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  2. DC motor - Wikipedia

    en.wikipedia.org/wiki/DC_motor

    This has restricted the practical application of this type of motor. Ball bearing motor – A ball bearing motor is an unusual electric motor that consists of two ball bearing-type bearings, with the inner races mounted on a common conductive shaft, and the outer races connected to a high current, low voltage power supply. An alternative ...

  3. Universal motor - Wikipedia

    en.wikipedia.org/wiki/Universal_motor

    The large brown molded-plastic piece in the foreground supports the brush guides and brushes (both sides), as well as the front motor bearing. The universal motor is a type of electric motor that can operate on either AC or DC power and uses an electromagnet as its stator to create its magnetic field. [1] It is a commutated series-wound motor ...

  4. Electric motor - Wikipedia

    en.wikipedia.org/wiki/Electric_motor

    An industrial electric motor . An electric motor is a machine that converts electrical energy into mechanical energy.Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft.

  5. Ball bearing motor - Wikipedia

    en.wikipedia.org/wiki/Ball_bearing_motor

    A ball bearing motor is an unusual electric motor that consists of two ball-bearing-type bearings, with the inner races mounted on a common conductive shaft, and the outer races connected to a high current, low voltage power supply. An alternative construction fits the outer races inside a metal tube, while the inner races are mounted on a ...

  6. Traction motor - Wikipedia

    en.wikipedia.org/wiki/Traction_motor

    A ZQDR-410 traction motor (the large, dark component on the axle with small ventilation holes) A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, or electric multiple unit trains.

  7. Electrostatic motor - Wikipedia

    en.wikipedia.org/wiki/Electrostatic_motor

    An electrostatic motor or capacitor motor is a type of electric motor based on the attraction and repulsion of electric charge. An alternative type of electrostatic motor is the spacecraft electrostatic ion drive thruster where forces and motion are created by electrostatically accelerating ions.