Disk drive including a balancing ring with a balancing...

Details Disk drive including a balancing ring with a balancing... Disk drive including a balancing ring with a balancing...

Filed on

2008-03-11

Date issued

2008-03-11

Examiner

Castro, Angel (Department: 2627)

Patent Class

Dynamic magnetic information storage or retrieval

SubClass

Record transport with head stationary during transducing

SubSubClass

Disk record

Other Related Categories

C360S099120

Type

Reexamination Certificate

Status

active

Patent number

11117866

Description

ABSTRACT:
A disk drive includes a disk drive base and a spindle motor including a spindle motor hub, a spindle motor shaft and a stator. The hub includes an upper end and a lower end. The hub is rotatably coupled to the base via the shaft for rotating the hub about an axis of rotation. The lower end is disposed towards the disk drive base. The stator is attached to the base adjacent the lower end. A balancing ring is attached to the lower end of the hub about the shaft. The disk drive further includes a balancing weight attached to the ring. The weight is attachable to the ring through the disk drive base with the ring attached to the lower end of the hub. A method of balancing the hub is further provided using the ring and the weight.

REFERENCES:
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patent: 5555144 (1996-09-01), Wood et al.
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patent: 6356409 (2002-03-01), Price et al.
patent: 6550328 (2003-04-01), Horning et al.
patent: 6608733 (2003-08-01), Elsing
patent: 6816338 (2004-11-01), Suwito
patent: 7130151 (2006-10-01), Nakamiya et al.
patent: 06096556 (1994-04-01), None
patent: 11353788 (1999-12-01), None

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