
11.5  
Sones / LwiA 18.4 / 82 19 / 82 19.9 / 83 21 / 84  
23 / 85  
1034  
24 / 86  
1085  
25 / 87  
1134  
27 / 88  
1180  
28 / 89  
1224  
30 / 90  
1266  
RPM  
BHP  
799  
855  
4.18  
914  
5.19  
978  
6.23  
3.28  
7.26  
8.30  
9.36  
10.5  
11.6  
12.7  
Sones / LwiA 20 / 83  
21 / 84  
906  
21 / 84  
961  
23 / 85  
1019  
24 / 86  
1076  
26 / 87  
1127  
27 / 88  
1174  
29 / 89  
1219  
30 / 90  
1262  
32 / 91  
RPM  
BHP  
857  
4.00  
4.95  
6.02  
7.13  
8.27  
9.38  
10.5  
11.6  
12.8  
Sones / LwiA 22 / 85  
23 / 85  
962  
24 / 86  
1011  
6.96  
25 / 86  
1061  
26 / 88  
1117  
28 / 88  
1169  
29 / 89  
1215  
31 / 90  
1259  
33 / 91  
RPM  
BHP  
915  
4.84  
5.85  
8.13  
9.35  
10.6  
11.8  
13.0  
Sones / LwiA 25 / 86  
25 / 87  
1018  
6.87  
26 / 87  
1062  
8.01  
27 / 88  
1109  
28 / 89  
1159  
30 / 90  
1210  
32 / 91  
1257  
34 / 92  
RPM  
BHP  
974  
5.79  
9.25  
10.5  
11.8  
13.1  
Sones / LwiA 27 / 88  
28 / 88  
1075  
8.02  
28 / 89  
1114  
9.19  
30 / 89  
1159  
31 / 90  
1202  
33 / 91  
1252  
35 / 92  
RPM  
BHP  
1033  
6.86  
10.5  
11.8  
13.2  
Sones / LwiA 30 / 90  
31 / 90  
1132  
9.31  
32 / 91  
1170  
10.5  
33 / 91  
1210  
34 / 92  
1252  
36 / 93  
RPM  
BHP  
1093  
8.07  
11.9  
13.3  
Sones / LwiA 33 / 91  
34 / 92  
35 / 92  
37 / 93  
39 / 94  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance only.  
50  
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SWB-330-AF - Belt Drive  
Series 300  
503⁄4  
6
5
4
3
2
1
0
RPM  
HP  
(1289)  
231⁄8  
(587)  
14  
12  
10  
8
2313⁄16  
43⁄16  
333⁄8  
(848)  
Density 0.075 lb/ft3  
(605)  
(106)  
315⁄8  
3113⁄16  
(803)  
(808)  
681⁄4  
(1734)  
351⁄4  
(895)  
557⁄8  
31⁄2  
(89)  
(1419)  
6
365⁄8  
(930)  
4
2
353⁄4 (908)  
381⁄2 (978)  
317⁄8 (810)  
54 (1372)  
583⁄16 (1478)  
0
0
0
5
10  
15  
20  
25  
Volume (cfm X 1000)  
Wheel Diameter = 30 (762)  
Shaft Diameter = 115⁄16 (49)  
10  
20  
30  
40  
Volume (m3/hr x 1000)  
Outlet Area = 5.17 ft2 (0.480 m2)  
^Approximate Unit Weight = 998 lb. (454 kg)  
Maximum BHP at a given RPM = (RPM/563)3  
(Maximum KW at a given RPM = (RPM/621)3)  
Maximum RPM = 1305  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Tip Speed (ft/min.) = RPM x 7.85  
(Tip Speed (m/s) = RPM x 0.0399)  
Maximum Motor Frame Size = 256T  
SWB-330-AF  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
631  
1.23  
1
1.5  
779  
2.61  
2
2.5  
901  
4.05  
3
3.5  
4
4.5  
5
RPM  
BHP  
709  
1.91  
839  
3.31  
957  
4.81  
8000 1547  
8800 1702  
9600 1856  
10400 2011  
11200 2166  
12000 2321  
12800 2475  
13600 2630  
14400 2785  
15200 2940  
16000 3094  
Sones / LwiA 11.7 / 75 12.9 / 76 14.2 / 77 15.5 / 79 16.9 / 80 18.4 / 82  
RPM  
BHP  
678  
752  
818  
878  
933  
988  
1039  
6.18  
1.49  
2.22  
2.98  
3.76  
4.53  
5.34  
Sones / LwiA 13 / 76  
14 / 77 15.4 / 79 16.7 / 80 18 / 81 19.6 / 83 21 / 83  
RPM  
BHP  
726  
795  
858  
918  
970  
1020  
5.93  
1071  
6.81  
1119  
7.72  
1.79  
2.58  
3.40  
4.24  
5.08  
Sones / LwiA 14.1 / 78 15.3 / 79 16.6 / 80 18 / 81 19.5 / 83 21 / 84  
21 / 84  
1103  
22 / 85  
1150  
RPM  
BHP  
775  
840  
900  
957  
1010  
5.68  
1056  
6.57  
1195  
9.43  
1238  
10.4  
2.14  
2.97  
3.85  
4.75  
7.49  
8.45  
Sones / LwiA 15.6 / 79 16.8 / 80 18 / 81 19.5 / 83 21 / 84  
21 / 84  
1097  
22 / 85  
1139  
23 / 85  
1182  
24 / 86  
1227  
25 / 87  
1269  
RPM  
BHP  
825  
886  
944  
997  
1049  
6.29  
2.53  
3.42  
4.35  
5.32  
7.29  
8.25  
9.24  
10.3  
11.3  
Sones / LwiA 17.3 / 81 18.5 / 82 19.6 / 83 21 / 84  
22 / 85  
1088  
22 / 85  
1136  
23 / 86  
1180  
24 / 86  
1219  
25 / 87  
1259  
25 / 87  
1301  
RPM  
BHP  
875  
933  
987  
4.91  
1039  
5.92  
2.97  
3.92  
6.96  
8.01  
9.08  
10.1  
11.2  
12.3  
Sones / LwiA 19.2 / 82 20 / 83  
22 / 84  
1033  
22 / 85  
1082  
23 / 85  
1129  
23 / 86  
1175  
24 / 86  
1219  
25 / 87  
1260  
25 / 87  
1297  
26 / 88  
RPM  
BHP  
925  
980  
4.48  
3.46  
5.51  
6.58  
7.68  
8.79  
9.92  
11.1  
12.2  
Sones / LwiA 21 / 84  
23 / 85  
1028  
23 / 86  
1079  
23 / 86  
1126  
24 / 86  
1172  
24 / 86  
1215  
25 / 87  
1258  
26 / 87  
1299  
27 / 88  
RPM  
BHP  
976  
4.02  
5.09  
6.18  
7.31  
8.46  
9.64  
10.8  
12.0  
Sones / LwiA 24 / 86  
24 / 86  
1077  
24 / 86  
1125  
24 / 86  
1171  
25 / 87  
1215  
25 / 87  
1257  
26 / 88  
1298  
27 / 88  
RPM  
BHP  
1027  
4.64  
5.76  
6.92  
8.09  
9.30  
10.5  
11.8  
Sones / LwiA 26 / 87  
26 / 87  
1127  
26 / 87  
1172  
26 / 87  
1217  
26 / 87  
1259  
27 / 88  
1300  
27 / 88  
RPM  
BHP  
1079  
5.32  
6.50  
7.72  
8.95  
10.2  
11.5  
Sones / LwiA 27 / 88  
27 / 88  
1176  
27 / 88  
1220  
27 / 88  
1263  
27 / 88  
1303  
28 / 89  
RPM  
BHP  
1131  
6.07  
7.31  
8.59  
9.87  
11.2  
Sones / LwiA 28 / 89  
28 / 89  
28 / 89  
29 / 89  
29 / 89  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance and LwiA values only.  
