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Universal Motors

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A universal motor is called universal because of this flexibility, although they almost always operate on AC power. Read More…

Universal Motors A universal motor is a rotating electric device that is designed with the capacity to effectively operate on either direct current (DC) or alternating current (AC) supply. Both DC and AC motors are widely used yet unlike AC motors, a universal motor can be used for high-speed operations.
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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, and more.

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Electric Motor Solutions $$$

Stratham, NH  |  844-338-8114

When reliability and power are a must, the universal motors you find at ElectroCraft can operate with high efficiency, low voltage, and at a low cost. Applications that our universal electric motors serve include robotics, packaging, automotive, and medical equipment. Electric motor products include the CompletePower™ Plus Universal Drive, complete with a user-friendly configurable interface. For more details, contact ElectroCraft today!

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ElectroCraft, Inc. $$$

Taunton, MA  |  650 524 8822

Maxon Precision Motors, Inc., manufactures small, high-quality, precision DC brush and brushless motors used in medical, semiconductor, test and measurement, robotics, and manufacturing applications, among others. These advanced motors range in size from 4 to 90 mm and are available up to 500 watts. maxon also offers an extensive selection of gearheads, encoders, tachometers, and control electronics to complement its family of motors.

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Maxon Precision Motors, Inc. $$$

Monroe, WI  |  608-325-9161

At Carter Motor, 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 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.

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Carter Motor Company $$$

Preston, CT  |  860-889-8476

Piela Electric, Inc.! Specialists in electric motor and pump service, repair, and replacement. You'll never be just a number with us. We blend technical excellence with the personal attention you expect. Serving our customers is our number one priority at Piela Electric, Inc. We make every effort to get you back on-line efficiently by our pick up and delivery policy and we guarantee all of our work for one year.

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Piela Electric, Inc. $$$

Titusville, FL  |  321-268-5500

Rex Engineering manufactures gear motors, AC motors and DC motors. We also specialize in sub-fractional HP motors and design all products to your custom specifications. We are focused on providing excellent customer service, quality workmanship, competitive pricing, and constant design improvements for more reliable and versatile products. Contact us today for more information.

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Rex Engineering Corp. $$$
placeholder image Electric Motor Solutions ElectroCraft, Inc. Maxon Precision Motors, Inc. Carter Motor Company Piela Electric, Inc. Rex Engineering Corp.

The universal motor is able to operate on alternating current power because of the in sync alternating of the magnetic field and the armature which causes force in a constant direction. However, a universal electric motor offers an advantage over regular AC motors because they have a high starting torque level which is a characteristic of DC motors, as well as high top speed and compact operating designs.

Yet, the motors are still able to be powered by commonly found AC power supplies. Universal motors offer the combination of features and in applications where the combination of high speed operating with light engine weight is desirable, universal motors are an ideal solution. For products such as hairdryers, blenders, power tools and vacuum cleaners, universal motors are suitable to meet the requirements of intermittent high powered usage.

The disadvantage, however, is that a universal motor has a considerably shorter life than other types of miniature motors, and even though it is a simple and reliable design, a universal motor will wear our relatively quickly. For this reason, a universal motor is most often found in AC devices that are only used intermittently such as blenders, vacuum cleaners, power tools, clothes washers, fans, and blow dryers.

These applications require high torque starting speeds but are typically only used for short bursts of time, thus reducing the wear and tear on the engine itself. In higher powered applications, universal motors are also used, such as railway motors for electric system railways, however these motors are typically found in a range less than 1000 watts, therefore they may also be referred to as fractional horse power motors, or FHP motors.

Another useful feature of universal motors, as with some other types of small electrical motors, is that they are able to control the speed through electronic controls and to reverse the direction of an appliance such as a washing machine. On washing machines, as with other domestic appliances, universal motors have to be used within the parameters of their speed and effectiveness, and load weight should be taken into consideration to ensure minimal motor wear, although they will eventually need replacing.

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