在机械传动中，安装在传动轴上的轴承常因长期使用、润滑不良或配合过紧卡死，或因轴承不在同一轴线位置上而造成轴承内圈与轴产生相对位移，时间一长，轴颈被严重房小，可能引起传动轴转动失灵进而造成停产。以往遇到这种情况，通常是将旧轴拆下换上新轴。这样造成很大的材料 In the mechanical transmission, the bearings installed on the transmission shaft often due to long-term use, poor lubrication or with tight clamping, or because the bearings are not in the same axis position and cause the bearing inner ring and the shaft to produce relative displacement for a long time, the shaft Serious neck small room, may cause failure of the drive shaft rotation resulting in discontinuation. In the past encountered this situation, usually the old shaft removed to replace the new shaft. This caused a lot of material