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在载荷及速度提高的条件下,列车运行的安全性在很大程度上取决于轮对的技术状态。因此,各科研机构、铁路及工业部门在改善轮对的技术状态、提高轮对的可靠性和耐久性方面作了大量工作。苏联铁路已在1970年前完全取消了铁制车轮和带铁制轮心的车轮,1977年前取消了带箍轮。目前全部车辆均装用整体辗钢车轮。采用强化滚压车轴能够大大提高轮对运用的可靠性。强化滚压方法还可用来修理轮座带有横向及斜向裂纹的车轴。在滚柱轴承化过程中,曾制定了几种车
Under load and speed increases, the safety of train operation depends largely on the technical state of the wheelset. Therefore, a great deal of work has been done by various research institutes, railway and industrial departments in improving the technical status of wheelsets and improving the reliability and durability of wheelsets. Soviet Railways has completely abolished iron wheels and wheel hubs with wheel hubs by 1970, and band hoops were abolished by 1977. At present, all vehicles are equipped with the overall rolling steel wheels. The use of enhanced roll axle can greatly improve the reliability of wheel alignment. Reinforced rolling method can also be used to repair the wheel axle with horizontal and oblique cracks in the axle. In the roller bearing process, has developed several vehicles