51  
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SWB-333 - Belt Drive  
Series 300  
559⁄16  
7
6
5
4
3
2
1
0
RPM  
HP  
(1175)  
263⁄16  
333⁄8  
(848)  
43⁄16  
25  
(635)  
16  
14  
12  
10  
8
Density 0.075 lb/ft3  
(665)  
(106)  
349⁄16  
35  
(878)  
(889)  
381⁄4  
(813)  
749⁄16  
603⁄4  
(1894)  
(1543)  
31⁄2  
(89)  
40  
(1016)  
6
4
383⁄4 (984)  
419⁄16 (1056)  
317⁄8 (810)  
2
563⁄8 (1432)  
609⁄16 (1538)  
0
0
0
5
10  
15  
20  
25  
30  
Volume (cfm X 1000)  
Wheel Diameter = 33 (838)  
Shaft Diameter = 115⁄16 (49)  
10  
20  
30  
40  
50  
Volume (m3/hr x 1000)  
Outlet Area = 6.26 ft2 (0.582 m2)  
^Approximate Unit Weight = 1231 lb. (560 kg)  
Maximum BHP at a given RPM = (RPM/445)3  
(Maximum KW at a given RPM = (RPM/491)3)  
Maximum RPM = 1163  
Tip Speed (ft/min.) = RPM x 8.64  
(Tip Speed (m/s) = RPM x 0.0439)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 256T  
SWB-333  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
440  
0.96  
1
1.5  
615  
2.31  
2
2.5  
756  
3.94  
3
3.5  
4
4.5  
5
RPM  
BHP  
535  
1.61  
686  
3.09  
821  
4.86  
7500 1198  
9000 1437  
10500 1677  
12000 1916  
13500 2156  
15000 2396  
16500 2635  
18000 2875  
19500 3115  
21000 3354  
22500 3594  
Sones / LwiA 10 / 71 11.3 / 74 13 / 76 14.9 / 78 17.8 / 81 21 / 83  
RPM  
BHP  
489  
576  
650  
717  
779  
836  
895  
951  
7.68  
1004  
8.80  
1.32  
2.09  
2.87  
3.71  
4.62  
5.57  
6.60  
Sones  
RPM  
BHP  
11.7 / 74 13.1 / 76 14.7 / 78 16.1 / 79 17.6 / 81 19.7 / 83 23 / 85  
26 / 87  
968  
31 / 89  
1018  
547  
619  
690  
753  
811  
867  
919  
7.55  
1068  
11.1  
1.81  
2.68  
3.57  
4.49  
5.43  
6.47  
8.65  
9.83  
Sones / LwiA 14.1 / 77 15.3 / 78 16.8 / 80 18 / 81 19.2 / 82 21 / 83  
22 / 85  
950  
25 / 86  
999  
28 / 88  
1044  
31 / 90  
1088  
RPM  
BHP  
606  
666  
733  
794  
5.41  
849  
6.46  
901  
7.53  
2.42  
3.36  
4.41  
8.66  
9.86  
11.1  
12.3  
Sones  
RPM  
BHP  
16.8 / 80 17.8 / 81 19 / 82  
20 / 83  
836  
21 / 84  
890  
23 / 85  
940  
24 / 86  
987  
26 / 87  
1031  
11.2  
27 / 88  
1075  
29 / 89  
1118  
666  
721  
778  
5.34  
3.17  
4.21  
6.50  
7.64  
8.81  
10.0  
12.5  
13.9  
Sones / LwiA 19.8 / 83 20 / 83  
21 / 84  
826  
23 / 85  
880  
24 / 86  
932  
25 / 87  
980  
27 / 87  
1026  
11.6  
28 / 88  
1070  
12.9  
29 / 89  
1111  
30 / 90  
1150  
RPM  
BHP  
727  
779  
5.23  
4.08  
6.40  
7.72  
9.00  
10.3  
14.2  
15.6  
Sones / LwiA 23 / 85  
23 / 85  
838  
24 / 86  
882  
25 / 87  
927  
27 / 88  
976  
28 / 88  
1023  
11.9  
30 / 89  
1067  
13.3  
31 / 90  
1109  
14.7  
32 / 90  
1150  
33 / 91  
RPM  
BHP  
789  
5.16  
6.44  
7.70  
9.05  
10.5  
16.1  
Sones / LwiA 26 / 87  
26 / 87  
898  
27 / 88  
940  
29 / 89  
978  
30 / 89  
1023  
12.1  
31 / 90  
1067  
13.7  
32 / 91  
1110  
15.3  
33 / 91  
1151  
16.8  
35 / 92  
RPM  
BHP  
852  
6.44  
7.83  
9.21  
10.6  
Sones / LwiA 29 / 89  
30 / 90  
958  
31 / 90  
998  
32 / 91  
1035  
12.4  
34 / 91  
1070  
14.0  
35 / 92  
1114  
15.7  
36 / 92  
1154  
17.4  
37 / 93  
RPM  
BHP  
916  
7.94  
9.42  
10.9  
Sones / LwiA 33 / 91  
34 / 92  
1019  
11.3  
36 / 92  
1058  
12.9  
36 / 93  
1093  
14.5  
37 / 93  
1127  
16.1  
38 / 93  
1161  
17.8  
39 / 94  
RPM  
BHP  
981  
9.67  
Sones / LwiA 38 / 93  
39 / 94  
1081  
13.3  
39 / 94  
1117  
15.1  
40 / 94  
1152  
16.8  
41 / 95  
42 / 95  
RPM  
BHP  
1046  
11.6  
Sones / LwiA 42 / 95  
43 / 95  
43 / 96  
45 / 96  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance only.  
52  
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SWB-333-AF - Belt Drive  
Series 300  
559⁄16  
6
5
4
3
2
1
0
(1175)  
RPM  
HP  
263⁄16  
333⁄8  
(848)  
43⁄16  
25  
(635)  
14  
12  
10  
8
Density 0.075 lb/ft3  
(665)  
(106)  
349⁄16  
35  
(878)  
(889)  
749⁄16  
(1894)  
381⁄4  
(813)  
603⁄4  
31⁄2  
(89)  
(1543)  
6
40  
(1016)  
4
383⁄4 (984)  
419⁄16 (1056)  
317⁄8 (810)  
2
563⁄8 (1432)  
609⁄16 (1538)  
0
0
0
5
10  
15  
20  
25  
Volume (cfm X 1000)  
Wheel Diameter = 33 (838)  
Shaft Diameter = 115⁄16 (49)  
10  
20  
30  
40  
Volume (m3/hr x 1000)  
Outlet Area = 6.26 ft2 (0.582 m2)  
^Approximate Unit Weight = 1166 lb. (530 kg)  
Maximum BHP at a given RPM = (RPM/482)3  
(Maximum KW at a given RPM = (RPM/531)3)  
Maximum RPM = 1186  
Tip Speed (ft/min.) = RPM x 8.64  
(Tip Speed (m/s) = RPM x 0.0439)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 256T  
SWB-333-AF  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
541  
1.25  
1
1.5  
679  
2.79  
2
2.5  
801  
4.42  
3
3.5  
4
4.5  
5
RPM  
BHP  
613  
2.01  
742  
3.61  
9000 1437  
10000 1597  
11000 1757  
12000 1916  
13000 2076  
14000 2236  
15000 2396  
16000 2555  
17000 2715  
18000 2875  
19000 3035  
Sones / LwiA 12.3 / 75 14.1 / 77 16.3 / 79 19.4 / 81 21 / 82  
RPM  
BHP  
584  
652  
714  
772  
828  
5.01  
881  
5.91  
1.52  
2.36  
3.21  
4.09  
Sones / LwiA 14.3 / 77 16.1 / 79 17.7 / 80 20 / 82  
24 / 83  
858  
25 / 85  
909  
RPM  
BHP  
628  
692  
751  
805  
956  
7.63  
1003  
8.55  
1.84  
2.75  
3.67  
4.62  
5.61  
6.62  
Sones / LwiA 16.5 / 79 17.8 / 81 19.2 / 82 21 / 83  
25 / 84  
890  
31 / 86  
938  
31 / 87  
985  
31 / 89  
1029  
RPM  
BHP  
674  
734  
789  
841  
5.21  
1072  
10.6  
36 / 90  
1099  
2.21  
3.20  
4.19  
6.25  
7.33  
31 / 87  
969  
8.44  
9.58  
38 / 90  
1058  
Sones / LwiA 18.9 / 82 19.4 / 82 21 / 83  
22 / 84  
878  
25 / 85  
925  
39 / 89  
1015  
9.27  
RPM  
BHP  
719  
776  
3.69  
829  
4.77  
1139  
12.8  
2.65  
5.86  
6.96  
8.10  
10.5  
11.7  
Sones / LwiA 21 / 83  
21 / 83  
820  
22 / 84  
870  
24 / 85  
916  
26 / 87  
962  
31 / 88  
1005  
8.94  
37 / 89  
1046  
10.2  
43 / 91  
1088  
43 / 91  
1128  
42 / 92  
1167  
RPM  
BHP  
766  
3.14  
4.23  
5.41  
6.56  
7.74  
11.4  
12.7  
14.0  
Sones / LwiA 22 / 84  
23 / 85  
864  
24 / 86  
911  
26 / 87  
957  
28 / 88  
999  
31 / 89  
1041  
9.85  
35 / 90  
1081  
11.1  
41 / 91  
1119  
46 / 92  
1158  
50 / 93  
RPM  
BHP  
812  
3.70  
4.84  
6.09  
7.33  
8.59  
12.5  
13.8  
Sones / LwiA 24 / 86  
25 / 86  
909  
26 / 87  
954  
27 / 88  
997  
30 / 89  
1039  
9.49  
32 / 90  
1078  
10.8  
34 / 91  
1117  
12.2  
39 / 92  
1154  
44 / 93  
RPM  
BHP  
859  
4.33  
5.52  
6.83  
8.17  
13.6  
Sones / LwiA 26 / 87  
27 / 88  
954  
28 / 88  
998  
29 / 89  
1039  
9.08  
31 / 90  
1079  
10.5  
33 / 91  
1117  
11.9  
36 / 91  
1154  
13.3  
39 / 92  
RPM  
BHP  
907  
5.03  
6.28  
7.65  
Sones / LwiA 28 / 88  
29 / 89  
1000  
7.13  
30 / 90  
1042  
8.54  
31 / 90  
1082  
10.0  
33 / 91  
1120  
11.6  
35 / 91  
1157  
13.0  
37 / 92  
RPM  
BHP  
954  
5.82  
Sones / LwiA 30 / 90  
31 / 90  
1046  
8.07  
32 / 91  
1086  
9.51  
33 / 91  
1125  
11.1  
34 / 92  
1161  
12.7  
36 / 92  
RPM  
BHP  
1002  
6.67  
Sones / LwiA 32 / 91  
33 / 91  
34 / 92  
36 / 92  
37 / 93  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance and LwiA values only.  
