Home > Tech > Some other precautions for using INA bearings are as follows

Some other precautions for using INA bearings are as follows

wallpapers Tech 2021-03-01

INA bearing assembly method

Because INA bearings are high-precision products, improper assembly can easily damage the INA bearing channel, resulting in INA bearing damage. INA imported bearings should have special molds during assembly, and can not be knocked at will. When pressing into the shaft, only small circles can be used to force, and when pressing large rings, only large rings can be used. Air pressure or hydraulic pressure is required during assembly. During press-fitting, the upper and lower molds should be outside the horizontal state. If inclined, the INA bearing channel will be damaged due to force, and the INA bearing will produce a noise.

Prevention of assembly foreign objects

When the INA bearing is mounted on the rotor for dynamic balancing, it is easy for the iron chips generated during dynamic balancing to enter the INA bearing, so it is best to do dynamic balancing before installing the INA bearing. Some manufacturers apply some oil or grease to the INA bearing room for lubrication during assembly, but it is often difficult for the operator to control the amount. If oil or grease accumulates in the INA imported bearing room, the INA When the bearing rotates, it is easy to enter the INA bearing along the shaft. Japan INA bearing room is best not to be coated with oil or grease, if it is not coated, it must be controlled not to accumulate in the INA bearing room.

Prevention of paint rust

The characteristic of paint rust is that it is frequently used in sealed motors. The motor sounds very well during assembly, but after being placed in the warehouse for some time, the abnormal noise of the motor becomes very large, and there is a serious rust phenomenon when the INA bearing is removed. In the past, many manufacturers would think that it was the problem of INA bearings. After our continuous promotion, now the motor factory has realized that it is mainly a problem of insulating paint. This problem is mainly due to the formation of corrosive substances by the acidic substances volatilized from the insulating paint at certain temperature and humidity. Corrosion of the INA imported bearing channels leads to damage of the INA bearings. At present, the problem can only be to choose good insulating paint and assemble it after drying for a period of time.


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Tag: INA bearings