发明授权
US08635775B2 Process for manufacturing a bearing ring member as a constituent of a rolling bearing unit for wheel support
有权
用于制造用于车轮支撑的滚动轴承单元的构件的轴承环构件的制造方法
- 专利标题： Process for manufacturing a bearing ring member as a constituent of a rolling bearing unit for wheel support
- 专利标题（中）： 用于制造用于车轮支撑的滚动轴承单元的构件的轴承环构件的制造方法
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申请号： US12096725申请日： 2006-12-05
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公开(公告)号： US08635775B2公开(公告)日： 2014-01-28
- 发明人: Kazuto Kobayashi , Yuu Yasuda , Kiyoshi Ootsuka
- 申请人： Kazuto Kobayashi , Yuu Yasuda , Kiyoshi Ootsuka
- 申请人地址： JP Tokyo
- 专利权人： NSK, Ltd.
- 当前专利权人： NSK, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Crowell & Moring LLP
- 优先权： JP2005-354469 20051208
- 国际申请： PCT/JP2006/324216 WO 20061205
- 国际公布： WO2007/066634 WO 20070614
- 主分类号： B21K1/40
- IPC分类号： B21K1/40
摘要：
This invention provided a manufacturing method to process a small-diameter step section 18 on an inside end section of a hub body 13a that comprises an outward facing flange 15 and a positioning cylinder 16 stably and with high precision. In this invention, an intermediate material 40 is pressed between a lower punch 36 and an upper punch 46 with an outer peripheral surface of the intermediate material 40 being held by a lower die 37 and an upper die 43, and then a part of the intermediate material 40 is pressed into the lower punch 36 such that the small-diameter step section 18 is formed by cold plastic working.
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