What should we notice when assembling axial cylindrical roller bearings?

1.
Assembly method of axial cylindrical roller bearings: Because axial cylindrical roller bearings are high-precision products, improper assembly can easily cause damage to the bearing raceway, resulting in damage to the thrust roller bearings. The thrust roller bearing should have a special mold when assembling, and cannot be beaten at will. When pressing into the shaft, only a small circle can be stressed, and when a large circle is pressed, only a large circle can be stressed. When assembling, it is required to use air pressure or hydraulic pressure. When pressing, the upper and lower molds should be out of the horizontal state. If it is inclined, the bearing channel will be damaged due to the force, and the thrust roller bearing will have guiding noise.

2.
Prevention of foreign objects in assembly: When the axial cylindrical roller bearing is installed on the rotor for dynamic balance, it is easy for the iron scraps generated during dynamic balance to enter the thrust roller bearing, so it is best to do dynamic balance before installing the thrust roller bearing. For the convenience of assembly, some manufacturers apply some oil or grease to the chamber of the axial cylindrical roller bearing for lubrication, but it is often difficult for operators to control the amount. If there is a lot of oil or grease in the chamber of the axial cylindrical roller bearing , it is easy to enter the thrust roller bearing along the shaft when the bearing rotates. It is best not to apply oil or grease to the bearing chamber. If it is necessary, it must be controlled that there is no accumulation in the thrust roller bearing chamber.

3.
Prevention of paint rust: The characteristic of paint rust is that it occurs frequently in the sealed motor. The motor has a good sound during assembly, but after a period of time in the warehouse, the abnormal noise of the motor becomes very large. Remove the axial cylindrical roller bearings Severe rust. In the past, many manufacturers thought it was the bearing problem. After our continuous publicity, the motor factory has realized that the main problem is the insulating paint. This problem is mainly because the acid substances volatilized from the insulating paint form corrosive substances under a certain temperature and humidity, and the axial cylindrical roller bearings will be damaged after the channel is corroded. The problem can only be to choose a good insulating paint, and assemble it after drying and ventilating for a period of time.