Variable Speed Motor

Find variable speed motors including variable speed electric motors, variable speed AC motors, variable speed DC motors and more. Use the time-saving Request for Quote tool to submit your inquiry to all the variable speed motor manufacturers and suppliers you select.

Dumore Corporation is a leading designer of DC motors, custom fractional horsepower motors, gear motors and universal electric motors. Our high-quality fractional motors are used in a variety of applications and markets. We are committed to serving the needs of our customers. In business since 1913, we have continued to manufacture our custom high-quality UL listed OEM motors.
Governed variable speed motors, universal motors & fractional horsepower motors define Lee Engineering. Our variable speed motors have high starting torque & infinite speed control functioning under adverse conditions. Choose from our cost-effective gear reduction models which have defined speed & torque ranges. Our accurate/dependable variable speed motors are unaffected by voltage fluctuation.
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For almost a century, Bodine Electric has manufactured the industry`s leading & largest line of stock & custom AC, DC & Brushless DC fractional horsepower electric motors, gear motors & controls. Bodine`s high-quality, competitively priced motors are available from a national distributor network. Our Bodine gearmotor components can also be modified. Choose from over 1,000 standard FHP gearmotors.
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OEM manufacturer of 3.3", 3.6" & 6" diameter PMDC motors, 12 to 240 volts, 1/50HP to 5HP, 400 to 10,000RPM, battery or rectified AC powered, variable speed & reversible in standard or custom designs for OEMs worldwide. Our fractional motors are built to customer specification using up-to-date technology. Fractional horsepower motor maker MET Motors provides reliable high performing motors.
Merkle-Korff Industries.
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Elk Grove Village, IL
847-439-3760
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Merkle-Korff offers a broad range of sub-fractional horsepower motors and gear motors. Products include AC and DC (brush and brushless) motors & small motors (less than 1/10th horsepower). We provide application engineering, technical support & value-added assembly, both domestic & internationally. Since 1911 we have been providing reliable sub-fractional motors. ISO 9001/2000 registered.
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Carter Motor has over 70 years of experience in quality motor manufacturing. Some of the motors we manufacture include AC universal motors, small motors, DC universal motors, DC permanent magnet motors, DC shunt wound motors, gearmotors, DC permanent magnet tach generators & much more. ISO 9001:2000 certified. Our 75-year-old company is the choice of power for quality rotary equipment.
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Industry Information

Variable Speed Motor

A variable speed motor uses VFDs, or variable-frequency drives, to direct the rotational speed of an AC motor. A variable speed motor will do this by controlling the frequency of the power being supplied to the motor. The motor itself can be a single-phase unit, but three-phase induction motors are most commonly used in variable speed motors.

A variable speed motor is often used in heating and cooling ventilation applications. In such applications, the motor gradually increases to meet its maximum speed rather than starting at its maximum (and only) speed, like fixed speed motors. This progressive movement towards high speed eliminates noisy startup sound and reduces wear on components. The variation of speed also allows for precise control of airflow.

A variable speed electric motor is used in a wide variety of applications in almost every industry because they are cleaner and less expensive to run than fuel-powered motors. Because of their efficiency, variable speed motors also use less electricity on average than a fixed speed motor. A variable speed electric motor will create no waste emissions and improve air quality.