发明授权
US6115213A Bearing assembly having compact thickness, spindle motor and actuator
using the same bearing assembly, and magnetic disk drive
失效
具有紧凑厚度的轴承组件，使用相同轴承组件的主轴电机和致动器以及磁盘驱动器
- 专利标题： Bearing assembly having compact thickness, spindle motor and actuator using the same bearing assembly, and magnetic disk drive
- 专利标题（中）： 具有紧凑厚度的轴承组件，使用相同轴承组件的主轴电机和致动器以及磁盘驱动器
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申请号： US913343申请日： 1997-09-11
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公开(公告)号： US6115213A公开(公告)日： 2000-09-05
- 发明人: Hiroshi Ikeda , Shinobu Yoshida , Masahiko Sega
- 申请人： Hiroshi Ikeda , Shinobu Yoshida , Masahiko Sega
- 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
- 主分类号： F16C19/54
- IPC分类号： F16C19/54 ; F16C19/56 ; G11B5/55 ; G11B17/038 ; G11B25/04 ; G11B17/08 ; F16C19/00 ; H02K5/16
摘要：
A magnetic disk drive which is to be used for recording and/or reproducing information, and a bearing assembly for use in the same magnetic disk drive. The bearing assembly includes two bearings of different diameters, of which a small-diameter bearing is arranged within an inner periphery of a large-diameter bearing. The two bearings are joined by means of bearing coupling members for connecting respectively inner rings and outer rings of the bearings. The small-diameter bearing is arranged within the inner periphery of the large-diameter bearing, and therefore a height of the bearing assembly can be made thinner to about one and a half times a height of a single bearing. It is therefore possible to make the magnetic disk drive smaller and thinner by employing this bearing assembly.
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