一般，如果正確使用軸承，可以使用至達到疲勞壽命為止。但會有意外過早地損傷，不能耐于使用的情況。這種早期損傷，與疲勞壽命相對，是被稱做故障或事故的品質使用限度。多起因于安裝、使用、潤滑上的不注意，從外部侵入的異物，對于軸、外殼的熱影響之研究不夠充分等。
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.
關于軸承的損傷狀態如：滾子軸承的套圈、擋邊的卡傷，作為原因可考慮，潤滑劑不足、不適合、供排油構造的缺陷、異物的侵入、軸承安裝誤差、軸的撓曲過大，也會有這些原因重合。
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，僅調查軸承損傷，很難得知損傷的真正原因?？墒?，如果知道了軸承的使用機械、使用條件、軸承周圍的構造、了解事故發生前后的情況，結合軸承的損傷狀態和幾種原因考察，便可以防止同類事故再發生。
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.
