About Electric Motors
When replacing a motor, use the information on your motor’s nameplate to guide your selection.
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US-Made Base-Mount AC Motors




Wound, wired, and assembled in the U.S. These base-mount motors are manufactured for durability and include high-quality bearings, so they hold up to occasional overload conditions and spikes in torque. Rated for continuous duty, they’re often used with equipment that requires constant power, such as fans, pumps, and conveyors. Bolt the base of these motors to any flat surface and connect the shaft to your load.
When pairing with a variable frequency drive (AC motor speed control), choose a three-phase motor that’s inverter rated.
Motors with a vibration-damping base have rubber rings between the base and enclosure to minimize vibration.
Enclosures that are open have vents that let air flow over the motor, which keeps it cool and helps it run efficiently. Use them in clean, dry environments—the enclosure blocks drips and debris that fall from above, but dust and moisture can pass through the vents. Open drip proof (ODP) and open slotted band (OPSB) enclosures only have vents.Enclosures that are totally enclosed don’t have vents, so they can be used in damp and dirty environments. They’re not airtight, but since air isn’t flowing inside the enclosure, the motor won’t run as efficiently as it would in an open enclosure. Totally enclosed fan cooled (TEFC) enclosures have an external fan that blows air over the outside of the enclosure to keep the motor cool. Totally enclosed air-over (TEAO) enclosures don’t have their own fan. They need to be mounted in the airflow of an external fan or blower to keep the motor cool, so they’re often found in HVAC systems. Totally enclosed non-ventilated (TENV) enclosures are designed for use without a fan. They’re more compact than TEFC enclosures, and unlike TEAO enclosures, they can be installed in areas without airflow. However, motors with TENV enclosures are the least efficient because there is no active cooling.
Motors with overload protection turn off in overload conditions to prevent motor damage. Automatic overload protection starts the motor automatically after it cools.
Optional drip covers are recommended when your motor will be mounted with the shaft facing down. They attach to the back side of the motor to prevent moisture from pooling on top.
For technical drawings and 3-D models, click on a part number.
Motors | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Shaft | Drip Covers | ||||||||||||||
Power, hp | Max. Speed, rpm | Full Load Current, A | Inverter Rated | Motor Enclosure Type | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Overload Protection Type | Insulation Max. Temp., °F | Each | Each | ||
115/230 Volts AC, Single Phase | ||||||||||||||||
NEMA 56—Welded Base | ||||||||||||||||
1/3 | 1,740 | 3.4/1.7 | No | Open Dripproof (ODP) | 10 1/8" | 9" | 8 5/8" | 5/8" | 1 7/8" | 3 1/2" | __ | 311° | 00000000 | 0000000 | 00000000 | 0000000 |
NEMA 48—Welded Base | ||||||||||||||||
1/3 | 1,725 | 6.0/3.0 | No | Totally Enclosed Fan Cooled (TEFC) | 10 3/4" | 8 1/2" | 7 1/2" | 1/2" | 1 1/2" | 3" | __ | 266° | 00000000 | 000000 | 00000000 | 000000 |
1/3 | 1,740 | 3.4/1.7 | No | Open Dripproof (ODP) | 9 3/4" | 9" | 8 1/8" | 1/2" | 1 1/2" | 3" | __ | 311° | 00000000 | 000000 | 00000000 | 000000 |
NEMA 48Z—Vibration-Damping Base | ||||||||||||||||
1/3 | 1,700 | 5.6/2.8 | No | Totally Enclosed Air Over (TEAO) | 12" | 6 3/4" | 8 1/4" | 1/2" | 2 1/2" | 3" | Automatic | 266° | 00000000 | 000000 | 000000 | 00 |
NEMA 56—Vibration-Damping Base | ||||||||||||||||
1/3 | 1,725 | 6.0/3.0 | No | Open Dripproof (ODP) | 11" | 6 3/4" | 8" | 5/8" | 1 7/8" | 3 1/2" | Automatic | 266° | 00000000 | 000000 | 00000000 | 000000 |
208/230/460 Volts AC, Three Phase | ||||||||||||||||
NEMA 56—Welded Base | ||||||||||||||||
1/3 | 1,725 | 1.6/1.4/0.7 | No | Totally Enclosed Nonventilated (TENV) | 10 1/4" | 8 1/2" | 6 1/2" | 5/8" | 1 7/8" | 3 1/2" | __ | 311° | 00000000 | 000000 | 000000 | 00 |
NEMA 48—Welded Base | ||||||||||||||||
1/3 | 1,725 | 1.9/1.6/0.8 | No | Totally Enclosed Fan Cooled (TEFC) | 10 3/4" | 8 1/2" | 6 1/4" | 1/2" | 1 1/2" | 3" | __ | 266° | 00000000 | 000000 | 00000000 | 000000 |
Base-Mount AC Motors




