Leading Small Electric Motor Manufacturers

A tiny electric motor is an example of an electromechanical device that converts electrical energy into mechanical energy. The motor’s output energy is used to move materials, power compressors, and rotate fans. Electric motors are powered by alternating current sources like electric generators, power grids, inverters, or direct current sources like batteries, rectifiers, and motor vehicles. Read More…

Small Electric Motors A small electric motor is a fractional horsepower motor that has less than one horsepower, or 745.7 watts, of power. As with other simple electric motors, small electric motors consist of several basic parts: an axle, a metal enclosure, a field magnet, a nylon end cap, a rotor, a coil, and a power supply of some sort.

Since 1963, Dart Controls has been designing and manufacturing some of the world’s most reliable variable speed motor drives, controls and accessories for electric motors. Through continuous innovation, a relentless dedication to the industry, and a commitment to high quality products and dependable delivery Dart Controls has retained the leadership position it established over 60 years ago.

Dart Controls, Inc. $$$

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....

ElectroCraft, Inc. $$$

Quickly rising as the world’s leading motor specialized company, SPG Motor pioneers the fractional horsepower motor market in innovation & advanced quality assurance. All of our fractional horsepower motors are ISO 9001 certified for automation equipment & appliances made by top companies like Whirlpool, Maytag & GE. For more information, contact SPG today!

SPG USA Inc. $$$

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...

maxon $$$

When you choose Composite Motors, you gain access to a reliable and forward-thinking partner in the realm of fractional horsepower motors. Our products are designed to endure, ensuring that your systems operate at their best for years to come. Join us in embracing the power of innovation and quality, as we continue to shape the future of fractional horsepower motors together.

Composite Motors, Inc. $$$
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placeholder image Dart Controls, Inc. ElectroCraft, Inc. SPG USA Inc. maxon Composite Motors, Inc.

small electric motor

Components of Electric Motors

Electric motors are comprised of a rotor, stator, an air gap, windings, and a commutator.

components of a small electric motor


A rotor is a moving component in a motor, generator, or alternator's electromagnetic system. Inside a motor, a rotor will rotate a shaft to generate mechanical energy. Typically, the rotor has conductors positioned to store currents and interact with the stator's magnetic field. When the rotor spins, the magnetic fields and windings will interact and produce torque at the rotor axis.


The motor’s bearings are crucial because they support the rotor's ability to rotate around its axis. By adapting the bearings to the load of the motor, the shaft of the electric motor can be made longer. Overhung loads are those that have load forces applied to the bearing's exterior side.


The stator is a dormant component of the motor's rotational system. It can be found in sirens, biological rotors, mud motors, and generators. A stator is made of permanent magnets, windings, or thin metal sheets known as laminations. These are employed to cut down on energy losses. The rotating armature of a motor is driven by a magnetic field that rotates around the stator.

Air Gap

The air gap in a motor refers to the space between the rotor and stator. The space has the biggest impact on the air gap effect. It is the main cause of the motor's poor power factor. As the distance between the rotor and stator widens, the magnetizing current will grow.


Windings are just wires inserted into the coils. They are encircled by a flexible iron magnetic core to create magnetic poles activated by the current. Copper windings are frequently used in motors because they effectively transport electrical load.


A rotating electrical switch called a commutator reverses the direction of current flow between the rotor and the external circuit. The commutator is constructed using a cylinder that is assembled from several metal contact points on the machine's revolving armature. The commutator, which is made of copper and has the appearance of a half ring, is used to join the brushes to the coil.

How Small Electric Motors Function

An electric motor uses electromagnetic induction to function. A loop is created using a small conducting wire and placed between two magnets. the ends of the loop are then attached to battery connections.

working principle of small electric motor

Small Electric Motor Types

Small electric motors can be categorized based on power source, construction, and application. In addition to AC and DC motors, other available types of motors, include brushed, brushless, 1-phase, 2-phase, or 3-phase, air-cooled/liquid-cooled motors. General electric motors with typical characteristics and dimensions provide adequate mechanical power for industrial use.

  • Small AC Electric Motors
  • Small DC Electric Motors

Small AC Electric Motors

The tiny AC electric motor's primary job is to use electromagnetic induction to convert alternating current to mechanical current. The rotor and stator are the two primary components. The stator is the motor's stationary component, while the rotor spins. Small AC electric motors can have one or three phases. Three-phase motors are used for large power conversion, while single-phase motors are used for minor power conversion.

Small DC Electric Motors

A small DC electric motor is an electric rotational device that transforms DC energy into mechanical energy. The majority of motors rely on the magnetic field's generated forces. These motors' internal mechanisms, which alter the direction of current flow, are either electrical or electromechanical. The motor speed can be regulated by changing the potency of the current or the supply voltage within the field windings.

Small Electric Motor Advantages

  • In comparison to other engines powered by fossil fuels, the price of these motors is low. The horsepower (hp) rating, however, is comparable for both.
  • Electric motors have a longer lifespan.
  • Electric motors can be automated for specific uses.

Uses For Electrical Motors

The following are some of the applications for electrical motors.

  • These motors are used in rolling mills, compressors, alternators, fans, blowers, pumps, turbines, ships, tools used in machines, movers, and paper mills.
  • These are the most crucial parts of automobiles, home appliances, and HVAC (heating, ventilation, and air conditioning) equipment.
  • Industrial machinery such as mills, forklift trucks, letches, robots, winches, and hoists employ small electric motors.

Choosing the Proper Small Electric Motor Manufacturer

To ensure you have the most productive outcome when purchasing small electrical motors from a small electric motor manufacturer, it is important to compare several companies using our directory of small electric motor manufacturers. Each small electric motor manufacturer has a business profile page highlighting their areas of experience and capabilities, along with a contact form to directly communicate with the manufacturer for more information or request a quote. Review each small electric motor business website using our proprietary website previewer to quickly learn what each company specializes in. Then, use our simple RFQ form to contact multiple small electric motor manufacturers using the same form.

Small Electric Motors Informational Video


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