DC motor is operating?

DC motor is a motor that converts DC electric energy into mechanical energy. It is widely used in electric drive due to its good speed regulation performance. Because of this, we have to do a good job in the installation and maintenance of the motor.

DC motor is in use, if you do not pay attention to maintenance, it will cause the bearing to be too tight or damaged. In order to avoid this situation, certain measures need to be taken. Then what is the reason for the DC motor bearing to be too tight?

the operator is afraid of the car's waste end cover bearing room, the DC motor repair should make the bearing outer ring and end cover fit tolerance is appropriate. The lower limit of the tolerance range is preferred, and the car is unwilling to reach the upper limit, which makes the diameter of the bearing chamber smaller and increases the interference with the outer ring of the bearing. In addition, the repair workers do not know enough about the advantages of reducing the noise of the bearings of DC motors for appropriately reducing the maximum interference of the matching tolerance. For example, when disassembling the motor bearing, it is found that the outer ring of the bearing and the end cover are very well matched, and it is mistaken for the bearing to be too loose. Therefore, the end cover is even replaced, or the bearing is replaced and the diameter of the outer ring is enlarged. The most common method is to enlarge the bearing chamber of the end cover and insert the sleeve to make the bearing and the bearing chamber of the end cover closely matched, as a result, the bearing noise increases and the bearing heats up after the motor is repaired.

about the bearing is too tight, everyone should pay attention to the operation method when carrying out the operation and maintenance of the equipment. if you don't know the situation, you should consult the manufacturer for operation. you can't operate at will, causing damage and failure of the equipment. In order to further understand the defects in the operation of the DC brushless geared motor, an inspection test can be done before disassembly when conditions permit.