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1.轴向弹性滚柱轴承的任务随着客、货列车运行速度的提高及载重量的增加,线路上的动应力也越来越大。由于车辆和线路在轮、轨接触处始终处于交变作用,所以,若要使机车车辆长期地保持良
1. Axial elastic roller bearing mission With passenger and freight trains running speed and load capacity increases, the dynamic stress on the line is also growing. As the vehicles and lines in the wheel and rail contact is always in an alternating role, so to keep the locomotive rolling long-term good