1. Rotor: The rotor is the rotating part of the motor, usually composed of a set of conductive coils or magnets. When current passes through the rotor, it interacts with the stator to generate electric force.
2. Stator: The stator is the stationary part of the motor, usually consisting of a set of stator coils or magnets. The stator coils usually consist of windings and an iron core to generate a magnetic field.
3. Brushes and commutators: Brushes and commutators are key components of DC motors. They are used to change the direction of the current so that the rotor can continue to rotate. The contact point between the brush and the commutator transfers the current to the rotor.
4. Bearings: Bearings are used to support the shaft between the rotor and the stator to ensure the smooth operation of the motor.
5. Casing: The casing is the protective shell of the motor, which is used to protect the internal components from the external environment.
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