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1·Needle roller bearing is a bearing.

滚针轴承是轴承的一种。

2·Thrust needle roller bearing is a bearing.

推力滚针轴承是轴承的一种。

3·The needle roller faces are flat or rounded.

针滚的表面是平直的或圆形的。

4·The needle roller diameter decreases towards the ends.

针滚直径越向末端越小。

5·The first needle roller bearing catalog is published as a Practical Guide.

第一针滚子轴承目录出版的“实用指南” 。

6·Shell Type Needle Roller Bearings are light weight bearings with large load ratings.

壳型滚针轴承的额定载荷大，重量轻轴承。

7·The needle roller bearing is a cylindrical roller bearing with thin, long rolling elements.

滚针轴承是拥有薄的，长的滚动体的圆柱滚子轴承。

8·If this is not the case, the alignment needle roller bearing must be subjected to an additional radial load.

如果不是这样，必须使对中滚针轴承承受额外的径向载荷。

9·Crown Drop of a Needle roller decides the pressure distribution between roller and raceway, capability and life.

轴承滚针的凸度设计，决定了滚动体与滚道间的接触压力分布，影响其性能和寿命。

10·From analysis of combined needle roller bearing, the estimating formula of basic dynamic load rating for above bearing is derived.

从滚针组合轴承结构分析着手，推导出滚针组合轴承的基本额定动负荷估算公式。