To get equipment moving, bolt the base of these motors to any flat surface and connect the shaft to your load. They’re rated for continuous duty, so they’re often used with equipment that requires constant power, like fans, pumps, and conveyors.
When pairing with a variable frequency drive (AC motor speed control), choose a three-phase motor that’s inverter rated.
Motors with a NEMA frame size have an oversized shaft and high-quality bearings to stand up to heavy and side loads better than even our domestic motors. Densely packed windings and thin laminations ensure the motor stays cool and runs efficiently.
Totally enclosed fan cooled (TEFC) enclosures don’t have vents, so they can be used in damp and dirty environments. They have an external fan that blows air over the outside of the enclosure to keep the motor cool. They’re not airtight, but since air isn’t flowing inside the enclosure, the motor won’t run as efficiently as it would in an open enclosure.
Open drip proof (ODP) enclosures have vents that let air flow over the motor, which keeps it cool and helps it run efficiently. Use them in clean, dry environments—the enclosure blocks drips and debris that fall from above, but dust and moisture can pass through the vents.
Motors with automatic overload protection turn off in overload conditions to prevent damage. Once they cool down, they start again automatically.
For technical drawings and 3-D models, click on a part number.
Overall | Shaft | Insulation | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Power, hp | Max. Speed, rpm | Full Load Current, A | Inverter Rated | Motor Enclosure Type | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Overload Protection Type | Class | Max. Temp., °F | Each | |
115/230 Volts AC, Single Phase | |||||||||||||||
NEMA 56 | |||||||||||||||
1/3 | 1,735 | 3.5/1.8 | No | Totally Enclosed Fan Cooled (TEFC) | 11 1/4" | 8" | 7 7/8" | 5/8" | 1 7/8" | 3 1/2" | Automatic | F | 311° | 00000000 | 0000000 |
1/3 | 1,740 | 3.7/1.9 | No | Open Dripproof (ODP) | 11 3/4" | 8" | 7 7/8" | 5/8" | 1 7/8" | 3 1/2" | Automatic | F | 311° | 0000000 | 000000 |
1/3 | 3,500 | 3.4/1.7 | No | Totally Enclosed Fan Cooled (TEFC) | 12 1/2" | 8" | 7 7/8" | 5/8" | 1 7/8" | 3 1/2" | Automatic | F | 311° | 00000000 | 000000 |
230/460 Volts AC, Three Phase | |||||||||||||||
NEMA 56 | |||||||||||||||
1/3 | 1,735 | 1.1/0.5 | Yes | Open Dripproof (ODP) | 8 7/8" | 9" | 6 3/8" | 5/8" | 1 7/8" | 3 1/2" | __ | F | 311° | 00000000 | 000000 |
US-Made Face-Mount AC Motors




