因圆锥滚子大端与内圈挡边之间滑动摩擦，其极限转速往往低于同尺寸的圆柱滚子轴承。
For tapered roller large end and sliding friction between the inner wall, the speed limit is often lower than the same size cylindrical roller bearings.
分析圆锥滚子轴承内圈锻件结构，对原锻造工艺中的不足提出了相应的工艺改进措施。
With analysis of structure of cone roller bearing inner ring forgings, corresponding improvement on original forging technology has been put forward.
使用LZ223直挡边磨床磨削圆锥滚子轴承内圈大挡边圆锥面，取得较好效果。
Use type LZ223 automatic rib grinding machine to grinding the conical surface of cone ribs has obtained better results.
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