As for the damage development state of the bearing, such as the clamping damage of the ring and flange of the roller bearing, as a reason, we can consider that the lubricant is insufficient, unsuitable, the defect of the oil supply and drainage structure, the invasion of foreign matters, the systematic error of bearing installation, and the excessive deflection of the shaft. The reason for these problems is coincidence.
Therefore, it is difficult to know the real cause of damage only through investigation. However, if we know the use of machinery, the use of environmental conditions, the structure around the bearing, understand the situation before and after the change of safety accident problems, combined with the damage state of the bearing and several main causes, we can prevent similar accidents from happening again.
Generally, if the bearing is used correctly, it can be used to achieve fatigue life. But there will be accidents. We will damage it too early and can't stand the use. This early injury is relative to the fatigue life, which is called the quality of quality use failure or accident. Most of them are caused by carelessness in installation, use and lubrication, foreign objects invading from the outside, and insufficient research methods on the thermal effects of shafts and shells.
