发明授权
US5930075A Disc drive spindle motor having hydro bearing with optimized lubricant
viscosity
失效
具有优化润滑剂粘度的液压轴承的盘式驱动主轴电机
- 专利标题： Disc drive spindle motor having hydro bearing with optimized lubricant viscosity
- 专利标题（中）： 具有优化润滑剂粘度的液压轴承的盘式驱动主轴电机
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申请号： US737437申请日： 1997-10-10
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公开(公告)号： US5930075A公开(公告)日： 1999-07-27
- 发明人: Raquib U. Khan , Hans Leuthold , David J. Jennings , Gregory I. Rudd , Gunter K. Heine
- 申请人： Raquib U. Khan , Hans Leuthold , David J. Jennings , Gregory I. Rudd , Gunter K. Heine
- 申请人地址： CA Scotts Valley
- 专利权人： Seagate Technology, Inc.
- 当前专利权人： Seagate Technology, Inc.
- 当前专利权人地址： CA Scotts Valley
- 主分类号： C10M171/00
- IPC分类号： C10M171/00 ; F16C33/10 ; G11B19/20 ; H02K5/16
摘要：
A disc drive data storage system according to the present invention includes a housing, a central axis, a stationary member which is fixed with respect to the housing and coaxial with the central axis, and a rotatable member which is rotatable about the central axis with respect to the stationary member. A stator is fixed with respect to the housing. A rotor is supported by the rotatable member and is magnetically coupled to the stator. At least one data storage disc is attached to and is coaxial with the rotatable member. A hydro bearing interconnects the stationary member and the rotatable member and includes a blend of base fluids. The base fluids in the blend are selected such that one of the base fluids has a viscosity that is greater than a desired viscosity selected for the disc drive, another of the base fluids has a viscosity that is less than the desired viscosity and the blend of base fluids has a viscosity that is within a selected range of the desired viscosity.
公开/授权文献
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