发明名称 |
Bearing device and method of manufacturing the bearing device |
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. An inner peripheral surface of the cylindrical portion is formed by a turning work, and a residual stress left in a surface layer of the inner peripheral surface of the cylindrical portion by the turning work is set to a value capable of restraining a crack generation ratio in the inner peripheral surface to less than a predetermined rate, desirably to not more than 5 kgf/mm<2>.
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申请公布号 |
US6814495(B2) |
申请公布日期 |
2004.11.09 |
申请号 |
US20030362338 |
申请日期 |
2003.02.20 |
申请人 |
KOYO SEIKO CO., LTD. |
发明人 |
TODA KAZUTOSHI;KASHIWAGI SHINICHIROU;ISHII TOMOHIRO;MITARAI TADASHI;TOMITA DAISAKU |
分类号 |
B60B27/00;F16C35/063;F16C37/00;(IPC1-7):F16C43/04;B23P15/00 |
主分类号 |
B60B27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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