一、目前存在的问题牵引电机轴承是保证电机正常运转的重要部件之一,机车牵引电机轴承发生故障往往会造成机破事故,使运输阻断。轴承损坏通常还引起拉轴、轴弯、端盖变形等其他故障,造成较大的修程。我段近年来在204电机的故障中,轴承的故障约占7～8％,如1981年为8.38％,1982年为7.69％,1983年为7.29％。这些数值和全国统计204电机轴承平均故障比例相近。1983年 First, the existing problems Traction motor bearings is to ensure the normal operation of the motor one of the important components, locomotive traction motor bearing failure will often lead to machine broken accident, so that the transport block. Bearing damage is usually caused by pull shaft, shaft bending, end caps deformation and other failures, resulting in greater repair. In the past few years, in our department, motor failure in 204 was about 7 ~ 8%, such as 8.18% in 1981, 7.79% in 1982 and 7.29% in 1983. These values ​​and national statistics 204 motor bearing the average fault ratio similar. 1983