53  
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SWB-336 - Belt Drive  
Series 300  
61  
(1549)  
7
6
5
4
3
2
1
0
RPM  
HP  
271⁄4  
(692)  
2815⁄16  
333⁄8  
(848)  
43⁄16  
16  
14  
12  
10  
8
Density 0.075 lb/ft3  
(735)  
(106)  
381⁄4  
3811⁄16  
(972)  
(983)  
823⁄4  
(2102)  
42  
(1067)  
671⁄8  
31⁄2  
(89)  
(1705)  
441⁄2  
(1130)  
6
4
317⁄8 (810)  
2
411⁄2 (1054)  
455⁄16 (1151)  
591⁄8 (1502)  
635⁄16 (1608)  
0
0
5
10  
15  
20  
25  
30  
50  
35  
Volume (cfm X 1000)  
Wheel Diameter = 361⁄2 (927)  
Shaft Diameter = 23⁄16 (56)  
0
10  
20  
30  
40  
Volume (m3/hr x 1000)  
Outlet Area = 7.66 ft2 (0.712 m2)  
^Approximate Unit Weight = 1530 lb. (695 kg)  
Maximum BHP at a given RPM = (RPM/376)3  
(Maximum KW at a given RPM = (RPM/415)3)  
Maximum RPM = 1051  
Tip Speed (ft/min.) = RPM x 9.56  
(Tip Speed (m/s) = RPM x 0.0486)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 286T  
SWB-336  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
362  
0.86  
1
1.5  
532  
2.33  
2
2.5  
3
3.5  
4
4.5  
5
RPM  
BHP  
454  
1.54  
606  
3.24  
7500 979  
9500 1240  
11500 1501  
13500 1762  
15500 2023  
17500 2284  
19500 2545  
21500 2806  
23500 3067  
25500 3328  
27500 3590  
Sones / LwiA 10.7 / 71 10.8 / 73 12.9 / 76 16.1 / 79  
RPM  
BHP  
405  
490  
561  
625  
685  
745  
1.25  
2.06  
2.94  
3.90  
4.95  
6.09  
Sones / LwiA 11.9 / 73 12.6 / 75 14.1 / 77 15.9 / 79 18.7 / 82 22 / 84  
RPM  
BHP  
456  
531  
597  
656  
712  
764  
813  
8.34  
863  
9.70  
911  
11.1  
1.77  
2.74  
3.73  
4.76  
5.91  
7.09  
Sones / LwiA 13.7 / 76 14.6 / 78 16.1 / 79 17.8 / 81 19.3 / 82 21 / 83  
23 / 85  
841  
26 / 87  
885  
30 / 89  
926  
RPM  
BHP  
513  
575  
638  
694  
745  
7.07  
794  
8.35  
970  
14.1  
2.46  
3.56  
4.72  
5.87  
9.70  
11.1  
12.5  
Sones / LwiA 16.2 / 79 17.1 / 80 18.7 / 81 20 / 83  
21 / 84  
784  
22 / 85  
830  
24 / 86  
873  
25 / 87  
915  
28 / 88  
957  
31 / 90  
996  
RPM  
BHP  
572  
623  
680  
734  
7.20  
3.35  
4.54  
5.89  
8.52  
9.88  
11.3  
12.8  
14.3  
15.9  
Sones / LwiA 19.1 / 82 19.9 / 82 21 / 84  
22 / 85  
777  
24 / 85  
825  
25 / 86  
869  
26 / 87  
911  
27 / 88  
951  
29 / 89  
988  
31 / 90  
1026  
18.0  
RPM  
BHP  
631  
680  
5.80  
727  
7.21  
4.45  
8.75  
10.2  
11.7  
13.2  
14.8  
16.4  
Sones / LwiA 22 / 85  
23 / 85  
738  
24 / 86  
778  
25 / 86  
823  
27 / 87  
867  
28 / 88  
910  
29 / 89  
951  
31 / 90  
989  
32 / 90  
1026  
18.8  
33 / 91  
RPM  
BHP  
692  
5.79  
7.30  
8.80  
10.4  
12.2  
13.8  
15.4  
17.1  
Sones / LwiA 26 / 87  
27 / 87  
796  
27 / 88  
835  
28 / 88  
870  
30 / 89  
913  
31 / 90  
953  
33 / 91  
992  
34 / 91  
1030  
19.8  
35 / 92  
RPM  
BHP  
754  
7.41  
9.07  
10.7  
12.4  
14.3  
16.2  
18.0  
Sones / LwiA 29 / 89  
30 / 90  
855  
31 / 90  
892  
32 / 90  
926  
33 / 91  
959  
35 / 92  
999  
37 / 92  
1035  
20.8  
38 / 93  
RPM  
BHP  
817  
9.33  
11.1  
13.0  
14.8  
16.6  
18.7  
Sones / LwiA 33 / 91  
34 / 92  
916  
35 / 92  
951  
37 / 92  
983  
38 / 93  
1014  
19.4  
40 / 94  
1045  
21.5  
41 / 94  
RPM  
BHP  
881  
11.6  
13.5  
15.5  
17.4  
Sones / LwiA 38 / 93  
39 / 94  
976  
40 / 94  
1010  
18.4  
42 / 95  
1041  
20.5  
43 / 95  
44 / 95  
RPM  
BHP  
944  
14.2  
16.3  
Sones / LwiA 43 / 96  
45 / 96  
46 / 96  
47 / 96  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance only.  
