Method for judging fault of deep groove ball bearing

How to judge whether deep groove ball bearings are faulty? Inspection of deep groove ball operation. In the operation of deep groove ball, it should be carefully observed and listened to whether there is abnormal noise in the part of double row angular contact ball bearing. When checking, a screwdriver head can be placed on the outside of the bearing end cover and beside the handle ear. If the sound of "grunt" and "grunt" is heard, it indicates that the deep groove ball bearing is faulty. If it is impossible to determine whether the deep groove ball bearing is faulty, the deep groove ball load can be removed, the power operation, hear the sound of the bearing, and then power off, such as the noise disappears, it is not the fault of the deep groove ball bearing.

If the noise still exists, it can be determined as bearing failure. Inspection of bearing heating. There are many reasons for bearing fever, and deep groove ball fever will also be transmitted to the bearing part, and bearing fever will also be transmitted to the housing. Therefore, it is not simple to determine whether the bearing is heating. Check the state of raceway surface, rolling surface, mating surface, cage wear, the increase of clearance of double row angular contact ball bearings and the damage anomaly of irrelevant dimensional accuracy reduction. Non-separated small ball bearings, then use one hand to support the inner ring level, rotating the outer ring to confirm whether it is smooth. Because large bearings can not be rotated by hand, pay attention to check the appearance of the rolling body, raceway surface, cage, side surface and so on. The higher the importance of deep groove ball bearings, the more carefully they must be checked. In our use of bearings, we must regularly maintain and repair bearings, so that not only can maintain the performance of bearings, but also prolong the life of bearings