Ball bearing and head positioning apparatus

Details Ball bearing and head positioning apparatus Ball bearing and head positioning apparatus

1991-11-15

1993-04-06

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384523, F16C 3366, F16C 3338

Patent

active

051997991

ABSTRACT:
A ball bearing assembly includes a ball retainer for retaining within a predetermined area each of the balls positioned between an inner race and an outer race, the retainer having grease feeding holes which extend toward the balls. Grease is fed only to those balls which actually need lubrication, and no remaining grease flows into a gap between the inner race or the outer race and the ball retainer, therefore frictional force does not increase. In the preferred embodiment, the ball bearing assembly is used to support a head and carriage assembly of a data storage disk apparatus.

REFERENCES:
patent: 1767107 (1930-06-01), Yates
patent: 2987350 (1961-06-01), Hay
patent: 3539231 (1970-11-01), Langstrom
patent: 3743369 (1973-07-01), Langstrom
patent: 4586833 (1986-05-01), Walter et al.
patent: 4781877 (1988-11-01), Rabe

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