发明授权
- 专利标题： Rolling bearing unit for supporting vehicle wheel
- 专利标题（中）： 用于支撑车轮的滚动轴承单元
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申请号： US09641863申请日： 2000-08-18
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公开(公告)号： US06422758B1公开(公告)日： 2002-07-23
- 发明人: Hiroya Miyazaki , Yoshihisa Ohnuki , Takafumi Kuwano , Hiroyuki Sawai
- 申请人： Hiroya Miyazaki , Yoshihisa Ohnuki , Takafumi Kuwano , Hiroyuki Sawai
- 优先权： JP9-6343 19970117; JP9-158878 19970616; JP9-321055 19971121; JP9-232798 19980828
- 主分类号： F16C1360
- IPC分类号： F16C1360
摘要：
A bearing unit for vehicle wheel support comprising a shaft having a mounting flange for vehicle wheel or suspension apparatus, a step portion formed on one end portion thereof, a first inner ring raceway directly formed thereon, and a crimped portion formed on the end side of the step portion, and an inner ring fitted onto the step portion and having a second inner ring raceway thereon, the shaft being quench hardened at least at the first inner ring raceway with the crimped portion kept as formed and without quench hardened, and the inner ring being fixed to the shaft by the crimped portion of the shaft.
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