经改善钢材质量、采用塑料保持架、改进挡边结构及凸度滚子的应用，可使圆柱滚子轴承的寿命和性能大幅度提高。

By improving steel material quality, adopting plastic cage, improving rib structure and using crowned rollers, the life and performance of cylindrical roller bearing can be largely increased.

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介绍了为提高铁道车辆用轴承的安全性、可靠性并延长其寿命而开发的塑料保持架、搭载传感器轴承，以及车辆运动仿真试验机。

Described are the plastic cage, sensor-carrying bearings and rolling stock motion simulation tester developed for safety, reliability and prolonging the service life of bearings for rolling stock.

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滚动轴承保持架是由金属或塑料。

Rolling bearing cages are made of metal or plastic.

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