发明授权
- 专利标题： Bearing device and method of manufacturing the bearing device
- 专利标题（中）： 轴承装置及其制造方法
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申请号： US10362336申请日： 2003-02-20
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公开(公告)号： US06808312B1公开(公告)日： 2004-10-26
- 发明人: Kazutoshi Toda , Shinichirou Kashiwagi , Tomohiro Ishii , Tadashi Mitarai , Daisaku Tomita
- 申请人： Kazutoshi Toda , Shinichirou Kashiwagi , Tomohiro Ishii , Tadashi Mitarai , Daisaku Tomita
- 优先权： JP2000-249300 20000821
- 主分类号： F16C4304
- IPC分类号： F16C4304
摘要：
A bearing device comprising a shaft body having an axially cylindrical portion in a free end side thereof and a rolling bearing fitted around an outer peripheral surface of the shaft body, wherein the cylindrical portion is bent and deformed radially outward by a rolling caulking to be caulked thereby on an outer end face of an inner ring of the rolling bearing, and a surface roughness of the inner peripheral surface of the cylindrical portion is set to 12.5 &mgr;m or less by a ten-point mean roughness (Rz).
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