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 ballbearing.
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。
2
Mechanical concept is based on a double ballbearing design, and is available as a solid-shaft or hollow-shaft version in common shaft diameters.
机械概念是基于双滚珠轴承设计，并作为固体轴或空心轴直径共同轴版本。
3
The mechanical concept is based on a double ballbearing design, which is available as a solid-shaft or hollow-shaft version in common shaft diameters.