发明名称 |
Spindle motor with hydrodynamic bearing |
摘要 |
The present disclosure relates to a spindle motor having a shaft defining an axial bore that extends completely through the length of the shaft. At least a portion of the axial bore defines a fluid reservoir. A radial passageway extends radially from the fluid reservoir to an exterior surface of the shaft. The spindle motor also includes a pin that seals one end of the axial bore, and a plug that seals an opposite end of the axial bore. The motor further includes a rotor member that is rotatably mounted on the shaft. A bearing fluid forms a hydrodynamic bearing between the exterior surface of the shaft and the rotor member. The bearing fluid at least partially fills the fluid reservoir and the radial passageway.
|
申请公布号 |
US6236535(B1) |
申请公布日期 |
2001.05.22 |
申请号 |
US19980123725 |
申请日期 |
1998.07.28 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
GILLILAND LARRY JOE;LEE CHEN-HSIUNG |
分类号 |
F16C33/10;G11B17/028;G11B19/20;H02K5/16;(IPC1-7):G11B17/02 |
主分类号 |
F16C33/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|