在列检作业中,对于危及行车安全的滚动轴承轴端螺母脱落的故障,一般都要在六个月一次的轴箱检查或定期开盖检查时才能发现。由于该故障较隐蔽,因而经常造成列车中途用车或库内临时用车,直接危及行车 In the inspection, the endangering the safety of rolling bearing shaft nut off the failure, usually in six months once the axle box inspection or regular inspection of the lid can be found. As the fault is more subtle, which often results in temporary use of train cars or temporary storage in the train, which directly endangers the traffic