54  
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SWB-336-AF - Belt Drive  
Series 300  
61  
6
5
4
3
2
1
0
RPM  
HP  
(1549)  
14  
12  
10  
8
271⁄4  
(692)  
2815⁄16  
43⁄16  
Density 0.075 lb/ft3  
333⁄8  
(848)  
(735)  
(106)  
381⁄4  
(972)  
3811⁄16  
(983)  
823⁄4  
(2102)  
42  
(1067)  
671⁄8  
31⁄2  
(89)  
(1705)  
6
441⁄2  
(1130)  
4
2
411⁄2 (1054)  
455⁄16 (1151)  
317⁄8 (810)  
591⁄8 (1502)  
635⁄16 (1608)  
0
0
5
10  
15  
20  
25  
30  
Volume (cfm X 1000)  
Wheel Diameter = 361⁄2 (927)  
Shaft Diameter = 23⁄16 (56)  
0
10  
20  
30  
40  
50  
Volume (m3/hr x 1000)  
Outlet Area = 7.66 ft2 (0.712 m2)  
^Approximate Unit Weight = 1445 lb. (657 kg)  
Maximum BHP at a given RPM = (RPM/408)3  
(Maximum KW at a given RPM = (RPM/450)3)  
Maximum RPM = 1047  
Tip Speed (ft/min.) = RPM x 9.56  
(Tip Speed (m/s) = RPM x 0.0485)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 286T  
SWB-336-AF  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
521  
1.80  
1
1.5  
639  
3.82  
2
2.5  
744  
3
3.5  
4
4.5  
5
RPM  
BHP  
583  
2.80  
693  
4.89  
792  
12000 1566  
13000 1697  
14000 1827  
15000 1958  
16000 2088  
17000 2219  
18000 2349  
19000 2480  
20000 2610  
21000 2741  
22000 2872  
6.00  
7.06  
Sones / LwiA 14.6 / 78 16.1 / 79 18.2 / 81 21 / 82  
24 / 84  
766  
26 / 85  
812  
RPM  
BHP  
553  
612  
666  
716  
856  
8.93  
2.10  
3.18  
4.27  
5.41  
6.58  
7.80  
Sones  
RPM  
BHP  
16.2 / 79 17.7 / 81 19.9 / 82 22 / 83  
25 / 85  
788  
28 / 86  
833  
30 / 87  
876  
586  
642  
693  
742  
5.96  
917  
11.0  
2.44  
3.61  
4.77  
7.20  
8.48  
9.79  
Sones / LwiA 18 / 81 19.6 / 82 21 / 83  
23 / 84  
769  
26 / 85  
813  
30 / 87  
856  
34 / 88  
897  
34 / 89  
937  
RPM  
BHP  
620  
673  
4.06  
723  
5.31  
976  
13.3  
2.84  
6.57  
7.87  
9.21  
10.6  
12.0  
Sones / LwiA 20 / 83  
22 / 84  
705  
22 / 84  
752  
24 / 85  
796  
26 / 86  
839  
31 / 88  
879  
37 / 89  
920  
40 / 90  
959  
40 / 91  
996  
RPM  
BHP  
654  
1032  
15.8  
3.28  
4.56  
5.89  
7.23  
8.59  
9.99  
11.4  
12.9  
14.4  
Sones / LwiA 22 / 84  
23 / 85  
737  
24 / 85  
782  
25 / 86  
825  
27 / 87  
866  
31 / 88  
905  
37 / 90  
942  
44 / 91  
981  
47 / 92  
1017  
15.4  
45 / 93  
RPM  
BHP  
688  
3.77  
5.10  
6.53  
7.93  
9.37  
10.8  
12.3  
13.9  
Sones / LwiA 24 / 85  
24 / 86  
770  
25 / 86  
813  
27 / 87  
854  
29 / 88  
893  
31 / 89  
932  
36 / 90  
968  
43 / 92  
1003  
14.9  
50 / 93  
1040  
16.5  
RPM  
BHP  
722  
4.32  
5.70  
7.21  
8.69  
10.2  
11.7  
13.3  
Sones / LwiA 25 / 86  
26 / 87  
802  
27 / 87  
845  
28 / 88  
884  
30 / 89  
922  
32 / 90  
959  
37 / 91  
995  
42 / 92  
1029  
16.0  
48 / 93  
RPM  
BHP  
757  
4.92  
6.35  
7.92  
9.50  
11.1  
12.7  
14.3  
Sones / LwiA 27 / 87  
28 / 88  
836  
28 / 88  
876  
30 / 89  
915  
31 / 90  
952  
34 / 91  
986  
37 / 92  
1021  
15.4  
42 / 93  
RPM  
BHP  
792  
5.58  
7.06  
8.69  
10.4  
12.0  
13.7  
Sones / LwiA 28 / 88  
29 / 89  
869  
30 / 89  
909  
31 / 90  
946  
33 / 91  
981  
35 / 92  
1016  
14.8  
38 / 92  
RPM  
BHP  
827  
6.31  
7.85  
9.53  
11.3  
13.0  
Sones / LwiA 30 / 89  
31 / 90  
903  
32 / 90  
941  
33 / 91  
977  
35 / 92  
1012  
14.1  
37 / 92  
1045  
15.9  
RPM  
BHP  
862  
7.10  
8.71  
10.4  
12.3  
Sones / LwiA 32 / 90  
33 / 91  
34 / 91  
35 / 92  
37 / 93  
38 / 93  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance and LwiA values only.  
55  
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SWB-340 - Belt Drive  
Series 300  
6613⁄16  
7
6
5
4
3
2
1
0
RPM  
HP  
295⁄8  
(1697)  
317⁄8  
333⁄8  
43⁄16  
16  
14  
12  
10  
8
Density 0.075 lb/ft3  
(752)  
(848)  
(810)  
(106)  
425⁄8  
(1083)  
423⁄16  
(1072)  
893⁄16  
(2265)  
46  
(1168)  
715⁄8  
(1819)  
31⁄2  
(89)  
47  
(1194)  
6
4
451⁄2 (1156)  
495⁄16 (1253)  
317⁄8 (810)  
2
621⁄16 (1576)  
661⁄4 (1683)  
0
0
5
10  
15  
20  
25  
30  
35  
60  
40  
Volume (cfm X 1000)  
Wheel Diameter = 401⁄4 (1022)  
Shaft Diameter = 23⁄16 (56)  
0
10  
20  
30  
40  
50  
Volume (m3/hr x 1000)  
Outlet Area = 9.31 ft2 (0.865 m2)  
Maximum BHP at a given RPM = (RPM/321)3  
(Maximum KW at a given RPM = (RPM/354)3)  
Maximum RPM = 936  
Tip Speed (ft/min.) = RPM x 10.54  
(Tip Speed (m/s) = RPM x 0.0535)  
^Approximate Unit Weight = 1709 lb. (777 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 286T  
SWB-340  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
391  
1.80  
1
1.5  
521  
3.92  
2
2.5  
625  
6.29  
3
3.5  
4
4.5  
5
RPM  
BHP  
460  
2.85  
575  
5.06  
671  
7.56  
12500 1342  
14250 1530  
16000 1718  
17750 1906  
19500 2094  
21250 2282  
23000 2470  
24750 2658  
26500 2846  
28250 3034  
30000 3222  
Sones / LwiA 10.3 / 71 12.4 / 74 13.9 / 76 15.6 / 78 17.3 / 80 19.4 / 81  
RPM  
BHP  
428  
488  
547  
599  
646  
691  
8.61  
733  
10.0  
2.32  
3.51  
4.70  
5.93  
7.22  
Sones / LwiA 12.6 / 74 14.8 / 76 15.8 / 78 17.4 / 79 19 / 81  
20 / 82  
712  
22 / 83  
754  
RPM  
BHP  
466  
521  
575  
625  
670  
793  
12.9  
829  
14.5  
2.95  
4.25  
5.60  
6.95  
8.34  
9.76  
11.3  
Sones / LwiA 15.2 / 77 16.7 / 78 17.8 / 80 19.4 / 81 21 / 83  
22 / 84  
738  
23 / 84  
776  
24 / 85  
813  
26 / 86  
850  
RPM  
BHP  
506  
555  
603  
652  
697  
9.60  
885  
17.9  
3.72  
5.12  
6.63  
8.10  
11.1  
12.7  
14.4  
16.1  
Sones / LwiA 18.1 / 79 18.5 / 80 19.9 / 81 22 / 83  
23 / 84  
724  
24 / 85  
764  
25 / 86  
802  
26 / 86  
837  
27 / 87  
871  
29 / 88  
905  
RPM  
BHP  
547  
592  
636  
7.75  
680  
9.40  
4.63  
6.14  
11.0  
12.7  
14.4  
16.1  
17.8  
19.7  
Sones / LwiA 19.9 / 82 21 / 82  
22 / 83  
670  
24 / 85  
710  
25 / 85  
751  
26 / 86  
791  
27 / 87  
828  
28 / 88  
863  
29 / 88  
896  
31 / 89  
928  
RPM  
BHP  
589  
629  
7.31  
5.70  
9.02  
10.8  
12.6  
14.4  
16.2  
18.0  
19.9  
21.8  
Sones / LwiA 23 / 84  
24 / 85  
668  
25 / 86  
706  
26 / 86  
744  
27 / 87  
780  
28 / 87  
818  
29 / 88  
855  
31 / 89  
889  
32 / 89  
922  
33 / 90  
RPM  
BHP  
631  
6.94  
8.65  
10.5  
12.4  
14.3  
16.3  
18.2  
20.1  
22.1  
Sones / LwiA 26 / 86  
27 / 87  
708  
28 / 87  
743  
29 / 88  
778  
30 / 88  
813  
31 / 89  
846  
32 / 89  
882  
33 / 90  
917  
34 / 91  
RPM  
BHP  
673  
8.37  
10.2  
12.1  
14.1  
16.2  
18.3  
20.4  
22.4  
Sones / LwiA 29 / 88  
30 / 88  
749  
30 / 89  
781  
31 / 89  
814  
32 / 90  
847  
33 / 90  
879  
35 / 91  
910  
36 / 91  
RPM  
BHP  
716  
9.98  
11.9  
14.0  
16.1  
18.2  
20.5  
22.7  
Sones / LwiA 32 / 90  
33 / 90  
790  
33 / 90  
819  
34 / 91  
851  
35 / 91  
881  
36 / 92  
912  
38 / 92  
RPM  
BHP  
758  
11.8  
13.9  
16.0  
18.2  
20.5  
22.8  
Sones / LwiA 35 / 91  
36 / 91  
832  
36 / 92  
860  
37 / 92  
889  
39 / 92  
918  
40 / 93  
RPM  
BHP  
801  
13.8  
16.1  
18.3  
20.6  
23.0  
Sones / LwiA 38 / 93  
39 / 93  
40 / 93  
41 / 93  
42 / 94  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance only.  
