发明授权
- 专利标题： Fluid dynamic bearing device
- 专利标题（中）： 流体动力轴承装置
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申请号： US13435915申请日： 2012-03-30
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公开(公告)号： US08931175B2公开(公告)日： 2015-01-13
- 发明人: Natsuhiko Mori , Nobuyoshi Yamashita , Fuminori Satoji , Isao Komori , Toshiyuki Mizutani , Masafumi Okuma , Kenichi Mitani
- 申请人： Natsuhiko Mori , Nobuyoshi Yamashita , Fuminori Satoji , Isao Komori , Toshiyuki Mizutani , Masafumi Okuma , Kenichi Mitani
- 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： JP2005-145362 20050518; JP2005-145370 20050518; JP2005-145373 20050518; JP2005-145506 20050518; JP2005-145517 20050518; JP2005-145521 20050518
- 主分类号： F16C32/06
- IPC分类号： F16C32/06 ; F16C33/10 ; F16C17/02 ; F16C17/10
摘要：
It is an object of the present invention to provide a bearing member having a highly accurate dynamic pressure generating portion stably at low cost. Dynamic pressure grooves (8a1) and (8a2) are formed as the dynamic pressure generating portions on an inner circumferential surface of the electroforming portion (10) by an electroforming process, and injection molding is performed by using a resin while inserting the electroforming portion (10), thereby forming a bearing member (8). A shaft member (2) is inserted into an inner circumference of the bearing member.
公开/授权文献
- US20120186983A1 FLUID DYNAMIC BEARING DEVICE 公开/授权日：2012-07-26