1. Select high-quality bearings. The matching between the bearing and the shaft or between the bearing and the bearing seat should be appropriate, and the temperature and time when the bearing is shrink-fit should be well controlled.
2. Poor rotor dynamic balance is the main cause of mechanical noise, so it is necessary to improve the dynamic balance inspection accuracy of the rotor, minimize the influence of eccentricity, and ensure the concentricity of the coupling when the DC gear motor is installed.
3. The bearing grease should be of suitable type and free of impurities. The amount of grease applied to the bearing cavity should be 1/3-2/3 of the inner space of the bearing cavity.
4. When assembling the bearing by using the shrink sleeve method, carefully check the matching size of the bearing and the journal in advance. Because the shrink sleeve is different from the cold sleeve, it is difficult to find the tolerance and tolerance of the journal and the bearing during the process of inserting the bearing into the bearing. Whether the degree of interference is appropriate. After the bearing is shrink-fitted, the DC gear motor should not be moved or other accessories installed to prevent the bearing from shifting.
www.dw-motor.com