56  
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SWB-340-AF - Belt Drive  
Series 300  
6613⁄16  
6
5
4
3
2
1
0
RPM  
HP  
295⁄8  
(752)  
(1697)  
317⁄8  
333⁄8  
(848)  
14  
12  
10  
8
43⁄16  
Density 0.075 lb/ft3  
(810)  
(106)  
423⁄16  
425⁄8  
(1072)  
(1083)  
893⁄16  
46  
(1168)  
715⁄8  
(2265)  
31⁄2  
(89)  
(1819)  
6
47  
(1194)  
4
2
317⁄8 (810)  
451⁄2 (1156)  
495⁄16 (1253)  
621⁄16 (1576)  
661⁄4 (1683)  
0
0
0
5
10  
15  
20  
25  
30  
50  
35  
Volume (cfm X 1000)  
Wheel Diameter = 401⁄4 (1022)  
Shaft Diameter = 23⁄16 (56)  
10  
20  
30  
40  
Volume (m3/hr x 1000)  
Outlet Area = 9.31 ft2 (0.865 m2)  
^Approximate Unit Weight = 1579 lb. (718 kg)  
Maximum BHP at a given RPM = (RPM/344)3  
(Maximum KW at a given RPM = (RPM/379)3)  
Maximum RPM = 949  
Tip Speed (ft/min.) = RPM x 10.54  
(Tip Speed (m/s) = RPM x 0.0535)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 286T  
SWB-340-AF  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
480  
2.44  
1
1.5  
586  
4.89  
2
2.5  
678  
7.48  
3
3.5  
4
4.5  
5
RPM  
BHP  
535  
3.65  
632  
6.20  
720  
8.79  
15000 1611  
16500 1772  
18000 1933  
19500 2094  
21000 2255  
22500 2416  
24000 2577  
25500 2738  
27000 2900  
28500 3061  
30000 3222  
Sones / LwiA 13.3 / 74 14.6 / 76 16 / 77 17.3 / 78 18.5 / 79 18.9 / 80  
RPM  
BHP  
518  
568  
616  
660  
701  
743  
782  
11.3  
819  
12.8  
2.98  
4.30  
5.63  
7.03  
8.48  
9.88  
Sones / LwiA 15.6 / 77 16.5 / 78 17.9 / 79 19.3 / 80 19.7 / 81 20 / 81  
21 / 82  
806  
21 / 83  
842  
RPM  
BHP  
557  
602  
647  
689  
7.95  
730  
9.50  
767  
11.1  
876  
15.8  
3.60  
5.02  
6.48  
12.6  
14.2  
Sones / LwiA 17.6 / 79 18.7 / 80 20 / 81  
21 / 82  
720  
21 / 82  
759  
21 / 82  
795  
22 / 83  
830  
22 / 84  
865  
24 / 85  
899  
RPM  
BHP  
597  
638  
5.83  
679  
7.43  
931  
19.1  
4.33  
8.99  
10.6  
12.3  
14.0  
15.7  
17.4  
Sones / LwiA 20 / 81  
21 / 82  
674  
22 / 83  
714  
22 / 83  
752  
22 / 83  
789  
23 / 84  
824  
23 / 84  
858  
24 / 85  
889  
25 / 86  
923  
27 / 87  
RPM  
BHP  
637  
5.16  
6.75  
8.45  
10.2  
11.9  
13.6  
15.4  
17.3  
19.1  
Sones / LwiA 23 / 83  
24 / 84  
712  
23 / 84  
749  
23 / 84  
784  
24 / 84  
820  
24 / 85  
853  
25 / 86  
886  
26 / 86  
918  
27 / 87  
947  
RPM  
BHP  
677  
6.10  
7.79  
9.58  
11.4  
13.2  
15.1  
17.0  
18.9  
20.9  
Sones / LwiA 25 / 85  
25 / 85  
750  
25 / 85  
784  
25 / 85  
818  
25 / 86  
852  
25 / 86  
885  
27 / 87  
916  
28 / 88  
947  
29 / 89  
RPM  
BHP  
717  
7.16  
8.94  
10.8  
12.8  
14.7  
16.7  
18.6  
20.7  
Sones / LwiA 27 / 87  
27 / 87  
789  
26 / 87  
820  
26 / 87  
853  
26 / 87  
884  
27 / 88  
916  
29 / 88  
947  
30 / 89  
RPM  
BHP  
758  
8.34  
10.2  
12.2  
14.3  
16.4  
18.4  
20.4  
Sones / LwiA 28 / 88  
28 / 88  
829  
28 / 88  
857  
28 / 88  
888  
29 / 88  
919  
30 / 89  
948  
31 / 90  
RPM  
BHP  
798  
9.66  
11.7  
13.7  
15.9  
18.1  
20.3  
Sones / LwiA 31 / 90  
31 / 90  
869  
30 / 90  
896  
31 / 90  
924  
32 / 90  
32 / 90  
RPM  
BHP  
839  
11.1  
13.2  
15.4  
17.6  
Sones / LwiA 34 / 91  
34 / 91  
908  
33 / 91  
935  
34 / 91  
RPM  
BHP  
880  
12.7  
14.9  
17.2  
Sones / LwiA 37 / 93  
37 / 93  
37 / 93  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance and LwiA values only.  
57  
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SWB-344 - Belt Drive  
Series 300  
733⁄8  
7
6
5
4
3
2
1
0
RPM  
HP  
325⁄16  
(821)  
(1864)  
351⁄4  
411⁄16  
383⁄16  
(970)  
16  
14  
12  
10  
8
Density 0.075 lb/ft3  
(895)  
(119)  
465⁄8  
471⁄8  
(1184)  
(1197)  
985⁄8  
(2505)  
501⁄2  
(1283)  
787⁄8  
31⁄2  
(89)  
(2003)  
52  
(1321)  
6
4
363⁄4 (933)  
2
50 (1270)  
537⁄8 (1368)  
705⁄16 (1786)  
75 (1905)  
0
0
0
10  
20  
30  
40  
50  
Volume (cfm X 1000)  
Wheel Diameter = 441⁄2 (1130)  
Shaft Diameter = 27⁄16 (62)  
10  
20  
30  
40  
50  
60  
70  
80  
Volume (m3/hr x 1000)  
Outlet Area = 11.39 ft2 (1.06 m2)  
^Approximate Unit Weight = 2127 lb. (967 kg)  
Maximum BHP at a given RPM = (RPM/271)3  
(Maximum KW at a given RPM = (RPM/299)3)  
Maximum RPM = 847  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
Tip Speed (ft/min.) = RPM x 11.65  
(Tip Speed (m/s) = RPM x 0.0592)  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 324T  
