Variable Speed Motors

A reliable source for Fractional Horsepower Motor information and leading Fractional Horsepower Motor Companies & Manufacturers.

The capacity for an engine to adjust speeds is an important feature, especially for applications in which variable speed motors are commonly used such as pumps, elevators, conveyors and machining tools. Read Moreā€¦

Variable Speed Motors A variable speed motor uses VFDs, or variable-frequency drives, to direct the rotational speed of an AC electric motor. A variable speed motor will do this by controlling the frequency of the power being supplied to the universal motor from an electrical source, thus controlling its output power.

Leading Manufacturers

Mankato, MN  |  612-746-7624

At Electric Motor solutions, our goal is to provide the best motors and equipment to meet the needs of your application. Products include linear actuators, electric motors, speed reducers, custom motors, vacuum cleaner motors, AC motors, brushless controller/drives and more. Our extensive network of 1st class manufacturing partners allows us to offer time and money saving solutions.

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Electric Motor Solutions $$$

Stratham, NH  |  844-858-5030

As a manufacturer of both custom and standard fractional horsepower motors, ElectroCraft makes it our goal to exceed the expectations of our customers at a low cost, no matter where they are. ElectroCraft is headquartered in New Hampshire, and has facilities operating throughout the US, UK, Germany, and China. Our products can be found in applications ranging from office equipment to medical devices to aircraft. Contact us today and tell us how we can help with your own application!

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ElectroCraft, Inc. $$$

Warren, IL  |  866-745-2100

Carter Motor has over 70 years of experience in quality motor manufacturing. Some of the motors manufactured include, AC universal motors, small motors, DC universal motors, DC permanent magnet motors, DC shunt wound motors and gearmotors, along with many others. All of Carter Motor products are designed and assembled in the United States by hard-working employees. From engineers to shipping clerks, the staff takes pride in every part of the process. Carter Motor is also ISO 9001:2000 certified.

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Carter Motor Company $$$

Mauston, WI  |  888-467-8288

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. In business since 1913, we have continued to manufacture our custom high-quality UL listed OEM motors. Dumore DC motors and gear motors are designed for complete, cost effective customization to meet your exact requirements or work with our team for a custom solution!

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Dumore Corporation $$$

Valencia, CA  |  800-232-2612

Our products serve many different industries including defense, industrial machinery, medical devices, marine, automotive, air traffic management as well as a broad variety of others! We strive to treat each and every customer as if they are number one in order to exceed customer expectations and to keep them coming back to us for all of their needs! To receive more information on what we may be able to do for you visit us on the web today to get started!

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Specialty Motors, Inc. $$$
placeholder image Electric Motor Solutions ElectroCraft, Inc. Carter Motor Company Dumore Corporation Specialty Motors, Inc.

Three-phase motors are most commonly used in variable speed motors, although the small electric motor itself can be a single-phase unit. They are widely used for fractional horsepower, or FHP motor applications because of their ability to control voltage and output current. A variable speed motor is often used in heating and cooling ventilation applications.

Variable Speed Brushless Type DC Motor Variable Speed Motors - Electric Motor Solutions

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. The speed in a variable speed motor is dependent on the number of poles or winding sets that are built into the motor itself, allowing the speed to increase or decrease in stages. The progressive movement towards high speed eliminates noisy start up sound and reduces wear on components. The variation of speed also allows for precise control of airflow.

Variable speed motors are typically simple to design and fabricate and are an affordable option for most manufacturers. Consisting of a small motor, a controller and a types of interface, they offer reliable and low maintenance options as there are less replaceable parts than other types of motors. The metal bearings of the motor may need to be replaced after an extended period of time as these components are inevitably subject to wear and tear.

There are numerous advantages to implementing the use of small electric motors and they are used in a wide variety of applications in almost every industry. A variable speed electric motor will create no waste emissions and improve air quality. They are cleaner and less expensive to run than fuel-powered motors and because of their efficiency, variable speed motors also use less electricity on average than a fixed speed motor, thus further saving operating costs for a manufacturer.

They are the preferred motor of choice for many appliances in both commercial and domestic applications where AC power is readily available such as washers, dryers, fans, vacuum cleaners and air-conditioning units.

Variable Speed Motors Informational Video