(3) Other accessories for three-phase asynchronous motor
1. End cap: support function.
2. Bearing: Connect the rotating part and the moving part.
3. Bearing end cover: protect the bearing.
4. Fan: Cool the motor.
Second, the DC motor adopts an octagonal full laminated structure, which not only has high space utilization, but also can withstand pulsating current and rapid load current change when powered by a static rectifier. DC motors generally do not have series-excited windings and are suitable for use in automatic control techniques that require forward and reverse motor rotation. It can also be made with series excitation winding according to user needs. The motor with a center height of 100 to 280 mm has no compensation winding, but the motor with a center height of 250 mm and 280 mm can be made with a compensation winding according to the specific conditions and needs. The motor with a center height of 315 to 450 mm has a compensation winding. The shape and technical requirements of the motor with a center height of 500-710mm are in line with the IEC international standard, and the mechanical dimensional tolerance of the motor conforms to the ISO international standard.