Wound, wired, and assembled in the U.S. These motors are manufactured for durability and include high-quality bearings, so they hold up to occasional overload conditions and spikes in torque. They bolt directly to gearboxes, pumps, and other machinery. These motors are more compact than base-mount motors and the direct, rigid connection to your equipment keeps them aligned. Rated for continuous duty, they’re often used with equipment that requires constant power, like fans, pumps, and conveyors.
When pairing with a variable frequency drive (AC motor speed control), choose a three-phase motor that’s inverter rated.
Enclosures that are open have vents that let air flow over the motor, which keeps it cool and helps it run efficiently. Use them in clean, dry environments—the enclosure blocks drips and debris that fall from above, but dust and moisture can pass through the vents. Open drip proof (ODP) enclosures have vents. Enclosures that are totally enclosed don’t have vents, so they can be used in damp and dirty environments. They’re not airtight, but since air isn’t flowing inside the enclosure, the motor won’t run as efficiently as it would in an open enclosure. Totally enclosed fan cooled (TEFC) enclosures have an external fan that blows air over the outside of the enclosure to keep the motor cool. Totally enclosed non-ventilated (TENV) enclosures are designed for use without a fan, so they’re more compact and easier to maintain. However, the motor gets warmer and runs less efficiently than it would with a fan to cool it.
Optional drip covers are recommended when your motor will be mounted with the shaft facing down. They attach to the back side of the motor to prevent moisture from pooling on top.
For technical drawings and 3-D models, click on a part number.
Motors | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Shaft | Drip Covers | |||||||||||||
Power, hp | Max. Speed, rpm | Full Load Current, A | Inverter Rated | Motor Enclosure Type | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Insulation Max. Temp., °F | Each | Each | ||
115/208/230 Volts AC, Single Phase | |||||||||||||||
NEMA 56C | |||||||||||||||
1/3 | 3,450 | 6.0/3.2/3.0 | No | Totally Enclosed Fan Cooled (TEFC) | 11 1/2" | 8 1/2" | 7 1/2" | 5/8" | 1 7/8" | 3" | 266° | 00000000 | 0000000 | 00000000 | 0000000 |
115/230 Volts AC, Single Phase | |||||||||||||||
NEMA 56C | |||||||||||||||
1/3 | 1,725 | 6.0/3.0 | No | Totally Enclosed Fan Cooled (TEFC) | 11 1/2" | 8 1/2" | 7 1/2" | 5/8" | 1 7/8" | 3" | 266° | 00000000 | 000000 | 00000000 | 000000 |
1/3 | 1,740 | 3.4/1.7 | No | Open Dripproof (ODP) | 12" | 8 1/4" | 8 1/4" | 5/8" | 1 7/8" | 3" | 266° | 00000000 | 000000 | 00000000 | 000000 |
208/230/460 Volts AC, Three Phase | |||||||||||||||
NEMA 56C | |||||||||||||||
1/3 | 1,725 | 1.5/1.4/0.7 | No | Totally Enclosed Nonventilated (TENV) | 10 1/4" | 8 1/4" | 6" | 5/8" | 1 7/8" | 3" | 266° | 00000000 | 000000 | 000000 | 00 |
230/460 Volts AC, Three Phase | |||||||||||||||
NEMA 56C | |||||||||||||||
1/3 | 1,725 | 1.4/0.7 | No | Open Dripproof (ODP) | 11 1/4" | 8 1/4" | 6 1/4" | 5/8" | 1 7/8" | 3" | 266° | 00000000 | 000000 | 00000000 | 000000 |
US-Made Base/Face-Mount AC Motors



Wound, wired, and assembled in the U.S. These motors are manufactured for durability and include high-quality bearings, so they hold up to occasional overload conditions and spikes in torque. Whether you’re switching between jobs or need flexibility during installation, these motors give you a variety of mounting options. Mount the feet to a flat surface or bolt the face directly to a gearbox, pump, or other machine. You can also do both at once for added stability in applications with high loads or vibration. They’re rated for continuous duty, so they’re often used with equipment that requires constant power, such as fans, pumps, and conveyors.
When pairing with a variable frequency drive (AC motor speed control), choose a three-phase motor that’s inverter rated.
Enclosures that are totally enclosed don’t have vents, so they can be used in damp and dirty environments. They’re not airtight, but since air isn’t flowing inside the enclosure, the motor won’t run as efficiently as it would in an open enclosure. Totally enclosed fan cooled (TEFC) enclosures have an external fan that blows air over the outside of the enclosure to keep the motor cool. Optional drip covers are recommended when your motor will be mounted with the shaft facing down. They attach to the back side of the motor to prevent moisture from pooling on top.
For technical drawings and 3-D models, click on a part number.
Motors | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Shaft | Insulation | Drip Covers | |||||||||||||
Power, hp | Max. Speed, rpm | Full Load Current, A | Inverter Rated | Motor Enclosure Type | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Class | Max. Temp., °F | Each | Each | ||
115/208/230 Volts AC, Single Phase | ||||||||||||||||
NEMA 56C | ||||||||||||||||
1/3 | 1,725 | 6.0/3.6/3.0 | No | Totally Enclosed Fan Cooled (TEFC) | 11 1/2" | 8 1/2" | 8" | 5/8" | 1 7/8" | 3 1/2" | B | 266° | 00000000 | 0000000 | 00000000 | 0000000 |
208/230/460 Volts AC, Three Phase | ||||||||||||||||
NEMA 56C | ||||||||||||||||
1/3 | 1,725 | 1.9/1.6/0.8 | No | Totally Enclosed Fan Cooled (TEFC) | 11 1/2" | 8 1/2" | 6 3/4" | 5/8" | 1 7/8" | 3 1/2" | B | 266° | 00000000 | 000000 | 00000000 | 000000 |
Base/Face-Mount AC Motors