SWB-344  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
350  
2.12  
1
1.5  
468  
4.67  
2
2.5  
563  
7.55  
3
3.5  
4
4.5  
5
RPM  
BHP  
413  
3.38  
517  
6.06  
15000 1316  
17000 1492  
19000 1668  
21000 1843  
23000 2019  
25000 2194  
27000 2370  
29000 2546  
31000 2721  
33000 2897  
35000 3072  
Sones / LwiA 10.7 / 72 12.5 / 74 14.6 / 76 16.6 / 78 17.7 / 80  
RPM  
BHP  
381  
436  
490  
537  
580  
621  
660  
12.0  
2.70  
4.12  
5.54  
7.02  
8.60  
10.3  
Sones / LwiA 12.7 / 74 14.6 / 76 16.9 / 78 17.7 / 80 19.2 / 81 21 / 83  
23 / 84  
677  
RPM  
BHP  
413  
463  
513  
559  
600  
639  
11.6  
712  
15.3  
745  
17.2  
3.39  
4.95  
6.54  
8.15  
9.81  
13.4  
Sones / LwiA 14.9 / 76 17.1 / 78 18.7 / 80 19.4 / 81 21 / 82  
23 / 84  
659  
24 / 85  
694  
25 / 86  
730  
27 / 87  
763  
RPM  
BHP  
446  
492  
537  
7.67  
582  
9.42  
622  
11.2  
794  
21.1  
4.23  
5.89  
13.1  
14.9  
17.0  
19.0  
Sones / LwiA 17.6 / 79 20 / 80  
20 / 81  
563  
21 / 83  
605  
23 / 84  
645  
25 / 85  
682  
26 / 86  
716  
27 / 87  
748  
28 / 88  
780  
29 / 88  
811  
RPM  
BHP  
481  
522  
6.99  
5.21  
8.91  
10.9  
12.8  
14.7  
16.7  
18.8  
21.0  
23.2  
Sones / LwiA 21 / 81  
22 / 82  
554  
22 / 83  
592  
24 / 84  
629  
25 / 86  
668  
27 / 87  
704  
28 / 87  
738  
29 / 88  
770  
30 / 88  
800  
31 / 89  
829  
RPM  
BHP  
516  
6.35  
8.26  
10.3  
12.4  
14.5  
16.6  
18.7  
20.9  
23.1  
25.4  
Sones / LwiA 23 / 83  
23 / 84  
585  
24 / 85  
621  
26 / 86  
657  
28 / 87  
692  
29 / 88  
727  
30 / 88  
761  
31 / 89  
792  
32 / 89  
822  
33 / 90  
RPM  
BHP  
551  
7.67  
9.69  
11.9  
14.1  
16.4  
18.6  
20.9  
23.2  
25.6  
Sones / LwiA 25 / 85  
26 / 86  
619  
27 / 87  
652  
29 / 88  
685  
30 / 88  
718  
31 / 89  
751  
32 / 89  
784  
33 / 90  
815  
34 / 91  
844  
RPM  
BHP  
586  
9.18  
11.3  
13.6  
16.0  
18.4  
20.9  
23.3  
25.7  
28.2  
Sones / LwiA 28 / 87  
29 / 88  
653  
30 / 88  
684  
31 / 89  
715  
32 / 89  
746  
33 / 90  
775  
34 / 91  
807  
35 / 91  
838  
37 / 92  
RPM  
BHP  
622  
10.9  
13.2  
15.6  
18.0  
20.6  
23.3  
25.9  
28.4  
Sones / LwiA 31 / 89  
32 / 90  
688  
33 / 90  
716  
34 / 90  
746  
35 / 91  
775  
36 / 91  
804  
37 / 92  
831  
38 / 92  
RPM  
BHP  
658  
12.8  
15.2  
17.7  
20.4  
23.0  
25.8  
28.7  
Sones / LwiA 35 / 91  
36 / 91  
723  
36 / 91  
749  
37 / 92  
777  
38 / 92  
804  
39 / 92  
832  
40 / 93  
RPM  
BHP  
695  
15.0  
17.5  
20.1  
22.9  
25.7  
28.6  
Sones / LwiA 38 / 92  
38 / 92  
39 / 93  
40 / 93  
41 / 93  
42 / 94  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
58 Certified Ratings Seal applies to air performance only.  
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SWB-344-AF - Belt Drive  
Series 300  
733⁄8  
6
5
4
3
2
1
0
RPM  
HP  
325⁄16  
(821)  
14  
12  
10  
8
(1864)  
351⁄4  
383⁄16  
(970)  
411⁄16  
Density 0.075 lb/ft3  
(895)  
(119)  
471⁄8  
465⁄8  
(1197)  
(1184)  
985⁄8  
501⁄2  
(1283)  
787⁄8  
(2505)  
(2003)  
31⁄2  
(89)  
6
52  
(1321)  
4
363⁄4 (933)  
2
50 (1270)  
537⁄8 (1368)  
705⁄16 (1786)  
75 (1905)  
0
0
0
5
10  
15  
20  
25  
30  
35  
60  
40  
45  
Volume (cfm X 1000)  
Wheel Diameter = 441⁄2 (1130)  
Shaft Diameter = 27⁄16 (62)  
20  
40  
Outlet Area = 11.39 ft2 (1.06 m2)  
Volume (m3/hr x 1000)  
^Approximate Unit Weight = 1997 lb. (908 kg)  
Maximum BHP at a given RPM = (RPM/291)3  
(Maximum KW at a given RPM = (RPM/321)3)  
Maximum RPM = 860  
Tip Speed (ft/min.) = RPM x 11.65  
(Tip Speed (m/s) = RPM x 0.0592)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 324T  
SWB-344-AF  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
376  
2.03  
1
1.5  
484  
4.56  
2
2.5  
3
3.5  
4
4.5  
5
RPM  
BHP  
433  
3.26  
532  
5.86  
15000 1316  
17000 1492  
19000 1668  
21000 1843  
23000 2019  
25000 2194  
27000 2370  
29000 2546  
31000 2721  
33000 2897  
35000 3072  
Sones / LwiA 10.1 / 71 11.8 / 72 13.9 / 75 15.5 / 77  
RPM  
BHP  
411  
463  
511  
555  
597  
2.56  
3.94  
5.38  
6.85  
8.32  
Sones / LwiA 12 / 73 13.7 / 75 15.6 / 77 16.8 / 78 18.2 / 79  
RPM  
BHP  
447  
494  
539  
581  
621  
659  
694  
12.9  
3.20  
4.74  
6.29  
7.93  
9.57  
11.2  
Sones / LwiA 14.3 / 76 15.8 / 77 17.2 / 78 18.6 / 79 19.9 / 81 21 / 82  
22 / 82  
717  
RPM  
BHP  
485  
528  
570  
609  
646  
10.9  
682  
12.7  
750  
16.4  
3.97  
5.64  
7.34  
9.09  
14.5  
Sones / LwiA 16.9 / 78 18 / 79 19.2 / 80 21 / 81  
22 / 82  
674  
23 / 83  
707  
23 / 83  
740  
24 / 84  
773  
RPM  
BHP  
524  
562  
601  
8.54  
639  
10.4  
804  
20.3  
833  
22.3  
4.87  
6.66  
12.3  
14.4  
16.3  
18.3  
Sones / LwiA 19.5 / 81 20 / 81  
22 / 82  
634  
23 / 83  
670  
24 / 84  
703  
24 / 84  
736  
25 / 85  
766  
25 / 85  
797  
26 / 86  
827  
26 / 86  
856  
RPM  
BHP  
563  
598  
7.83  
5.92  
9.87  
11.9  
13.9  
16.1  
18.2  
20.4  
22.5  
24.7  
Sones / LwiA 22 / 83  
23 / 83  
634  
24 / 84  
668  
26 / 85  
701  
26 / 85  
734  
26 / 85  
765  
26 / 86  
795  
27 / 86  
823  
27 / 87  
851  
28 / 88  
RPM  
BHP  
602  
7.12  
9.16  
11.3  
13.5  
15.7  
17.9  
20.2  
22.6  
25.0  
Sones / LwiA 25 / 85  
26 / 85  
672  
27 / 86  
703  
27 / 86  
734  
27 / 86  
765  
27 / 87  
795  
28 / 87  
823  
28 / 88  
851  
29 / 88  
RPM  
BHP  
642  
8.50  
10.66  
29 / 88  
711  
12.9  
15.3  
17.6  
20.0  
22.4  
24.9  
Sones / LwiA 28 / 87  
29 / 87  
739  
29 / 87  
769  
29 / 87  
797  
29 / 88  
826  
29 / 88  
854  
30 / 89  
RPM  
BHP  
682  
10.1  
12.4  
14.7  
17.2  
19.8  
22.3  
24.8  
Sones / LwiA 31 / 89  
31 / 89  
750  
31 / 89  
775  
31 / 89  
803  
30 / 89  
831  
31 / 89  
858  
31 / 90  
RPM  
BHP  
722  
11.8  
14.2  
16.7  
19.4  
22.1  
24.8  
Sones / LwiA 33 / 90  
33 / 90  
789  
33 / 90  
813  
33 / 90  
839  
33 / 90  
33 / 90  
RPM  
BHP  
762  
13.8  
16.3  
19.0  
21.7  
Sones / LwiA 35 / 92  
35 / 92  
35 / 92  
35 / 92  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance and LwiA values only.  
