货车滚动轴承内部故障是行车安全的重大隐患.定期检修时如何对不分解的轴承进行有效诊断,一直是车辆部门攻关的重点课题.由于缺少对轴承故障机理的认识,缺少故障诊断的方式方法,造成故障轴承投入使用,引起行车事故时有发生.现行的防范措施一是手工转动检查,靠经验判断;二是利用 The internal fault of truck rolling bearing is a major hidden danger of driving safety.How to diagnose undisturbed bearing effectively during regular maintenance has been a key task in the research of the vehicle department.Because of the lack of understanding of the fault mechanism of the bearing and the lack of fault diagnosis methods and methods Fault bearing put into use, causing traffic accidents have occurred. The current preventive measures First, manual rotation inspection, judged by experience; the second is to use