(3) Other accessories of phase asynchronous motor
1. End cover: supporting function.
2. Bearing: connect the rotating part and the stationary part.
3. Bearing end cover: protect the bearing.
4. Fan: to cool the motor.

The DC motor adopts an octagonal full lamination structure, which not only has a high space utilization rate, but also can withstand pulsating current and rapid load current changes when a static rectifier is used for power supply. DC motors generally do not have series windings, and are suitable for automatic control technologies that require forward and reverse rotation.

According to user needs, it can also be made into a series winding. Motors with a center height of 100-280mm have no compensation windings, but motors with a center height of 250mm and 280mm can be made with compensation windings according to specific conditions and needs, and motors with a center height of 315-450mm have compensation windings. The overall installation dimensions and technical requirements of motors with a center height of 500～710mm are in line with IEC international standards, and the mechanical dimensional tolerances of the motors are in line with ISO international standards.