发明申请
- 专利标题： METHOD FOR PRODUCING A HOUSING FOR A FLUID BEARING APPARATUS
- 专利标题（中）： 用于生产流体轴承装置的壳体的方法
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申请号： US13927818申请日： 2013-06-26
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公开(公告)号： US20130283619A1公开(公告)日： 2013-10-31
- 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
- 专利权人： NTN CORPORATION
- 当前专利权人： NTN CORPORATION
- 当前专利权人地址： JP Osaka
- 优先权： JP2005-034225 20050210; JP2005-046041 20050222
- 主分类号： F16C33/02
- IPC分类号： F16C33/02
摘要：
A method for producing a housing for a hydrodynamic bearing apparatus includes forming a housing 7 which has a cylindrical shape and which includes 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. The method includes providing a groove molding portion 18a2 on the outer circumference of a rod 18 which serves as a forming mold for the inner periphery of the housing 7, and forming the circulation grooves 7d of the housing by forging with the groove molding portion 18a2 of the mold. 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.