一般，如果正确使用轴承，可以使用至达到疲劳寿命为止。但会有意外过早地损伤，不能耐于使用的情况。这种早期损伤，与疲劳寿命相对，是被称做故障或事故的品质使用限度。多起因于安装、使用、润滑上的不注意，从外部侵入的异物，对于轴、外壳的热影响之研究不够充分等。
Generally, if the bearing is properly used, it can be used until fatigue life is reached. But there will be accidents too early to damage, and can not be used. This early damage, relative to fatigue life, is used as the quality limit of failure or accident. Because of the neglect of installation, use and lubrication, the foreign bodies intruded from the outside, and the insufficient research on the heat effect of the shaft and shell, etc.
关于轴承的损伤状态如：滚子轴承的套圈、挡边的卡伤，作为原因可考虑，润滑剂不足、不适合、供排油构造的缺陷、异物的侵入、轴承安装误差、轴的挠曲过大，也会有这些原因重合。
As for the damage state of the bearing such as: the ring of roller bearing, the jam of the flange, as the reason can be considered, insufficient lubricant, inappropriate, the defect of oil supply and drainage structure, invasion of foreign bodies, bearing installation error, shaft deflection is too large, there will also be overlap of these reasons.
因此，仅调查轴承损伤，很难得知损伤的真正原因。可是，如果知道了轴承的使用机械、使用条件、轴承周围的构造、了解事故发生前后的情况，结合轴承的损伤状态和几种原因考察，便可以防止同类事故再发生。
Therefore, it is difficult to know the real cause of damage only by investigating bearing damage. However, if we know the use of the bearing machinery, use conditions, the structure around the bearing, understand the situation before and after the accident, combined with the damage state of the bearing and several reasons for investigation, we can prevent similar accidents.
