Motor accessories refer to the parts of the motor assembled in the motor manufacturer for the original parts of the motor, due to improper use or damage caused by wear and tear replacement parts called motor accessories. General parts life is not as long as the original life. Motor accessories can be divided into five parts. The classification of motor accessories can probably be classified according to the components of the motor, which can be divided into motor stator, motor rotor, stator winding, Motor Housing, end cover, motor blade, bearings and other parts. It can be manufactured by CNC engraving, Sand Casting, transparent acrylic(PMMA/PC) 3D Printing.

The working principle of the DC generator is that the alternating electromotive force induced in the armature coil depends on the commutator with the commutation of the brush, so that it becomes a direct current electromotive force when it is drawn from the end of the brush.
The direction of the induced electromotive force is determined according to the right hand rule (the magnetic induction line points to the palm, the thumb points to the direction of the conductor, and the other four fingers point to the direction of the induced electromotive force in the conductor).
Working principle of DC motor
The direction of the conductor force is determined by the left hand rule. This pair of electromagnetic forces form a torque acting on the armature, this torque is called electromagnetic torque in the rotating motor, the direction of the torque is counterclockwise, trying to make the armature turn counterclockwise. If this electromagnetic torque can overcome the resistance torque on the armature (such as the resistance torque caused by friction and other load torque), the armature can be rotated counterclockwise.
Dc motor is a motor that relies on DC operating voltage, which is widely used in radio recorders, video recorders, DVD players, electric shavers, hair dryers, electronic watches, toys and so on.

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