空心车轴在运用中可能会出现意外损伤而诱发表面裂纹。
Accidental damages may occur on the surface of hollow axles of high-speed railway vehicles in running and this may induce surface cracks.
轮对包括设在空心车轴两端的车轮，空心车轴与轴箱体采用密封式圆锥滚珠轴承进行连接。
The wheel pair includes the wheels arranged at the two ends of the hollow axle box; and the hollow axle box and the axle box body are connected by adopting a seal type taper ball bearing.
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