59  
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SWB-349 - Belt Drive  
Series 300  
805⁄16  
7
6
5
4
3
2
1
0
RPM  
HP  
(2040)  
353⁄16  
383⁄16  
411⁄16  
Density 0.075 lb/ft3  
383⁄4  
(984)  
16  
14  
12  
10  
8
(894)  
(970)  
(119)  
515⁄16  
5111⁄16  
(1313)  
(1303)  
1085⁄16  
(2751)  
55  
(1397)  
861⁄8  
(2188)  
31⁄2  
(89)  
57  
(1448)  
6
4
541⁄2 (1384)  
583⁄8 (1483)  
363⁄4 (933)  
2
7313⁄16 (1875)  
781⁄2 (1994)  
0
0
0
10  
20  
30  
40  
50  
60  
Volume (cfm X 1000)  
Wheel Diameter = 49 (1245)  
Shaft Diameter = 27⁄16 (62)  
20  
40  
60  
80  
100  
Volume (m3/hr x 1000)  
Outlet Area = 13.8 ft2 (1.28 m2)  
Maximum BHP at a given RPM = (RPM/231)3  
(Maximum KW at a given RPM = (RPM/255)3)  
Maximum RPM = 769  
^Approximate Unit Weight = 2433 lb. (1106 kg)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Tip Speed (ft/min.) = RPM x 12.83  
(Tip Speed (m/s) = RPM x 0.0652)  
Maximum Motor Frame Size = 324T  
SWB-349  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
339  
3.08  
1
1.5  
440  
6.44  
2
2.5  
523  
10.1  
3
3.5  
595  
4
4.5  
5
RPM  
BHP  
391  
4.76  
483  
8.20  
560  
20000 1449  
22500 1630  
25000 1811  
27500 1992  
30000 2173  
32500 2355  
35000 2536  
37500 2717  
40000 2898  
42500 3079  
45000 3260  
12.1  
14.1  
Sones / LwiA 13 / 74 14.7 / 76 16.7 / 78 18.8 / 80 20 / 81  
21 / 83  
577  
23 / 84  
611  
RPM  
BHP  
368  
415  
461  
503  
541  
11.5  
643  
18.1  
3.91  
5.77  
7.65  
9.57  
13.7  
15.9  
Sones / LwiA 15.1 / 77 17.1 / 78 19.1 / 80 21 / 82  
21 / 83  
561  
23 / 84  
595  
24 / 85  
628  
26 / 86  
660  
RPM  
BHP  
399  
442  
483  
524  
11.1  
690  
22.6  
718  
25.2  
4.92  
6.92  
9.03  
13.3  
15.5  
17.7  
20.2  
Sones / LwiA 17.6 / 79 19.7 / 80 22 / 82  
23 / 83  
546  
23 / 84  
582  
25 / 85  
616  
26 / 86  
647  
28 / 87  
676  
29 / 88  
706  
31 / 89  
734  
RPM  
BHP  
431  
470  
8.26  
508  
10.6  
6.11  
12.9  
15.2  
17.5  
19.9  
22.4  
25.0  
27.7  
Sones / LwiA 20 / 81  
23 / 82  
499  
24 / 84  
534  
24 / 84  
568  
25 / 86  
604  
27 / 87  
637  
29 / 88  
668  
30 / 89  
696  
31 / 89  
724  
32 / 90  
751  
RPM  
BHP  
464  
7.51  
9.80  
12.3  
14.8  
17.3  
19.8  
22.4  
25.0  
27.7  
30.4  
Sones / LwiA 24 / 83  
26 / 84  
529  
26 / 85  
562  
26 / 86  
594  
28 / 87  
626  
30 / 88  
658  
31 / 89  
689  
32 / 90  
717  
33 / 90  
744  
34 / 91  
RPM  
BHP  
497  
9.13  
11.6  
14.2  
16.9  
19.7  
22.4  
25.1  
27.9  
30.7  
Sones / LwiA 28 / 86  
28 / 86  
560  
28 / 87  
591  
29 / 87  
621  
31 / 88  
650  
33 / 90  
680  
34 / 90  
710  
35 / 91  
738  
36 / 91  
765  
RPM  
BHP  
530  
11.0  
13.6  
16.3  
19.2  
22.2  
25.1  
28.0  
31.0  
34.0  
Sones / LwiA 29 / 87  
29 / 88  
592  
30 / 88  
620  
32 / 89  
648  
34 / 90  
676  
35 / 91  
703  
36 / 91  
732  
37 / 92  
760  
38 / 92  
RPM  
BHP  
564  
13.1  
15.9  
18.8  
21.8  
24.9  
28.1  
31.3  
34.4  
Sones / LwiA 32 / 89  
33 / 90  
625  
34 / 90  
650  
35 / 91  
677  
37 / 91  
703  
38 / 92  
730  
39 / 92  
754  
40 / 93  
RPM  
BHP  
598  
15.5  
18.5  
21.5  
24.7  
27.9  
31.3  
34.7  
Sones / LwiA 35 / 91  
36 / 91  
657  
38 / 92  
681  
39 / 92  
707  
40 / 93  
731  
41 / 93  
756  
42 / 93  
RPM  
BHP  
632  
18.2  
21.3  
24.5  
27.8  
31.2  
34.8  
Sones / LwiA 39 / 93  
41 / 93  
690  
42 / 93  
713  
42 / 94  
736  
43 / 94  
760  
44 / 94  
RPM  
BHP  
666  
21.2  
24.5  
27.9  
31.3  
34.9  
Sones / LwiA 44 / 94  
44 / 94  
45 / 95  
46 / 95  
46 / 95  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance only.  
60  
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SWB-349-AF - Belt Drive  
Series 300  
805⁄16  
6
5
4
3
2
1
0
RPM  
HP  
(2040)  
353⁄16  
(894)  
14  
12  
10  
8
383⁄4  
383⁄16  
(970)  
411⁄16  
Density 0.075 lb/ft3  
(984)  
(119)  
515⁄16  
(1303)  
1085⁄16  
(2751)  
5111⁄16  
(1313)  
55  
(1397)  
861⁄8  
31⁄2  
(89)  
(2188)  
6
57  
(1448)  
4
2
363⁄4 (933)  
541⁄2 (1384)  
583⁄8 (1483)  
7313⁄16 (1875)  
781⁄2 (1994)  
0
0
10  
20  
30  
40  
50  
Volume (cfm X 1000)  
Wheel Diameter = 49 (1245)  
Shaft Diameter = 27⁄16 (62)  
0
20  
40  
60  
80  
Volume (m3/hr x 1000)  
Outlet Area = 13.8 ft2 (1.28 m2)  
^Approximate Unit Weight = 2298 lb. (1045 kg)  
Maximum BHP at a given RPM = (RPM/248)3  
(Maximum KW at a given RPM = (RPM/273)3)  
Maximum RPM = 780  
Tip Speed (ft/min.) = RPM x 12.83  
(Tip Speed (m/s) = RPM x 0.0652)  
All dimensions in inches (millimeters)  
For additional discharge positions see page 13  
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood  
Maximum Motor Frame Size = 324T  
SWB-349-AF  
Static Pressure in Inches wg  
CFM  
OV  
0.5  
365  
2.93  
1
413  
4.56  
1.5  
457  
6.27  
2
2.5  
537  
9.74  
3
3.5  
4
4.5  
5
RPM  
BHP  
499  
7.99  
20000 1449  
22000 1594  
24000 1739  
26000 1884  
28000 2028  
30000 2173  
32000 2318  
34000 2463  
36000 2608  
38000 2753  
40000 2898  
Sones / LwiA 12.4 / 73 13.7 / 75 15.5 / 77 17.5 / 79 18.9 / 80  
RPM  
BHP  
391  
437  
478  
517  
555  
589  
12.9  
3.54  
5.31  
7.13  
9.06  
10.9  
Sones / LwiA 13.7 / 75 15.2 / 76 17.1 / 78 18.8 / 80 20 / 81  
21 / 82  
607  
RPM  
BHP  
419  
461  
501  
537  
572  
12.3  
639  
16.4  
4.24  
6.18  
8.11  
10.2  
14.3  
Sones / LwiA 15.6 / 77 17 / 78 18.9 / 80 20 / 81  
21 / 82  
592  
23 / 83  
624  
24 / 84  
656  
RPM  
BHP  
448  
486  
524  
559  
11.4  
686  
20.4  
714  
22.7  
5.04  
7.10  
9.20  
13.6  
15.9  
18.1  
Sones / LwiA 17.7 / 79 19.1 / 80 20 / 81  
22 / 82  
581  
23 / 83  
613  
24 / 84  
644  
26 / 85  
673  
27 / 85  
703  
27 / 86  
731  
RPM  
BHP  
477  
512  
8.14  
547  
10.4  
757  
27.2  
5.96  
12.7  
15.1  
17.5  
19.9  
22.3  
24.7  
Sones / LwiA 20 / 81  
21 / 82  
539  
22 / 82  
572  
24 / 83  
604  
25 / 84  
635  
26 / 85  
665  
28 / 86  
693  
28 / 86  
721  
28 / 87  
748  
29 / 87  
775  
RPM  
BHP  
506  
7.00  
9.30  
11.8  
14.2  
16.6  
19.2  
21.8  
24.4  
27.0  
29.6  
Sones / LwiA 23 / 83  
23 / 83  
565  
24 / 84  
597  
26 / 85  
628  
27 / 86  
658  
29 / 87  
686  
29 / 87  
714  
29 / 87  
740  
30 / 87  
766  
30 / 88  
RPM  
BHP  
536  
8.17  
10.6  
13.2  
15.8  
18.3  
21.0  
23.8  
26.6  
29.3  
Sones / LwiA 25 / 85  
26 / 85  
594  
27 / 86  
623  
28 / 86  
652  
30 / 87  
681  
30 / 87  
709  
30 / 88  
735  
31 / 88  
761  
31 / 88  
RPM  
BHP  
566  
9.48  
12.0  
14.7  
17.5  
20.2  
23.0  
25.9  
28.8  
Sones / LwiA 27 / 86  
28 / 87  
623  
29 / 87  
650  
31 / 88  
678  
32 / 88  
705  
32 / 88  
732  
32 / 89  
757  
32 / 89  
RPM  
BHP  
596  
10.9  
13.6  
16.4  
19.3  
22.3  
25.2  
28.1  
Sones / LwiA 30 / 88  
31 / 88  
652  
32 / 89  
676  
33 / 89  
703  
33 / 89  
729  
33 / 89  
755  
33 / 89  
RPM  
BHP  
626  
12.5  
15.4  
18.3  
21.3  
24.5  
27.5  
Sones / LwiA 33 / 89  
34 / 90  
681  
35 / 90  
704  
35 / 90  
730  
34 / 90  
754  
34 / 90  
779  
RPM  
BHP  
656  
14.3  
17.3  
20.3  
23.5  
26.7  
30.0  
Sones / LwiA 36 / 91  
37 / 91  
36 / 91  
36 / 91  
36 / 91  
36 / 91  
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the  
effects of appurtenances (accessories). The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown  
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA  
Certified Ratings Seal applies to air performance and LwiA values only.  
