The usual reasons of abrasion of electric motor crankshaft are in the following: unreasonable assembly, unreasonable key assembly as well as the spoilage of electric motor bearings.
常见的电动机轴颈磨损原因：装配不合理、键装配不合理、电动机轴承损坏。
The motor bearings brushes electric rings bolts, ventilation and filter dust unit are checked before operating.
使用中应检查电动机、轴承、电刷与集电环、螺栓、通风、滤尘器等情况。
This paper introduces the dynamic te sting method for the faults of traction motor bearings of electric loco-motive by using vibrating diagnosis.
介绍了采用振动诊断技术，对机车牵引电机轴承故障进行动态检测的方法。
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