Whether you’re switching between jobs or need flexibility during installation, these motors give you a variety of mounting options. Fix the feet to a flat surface or bolt the face directly to a gearbox, pump, or other machinery. You can also do both at once for added stability in applications with high loads or vibration. These motors are rated for continuous duty, so they’re often used for equipment that requires constant power, such as fans, pumps, and conveyors. They’re also inverter-rated, so you can use them with a variable frequency drive (AC motor speed control).
A totally enclosed fan cooled (TEFC) enclosure means you can install them in damp and dirty environments since they don’t have vents. An external fan blows air over the outside of the enclosure to keep these motors cool. They’re not airtight, but since air isn’t flowing inside the enclosure, the motor won’t run as efficiently as it would in an open enclosure.
These motors have an oversized shaft and high-quality bearings to stand up to heavy and side loads better than even our domestic motors. Densely packed windings and thin laminations ensure the motor stays cool and runs efficiently.
For technical drawings and 3-D models, click on a part number.
Overall | Shaft | Insulation | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Power, hp | Max. Speed, rpm | Full Load Current, A | Inverter Rated | Motor Enclosure Type | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Class | Max. Temp., °F | Each | |
230/460 Volts AC, Three Phase | ||||||||||||||
NEMA 56C | ||||||||||||||
1/3 | 1,735 | 1.1/0.5 | Yes | Totally Enclosed Fan Cooled (TEFC) | 13 7/8" | 9 7/8" | 7 1/8" | 5/8" | 1 7/8" | 3 1/2" | F | 311° | 0000000 | 0000000 |
Compact DC Motors



Power small machinery in spaces where other motors won’t fit. Motors are rated for continuous duty. You can wire for clockwise or counterclockwise shaft rotation; instructions are included.
Use a motor speed control (not included) to adjust motor speed. Use an AC to DC transformer (not included) to convert AC power to DC power.
Square-face motors have a D-profile shaft.
For technical drawings and 3-D models, click on a part number.
Overall | Shaft | Insulation | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Speed @ Continuous Operating Torque | Full Load Current, A | Motor Enclosure Type | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Class | Max. Temp., ° F | Each | |
Square-Face Motors | ||||||||||||
24 Volts DC | ||||||||||||
3,900 rpm @ 94 in.-oz. | 14 | Totally Enclosed Nonventilated (TENV) | 9 1/2" | 4 1/4" | 5" | 0.5" | 1.44" | 1.57" | F | 311° | 00000000 | 0000000 |
Base/Face-Mount DC Motors



With two location options for any-angle mounting, you can put these motors to work in a variety of equipment configurations. Motors are rated for continuous duty and have a keyed shaft that comes with key stock. Wire for clockwise or counterclockwise rotation; instructions are included.
Use a motor speed control (not included) to adjust motor speed. Use an AC to DC transformer (not included) to convert AC power to DC power.
For technical drawings and 3-D models, click on a part number.
Motors | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Shaft | Insulation | Replacement Motor Brushes | ||||||||||||||
Power, hp | Speed @ Continuous Operating Torque | Max. Speed, rpm | Starting Torque, in.-lbs. | Full Load Current, A | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Base Type | Class | Max. Temp., ° F | Each | Pkg. | ||
90V DC | |||||||||||||||||
NEMA 56C—Totally Enclosed Nonventilated (TENV) | |||||||||||||||||
1/3 | 1,750 rpm @ 12 in.-lbs. | 1,783 | 144.3 | 3.2 | 13 1/4" | 6 1/2" | 8 3/4" | 5/8" | 1 7/8" | 3 1/2" | Removable | F | 311° | 0000000 | 0000000 | 00000000 | 000000 |
180V DC | |||||||||||||||||
NEMA 56C—Totally Enclosed Nonventilated (TENV) | |||||||||||||||||
1/3 | 1,750 rpm @ 15.2 in.-lbs. | 1,800 | 285.9 | 1.6 | 13 1/4" | 6 1/2" | 8 3/4" | 5/8" | 1 7/8" | 3 1/2" | Removable | F | 311° | 0000000 | 000000 | 00000000 | 00000 |
Face-Mount Speed-Control Motors
![]() Motor | ![]() Panel-Mount Controller | ![]() |
![]() |
Set and maintain the speed of these motors with the included speed control, which automatically adjusts the power based on feedback from a built-in sensor. These motors combine the speed control characteristics of permanent-magnet brushless DC motors with the convenience of AC power—an integrated inverter means they operate on 120 volts AC. They bolt directly to gearboxes, pumps, and other machinery.
These motors have manual overload protection, which turns them off if they overheat. An LED on the control face indicates when the overload protection is triggered—flip the reset switch to start motors once they cool. The panel-mount controller also lets you turn motors on or off, change the speed, and switch between clockwise or counterclockwise rotation. To create a control station, mount it up to 10 feet from the motor with the included cable.
Rated for continuous duty, these motors can run machines that require constant power, such as fans and conveyors. They have totally enclosed non-ventilated (TENV) enclosures, which don’t have vents, so you can install them in damp and dirty environments. They don’t have a fan, so motors get warmer and run less efficiently than they would in open or fan-cooled enclosures.
For technical drawings and 3-D models, click on a part number.
Overall | Shaft | For Panel Cutout | Insulation | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Power, hp | Max. Speed, rpm | Starting Torque, in.-lbs. | Torque @ Max. Speed, in.-lbs. | Full Load Current, A | Motor Enclosure Type | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Wd. | Ht. | Class | Max. Temp. | Environmental Rating | Each | |
120 Volts AC, Single Phase | ||||||||||||||||||
NEMA 34 | ||||||||||||||||||
1/3 | 1,750 | 13.4 | 13.4 | 8 | Totally Enclosed Nonventilated (TENV) | 8 1/2" | 4" | 4 1/4" | 1/2" | 1.21" | 1.93" | 4" | 2 7/8" | B | 266° | IP50 | 000000 | 000000000 |
1/3 | 3,450 | 6.5 | 6.5 | 4 | Totally Enclosed Nonventilated (TENV) | 7 1/2" | 4" | 4 1/4" | 1/2" | 1.21" | 1.93" | 4" | 2 7/8" | B | 266° | IP50 | 000000 | 00000000 |
Direct-Drive Fan Motors

