发明授权
- 专利标题： Fluid bearing apparatus
- 专利标题（中）： 流体轴承装置
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申请号： US11816058申请日： 2006-01-11
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公开(公告)号： US08746978B2公开(公告)日： 2014-06-10
- 发明人: Nobuyoshi Yamashita , Toshiyuki Mizutani , Tetsuya Kurimura , Kiyoshi Shimizu , Yoshitaka Kabata , Masatoshi Tanigawa , Eiichi Fujita , Koji Yamagata , Masato Utiumi
- 申请人： Nobuyoshi Yamashita , Toshiyuki Mizutani , Tetsuya Kurimura , Kiyoshi Shimizu , Yoshitaka Kabata , Masatoshi Tanigawa , Eiichi Fujita , Koji Yamagata , Masato Utiumi
- 申请人地址： JP Osaka-shi
- 专利权人： NTN Corporation
- 当前专利权人： NTN Corporation
- 当前专利权人地址： JP Osaka-shi
- 代理机构： Westerman, Hattori, Daniels & Adrian, LLP
- 优先权： JP2005-034225 20050210; JP2005-046041 20050222
- 国际申请： PCT/JP2006/300235 WO 20060111
- 国际公布： WO2006/085426 WO 20060817
- 主分类号： F16C32/06
- IPC分类号： F16C32/06
摘要：
A fluid bearing apparatus includes a housing 7 which has a cylindrical shape having a fixing face 7c for fixing the outer circumferential surface 8b of a bearing sleeve 8, and axial circulation grooves 7d for bringing both end faces 8c, 8d of the bearing sleeve 8 into circulation on the inner periphery by forging. A groove molding portion 18a2 is provided on the outer circumference of a rod 18 which serves as a forming mold for the inner periphery of the housing 7, and the circulation grooves 7d are formed by forging with this groove molding portion 18a2. Moreover, after a sealing face 107d and a cylindrical outer circumferential surface 107e provided on the outer periphery of the housing 107 are formed by forging, an inner circumferential surface 107c is formed by forging.
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