1. Selection and control of tolerance of thrust roller bearing chamber: the thrust roller bearing should rotate flexibly without block feeling after being pressed into the thrust roller bearing. If there is obvious rotation is not flexible, it indicates that the shaft size is too large, the tolerance should be lowered. If the thrust roller bearing is pressed into the shaft and rotated by hand, there is an obvious "rustling" feeling, it may be that the tolerance of the shaft is too large or the roundness of the shaft is not good. Therefore, it is necessary to control roundness when controlling tolerance of shaft and thrust roller bearing chamber. Many domestic manufacturers only control tolerance, but do not control roundness.

2. Assembly method of thrust roller bearings: Because thrust roller bearings are high-precision products, improper assembly is easy to cause damage to the groove of thrust roller bearings, resulting in damage to thrust roller bearings. Thrust roller bearings should have special molds during assembly, which can not be knocked at will. When pressed into the shaft, only a small circle can be stressed, and only a large circle can be pressed. The assembly requires the use of air pressure or hydraulic pressure, the upper and lower die should be outside the horizontal state, such as tilt will lead to the thrust roller bearing groove due to force damage, and make the thrust roller bearing ring.

3, the assembly of foreign body prevention: thrust roller bearing installed on the rotor to do dynamic balance is easy to dynamic balance generated when the iron filings into the thrust roller bearing, so it is best to load thrust roller bearing before doing dynamic balance. Some manufacturers in order to facilitate assembly, assembly in the thrust roller bearing room coated with some oil or grease lubrication effect, but often the operator is difficult to control the amount of good, if the oil or grease in the thrust roller bearing room more, when the thrust roller bearing rotation is easy to enter the thrust roller bearing along the shaft. Thrust roller bearing room is best not coated with oil or grease, if not coated, to control shall not be left in the thrust roller bearing room.

4. Prevention of paint rust: paint rust is characterized by many sealed motors. The sound of the motor is very good during assembly, but after some time in the warehouse, the abnormal sound of the motor becomes very large, and there is serious rust when the thrust roller bearing is removed. Many manufacturers used to think that thrust roller bearings were the problem. After our continuous publicity, electrical manufacturers have realized that the main problem is insulation paint. This problem is mainly due to the formation of corrosive substances in a certain temperature and humidity caused by the evaporation of acidic substances from the insulating paint, which corroded the thrust roller bearing channel and led to the damage of the thrust roller bearing. This problem can be to choose good insulation paint only, be in after drying ventilated assembly after period of time