Since they have fewer moving parts, you can use these direct-drive motors to build fans that require less maintenance than fans with belt-drive motors. Mount them directly to a fan column.
For technical drawings and 3-D models, click on a part number.
Shaft | Overall | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Motor Speed, rpm | Power, hp | Dia. | Lg. | Direction of Operation | Current, A | Voltage | Lg. | Wd. | Ht. | Insulation Class | Overload Protection Type | Each | |
NEMA 48Z—Welded (D-Profile Shaft) | |||||||||||||
Single Phase—Hardwire | |||||||||||||
1,100 | 1/3 | 1/2" | 3 1/4" | Clockwise or Counterclockwise | 4.5 2.3 | 120V AC 240V AC | 10" | 5 5/8" | 8 1/8" | B | Automatic | 0000000 | 0000000 |
1,725 | 1/3 | 1/2" | 3 1/8" | Clockwise or Counterclockwise | 3.6 1.8 | 120V AC 240V AC | 10 1/8" | 5 5/8" | 8 1/8" | B | Automatic | 0000000 | 000000 |
Pedestal Fan Motors




Build your own fan or replace a fan motor. Mount one of these motors directly to a fan column. Four 8-32 threaded mounting studs extend 1" for mounting a fan guard.
View information about motors.
Note: When selecting a fan blade, be sure the rpm and hp are compatible and the shaft diameter of the blade matches the shaft diameter of the motor.
For technical drawings and 3-D models, click on a part number.
Shaft | Overall | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Motor Speed, rpm | Power, hp | Dia. | Lg. | Current, A | Lg. | Ht. | Wd. | Direction of Operation | Service Factor | Mount. Fasteners Included | Mount. Hole Dia. | Features | Specifications Met | Each | |
NEMA 48YZ | |||||||||||||||
120V AC, Single Phase—Hardwire | |||||||||||||||
1,075 | 1/3 | 1/2" | 2 3/8" | 3.8 | 10 11/16" | 10 3/8" | 5 11/16" | Clockwise or Counterclockwise | 1.0 | No | 7/16" | Thermal Overload Protection | UL Recognized Component, CSA Certified | 0000000 | 0000000 |
1,625 | 1/3 | 1/2" | 2 3/8" | 3.4 | 10 11/16" | 10 3/8" | 5 11/16" | Clockwise or Counterclockwise | 1.0 | No | 7/16" | Thermal Overload Protection | UL Recognized Component, CSA Certified | 0000000 | 000000 |
NEMA 56YZ | |||||||||||||||
120V AC, Single Phase—Hardwire | |||||||||||||||
1,625 | 1/3 | 5/8" | 2 3/8" | 3.4 | 10 11/16" | 10 3/8" | 5 11/16" | Clockwise or Counterclockwise | 1.0 | No | 7/16" | Thermal Overload Protection | UL Recognized Component, CSA Certified | 0000000 | 000000 |