Variable-Speed Motors | McMaster-Carr

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282 Products

About Electric Motors

When replacing a motor, use the information on your motor’s nameplate to guide your selection.

Speed-Control Motors

Maintain speed automatically. These motors come with a speed control with a feedback sensor that adjusts power to maintain your set speed.

AC Electric Motors

U.S.-Made Base-Mount AC Motors

Wound, wired, and assembled in the U.S. Bolt the base of these motors to any flat surface and connect the shaft to your load.

U.S.-Made Face-Mount AC Motors

Wound, wired, and assembled in the U.S. Also known as C-face motors, they bolt directly to gearboxes, pumps, and other machinery.

U.S.-Made Base/Face-Mount AC Motors

Wound, wired, and assembled in the U.S. Whether you’re switching between jobs or need flexibility during installation, these motors give you a variety of mounting options.

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.

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.

Sanitary Washdown Base/Face-Mount AC Motors

For versatility in food and sanitary lines, these motors mount by their feet or bolt directly to equipment to power pumps and other machines.

Sanitary Washdown Face-Mount AC Motors

Bolt these motors directly to conveyors and other machines to power equipment on food and sanitary lines.

Face-Mount AC Motors

Bolt these motors directly to gearboxes, pumps, and other machinery.

Base/Face-Mount AC Brake Motors

When these motors lose power, a brake engages to hold your equipment’s position, unlike standard AC motors. Mount them from the base or face.

AC Servomotors

Good for high speeds with fast accelerations, these servomotors are often used in automated assembly, material handling, and packaging applications.

AC Electric Gearmotors

AC Gearmotors

Turn speed into torque with these AC-powered gearmotors—they combine a motor and a speed reducer into one.

Speed-Control AC Gearmotors

Start, stop, reverse direction, and control the speed of these gearmotors from the mounted keypad. These gearmotors are both a motor and speed reducer in one to lower speed while increasing torque.

Speed-Control Right-Angle AC Gearmotors

A good solution for tight spaces, these gearmotors let you control the start, stop, rotation direction, and speed while transmitting motion at a 90° angle from the motor, so you can mount them alongside your application.

Right-Angle AC Gearmotors

A motor and speed reducer in one, these gearmotors have hypoid gears for energy-efficient operation.

Washdown Right-Angle AC Gearmotors

Run high-torque, low speed applications in cramped areas that are frequently hosed down. To save space, these transmit motion at a 90° angle from the the body of the motor, so they're positioned alongside equipment when mounted.

Washdown AC Gearmotors

IP rated, these gearmotors stand up to high-pressure washdowns. They combine a motor with a speed reducer to lower speed while increasing torque.