61  
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SFD and SFB Specifications  
Model SFD Direct Drive  
Utility Fans  
Model SFB Belt Drive Utility Fans  
Supply, exhaust and return air fans shall be of the  
belt driven utility fan type in AMCA Arrangement  
10 with a single-width, single-inlet housing, in  
clockwise or counterclockwise rotation as specified.  
Supply, exhaust or return  
air fans shall be of the  
direct drive utility fan type,  
in AMCA Arrangement  
4 with a single-width,  
single-inlet housing,  
in clockwise or  
The housing shall be constructed of heavy-gauge  
steel with airtight lock formed seams. The housing  
shall be easily rotated in the field to any of the eight  
standard discharge positions. Housing and bearing  
supports shall be constructed of welded steel  
members to prevent vibration and to rigidly support  
the shaft and bearings.  
counterclockwise  
rotation as specified.  
The housing shall be constructed of heavy-gauge  
galvanized steel with lock formed seams permitting  
no air leakage. The housing shall be easily rotated  
in the field to any of the eight standard discharge  
positions. Housing supports shall be constructed of  
heavy-gauge galvanized steel to minimize vibration  
and rigidly support the motor and wheel.  
Model SFB fan wheels shall be of the forward-  
curved type, constructed of heavy-gauge steel with  
uniform stamped steel blades.  
Wheels shall be statically and dynamically  
balanced. The wheel cone and fan inlet cone shall  
be carefully matched for maximum performance  
and operating efficiency.  
The fan wheel shall be of the forward-curved type  
and shall be constructed of heavy-gauge aluminum.  
Wheels shall be statically and dynamically  
balanced. The wheel cone and fan inlet cone shall  
be carefully matched for maximum performance  
and operating efficiency. Motors shall be heavy-  
duty ball bearing type matched to the fan load  
and furnished at the specified voltage, phase and  
enclosure.  
Motors shall be heavy-duty, ball bearing type,  
matched to the fan load and furnished at the  
specified voltage, phase and enclosure. The fan  
shaft shall be ground and polished solid steel  
mounted in heavy-duty, sealed, pillow block ball  
bearings. Bearings shall be selected for a minimum  
L
life in excess of 100,000 hours (L average of  
10  
50  
500,000 hours) at maximum cataloged operating  
speed. Drives shall be sized for a minimum of  
150% of driven horsepower. Pulleys shall be of the  
fully machined cast iron type, keyed and securely  
attached to the fan and motor shafts. The motor  
pulley shall be adjustable for final system balancing.  
All fans shall bear the AMCA Air Performance seal.  
Utility fans shall be model SFD (with forward-  
curved wheels) as manufactured by Greenheck Fan  
Corporation of Schofield, Wisconsin, USA.  
All fans shall bear the  
AMCA Air Performance  
seal.  
Utility fans shall be model  
SFB (with forward-curved  
wheels) as manufactured  
by Greenheck Fan  
Corporation of Schofield,  
Wisconsin, USA.  
62  
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SWB Specifications  
Model SWB Series 100, 200 and 300  
Belt Drive Utility Fans  
Supply, exhaust and return air fans shall be of the  
belt-driven utility fan type in AMCA Arrangement 10  
with a single-width, single-inlet housing, in clockwise  
or counterclockwise rotation as specified.  
The housing shall be constructed of heavy gauge  
galvanized steel on Series 100 models and includes  
an airtight lock seam. Series 200 and 300 models  
shall have a heavy gauge painted steel housing or  
optional aluminum housing on Series 200. Housing  
shall have an airtight lock seam or optional welded  
seam. The housing shall be field rotatable to any  
of the eight standard discharge positions. To  
prevent vibration and to rigidly support the shaft  
and bearings, Series 100 and 200 drive frame and  
bearing supports shall be constructed of welded  
steel members coated with Permatector™ and Series  
300 shall be constructed of reinforced heavy-gauge  
galvanized steel.  
Series 100  
Series 200  
Series 300  
The fan wheel shall be of the non-overloading  
backward-inclined, centrifugal type. The fan wheel  
shall be constructed of heavy-gauge aluminum on  
Series 200 fans sizes 206-210 and all Series 100  
fans. Series 200 and 300 wheels shall be constructed  
of heavy-gauge steel with optional aluminum on  
Series 200 fans size 212 and larger and all Series 300  
sizes. Series 300-AF fans shall have an aluminum  
backward-inclined airfoil wheel.  
Wheels shall be statically and dynamically balanced.  
The wheel cone and fan inlet cone shall be carefully  
matched for maximum performance and operating  
efficiency.  
Motors shall be heavy-duty ball bearing type matched  
to the fan load and furnished at the specified voltage,  
phase and enclosure. The fan shaft shall be ground  
and polished solid steel mounted in heavy-duty pillow  
block ball bearings. Bearings shall be selected for  
a minimum L life in excess of 100,000 hours (L  
10  
50  
average life of 500,000 hours) at maximum cataloged  
operating speed. Drives shall be sized for a minimum  
of 150% of driven horsepower. Pulleys shall be of  
the fully machined cast iron type, keyed and securely  
attached to the fan and motor shafts. The motor  
pulley shall be adjustable for final system balancing  
for applications with 10 hp or less motors.  
All fans shall bear the AMCA Air Performance seal.  
Utility fans shall be model SWB (with backward-  
inclined wheels) as manufactured by Greenheck Fan  
Corporation in Schofield, Wisconsin, USA.  
63  
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Other Centrifugal Fan Products  
Models BISW/AFSW (single-width) and BIDW/AFDW (double-width) are fans with  
backward inclined or airfoil wheels.  
Greenheck's airfoil and backward inclined centrifugal fans are designed to provide  
efficient and reliable operation for commercial and industrial applications. Our  
products are manufactured with state-of-the-art laser, forming, spinning and  
welding equipment and endure our quality control testing to ensure trouble-free  
operation. Greenheck centrifugal models include industry leading design features  
to ensure your ventilation equipment has the latest technologies available.  
Available with Greenheck centrifugal products:  
• All welded or PermalockTM housing construction  
• Concentric mount bearings with the industry’s highest cataloged bearing life  
• Corrosion-resistant, electrostatically applied and baked powder coatings  
• Both belt and direct drive configurations  
• Three plane, six channel vibration analysis  
Building Value in Air  
Greenheck delivers value  
to mechanical engineers by  
helping them solve virtually  
any air quality challenges  
their clients face with a  
top quality, innovative air-  
related equipment. We offer  
extra value to contractors  
by providing easy-to-install,  
competitively priced, reliable  
products that arrive on time.  
And building owners and  
occupants value the energy  
efficiency, low maintenance  
and quiet dependable operation  
they experience long after the  
construction project ends.  
comprehensive selection of  
Our Warranty  
Greenheck warrants this equipment to be free from defects in material and workmanship for a period  
of one year from the shipment date. Any units or parts which prove defective during the warranty  
period will be replaced at our option when returned to our factory, transportation prepaid. Motors are  
warranted by the motor manufacturer for a period of one year. Should motors furnished by Greenheck  
prove defective during this period, they should be returned to the nearest authorized motor service  
station. Greenheck will not be responsible for any removal or installation costs.  
Prepared to Support  
Green Building Efforts  
As a result of our commitment to continuous improvement, Greenheck reserves the right to change  
specifications without notice.  
00.F&V.1020 R2 11-2011 R  
P.O. Box 410 • Schofield, WI 54476-0410 • Phone (715) 359-6171 • greenheck.com  
Copyright © 2011 Greenheck Fan Corp.  
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