发明名称 |
Spindle motor and hard disk drive |
摘要 |
A spindle motor for a hard disk drive having a stationary component with a first bearing surface, and a rotating component with a second bearing surface located in opposing relationship with the first bearing surface. The first and the second bearing surfaces form a hydrodynamic bearing. A bearing gap is formed between the first bearing surface and the second bearing surface, the bearing gap being filled with lubricating fluid. An oil-free recess is provided in the motor for placement of electromagnetic components of the motor. The stationary component is provided with a first set of seal surfaces, and the rotating component is provided with a second set of seal surfaces. The seal surfaces of the first set are located opposite the seal surfaces of the second set and form a labyrinth seal sealing the bearing gap from the oil-free motor recess.
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申请公布号 |
US2003174637(A1) |
申请公布日期 |
2003.09.18 |
申请号 |
US20030384012 |
申请日期 |
2003.03.07 |
申请人 |
MINEBEA CO., LTD. |
发明人 |
KULL ANDREAS;HOFFMAN JOERG;WINTERHALTER OLAF |
分类号 |
F16C17/02;F16C17/04;F16C17/10;F16C17/26;F16C33/10;F16C33/80;G11B19/20;H02K5/15;H02K5/16;H02K5/167;H02K21/22;(IPC1-7):G11B17/02;G11B23/00;G11B25/00;F16C32/06 |
主分类号 |
F16C17/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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