Actuator bearing having non-uniform ball spacing

Details Actuator bearing having non-uniform ball spacing Actuator bearing having non-uniform ball spacing

2011-04-19

2011-04-19

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head mounting

For shifting head between tracks

C360S265400

Reexamination Certificate

active

07929253

ABSTRACT:
A method is provided for maintaining the aggregate stiffness of a pivot bearing assembly generally employed along with an actuator assembly of a magnetic disk drive, while increasing the stiffness in a predetermined direction. More specifically, bearing cartridges used in conjunction with actuator assemblies of the prior art employ at least one ball bearing assembly positioned about a stationary shaft. A modification is presented herein that generally concerns repositioning and maintaining the balls of the ball bearing along a predetermined axis for efficient reaction of loads.

REFERENCES:
patent: 5483744 (1996-01-01), Roberts
patent: 5510940 (1996-04-01), Tacklind et al.
patent: 5768060 (1998-06-01), Albrecht et al.
patent: 6687092 (2004-02-01), Kan et al.

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