There are many reasons for the damage of the bearing. Only after familiarizing with the cause of the damage of the TIMKEN bearing can the corresponding preventive measures be taken:
(1) Selection and control of shaft and bearing tolerances of TIMKEN bearings: After the bearing is pressed into the TIMKEN bearing, it should be flexible and unobstructed. If the obvious rotation is not flexible, it means that the size of the shaft is too large and the tolerance is lowered. If the spherical roller bearing is pressed into the shaft and turned by hand, there is a clear "sand" feeling, which may be that the tolerance of the shaft is too large or the roundness of the shaft is not good. Therefore, the roundness should also be controlled when controlling the shaft and bearing chamber tolerances.
(2) Bearing assembly method: Because the bearing is a high-precision product, if the assembly is improper, it is easy to damage the bearing channel, resulting in bearing damage. Spherical roller bearings should have a special mold when assembling, can not be beaten at will, only a small circle of force when pressing the shaft, only a large circle when pressing the large circle. Air pressure or hydraulic pressure is required for assembly. The upper and lower molds should be outside the horizontal state during press-fit. If tilted, the TIMKEN bearing channel will be damaged due to the force, which will cause the bearing to produce a sound. TIMKEN bearing damage analysis and preventive measures method Timken bearing distributor.
(3) Prevention of paint rust: The characteristic of paint rust is that it is often in a sealed motor. The sound of the motor is very good when assembled. However, after some time is put in the warehouse, the abnormal noise of the motor becomes very large, and the bearing is removed. There is severe rust. The main problem is that the acidic substance volatilized by the insulating paint forms a corrosive substance under a certain temperature and humidity, and the TIMKEN bearing channel is corroded, which causes the spherical roller bearing to be damaged. The problem can only be achieved by selecting a good insulating varnish and venting it after drying for a while.
