Spindle motor and hard disk drive

Details Spindle motor and hard disk drive Spindle motor and hard disk drive

2005-09-13

2005-09-13

Tupper, Robert S. (Department: 2652)

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

Reexamination Certificate

active

06943985

ABSTRACT:
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.

REFERENCES:
patent: 5357163 (1994-10-01), Minakuchi et al.
patent: 5487608 (1996-01-01), Leuthold et al.
patent: 5536088 (1996-07-01), Cheever et al.
patent: 5667309 (1997-09-01), Nose
patent: 5847479 (1998-12-01), Wang et al.
patent: 5973878 (1999-10-01), Yoshida et al.
patent: 6172847 (2001-01-01), Sakatani et al.
patent: 6217218 (2001-04-01), Inoue et al.
patent: 2000-215589 (2000-08-01), None

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