发明授权
- 专利标题： Recording disk apparatus and rotational supporting structure therefor, having a magnetic lubricant seal which is inclined
- 专利标题（中）： 记录盘装置及其旋转支撑结构，具有倾斜的磁性润滑剂密封
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申请号： US914180申请日： 1997-08-19
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公开(公告)号： US5973878A公开(公告)日： 1999-10-26
- 发明人: Takashi Yoshida , Takashi Kono , Kenji Tomida , Tomoaki Inoue , Masaaki Nakano , Hideaki Amano , Kenji Mori
- 申请人： Takashi Yoshida , Takashi Kono , Kenji Tomida , Tomoaki Inoue , Masaaki Nakano , Hideaki Amano , Kenji Mori
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX5-313265 19931214; JPX5-321564 19931221; JPX6-002960 19940117
- 主分类号： F16C33/10
- IPC分类号： F16C33/10 ; G11B25/04 ; H02K5/124 ; H02K5/16 ; G11B17/02 ; F16C32/06
摘要：
A recording disk apparatus comprises a clearance between a shaft and a thrust bearing portion tapered in a circumferential direction, a lubricant communication groove of a bearing covered by the shaft so that a lubricant on a radial bearing portion communicates with the lubricant on the thrust bearing portion through the lubricant communication groove, a lubricant circulating path which extends axially from the thrust bearing portion to the radial bearing portion to prevent the lubricant flowing out of the thrust bearing portion from returning directly to the thrust bearing portion without passing the radial bearing portion, and/or a clearance between a slide bearing and a magnetic fluid seal device substantially filled with a magnetic fluid lubricant.
公开/授权文献
- US5176526A Shielded stacking electrical connector assembly 公开/授权日：1993-01-05
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