JL-601诊断系统采用振动检测的方法检测机车走行部轴承,在各机务段均有使用,发挥了很好的效果。在判断轴箱轴承故障上,现场比较容易掌握,这里不再详述。本文重点阐述在判断牵引电机轴承故障的一些经验和成功案例。牵引电机轴承故障主要表现为滚子裂纹、外圈剥离和内套剥离。1牡 JL-601 diagnostic system uses the vibration detection method to detect locomotive running bearing, are used in the locomotive depot, played a very good effect. In determining the axle box bearing failure, the scene is easier to grasp, not elaborate here. This article focuses on some of the experience and success stories in judging traction motor bearing failures. Traction motor bearing failure mainly for the roller crack, the outer ring stripping and inner stripping. 1 Mu