Disk drive comprising a spindle motor having a windings...

Details Disk drive comprising a spindle motor having a windings... Disk drive comprising a spindle motor having a windings...

2006-09-26

2006-09-26

Miller, Brian E. (Department: 2627)

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

C360S098070

Reexamination Certificate

active

07113365

ABSTRACT:
A disk drive is disclosed comprising a disk, a head actuated over a surface of the disk, and a spindle motor for rotating the disk. The spindle motor comprises a ring-shaped stator having a plurality of stator teeth each wound with a winding. The spindle motor further comprises a hub having a plurality of magnets for interacting with the stator teeth to rotate the hub about the shaft when the windings are energized. A ring-shaped shield is disposed in a vertical gap between the windings and the hub to reduce a voltage coupled from the windings to the surface of the disk.

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