Low pofile radially and axially preloaded ball bearing for actua

Details Low pofile radially and axially preloaded ball bearing for actua Low pofile radially and axially preloaded ball bearing for actua

1996-10-02

1998-06-16

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 9908, 384516, G11B 2504

Patent

active

057680604

ABSTRACT:
A radially and axially preloaded bearing that has a very low mass and axial profile and which can be used in a actuator pivot of a direct access storage device without the need for a second bearing to counter the preload. An outer race of the bearing is split in order to form an open ring. Three balls are placed between the outer race and an inner race. Both the inner surface of the outer race and the outer surface of the inner race are formed such that two contact points exist between each ball and each race. Alternatively, the outer race is a closed toroid. The inner race is radially split to form a lower and an upper race, each being a closed toroid. In yet another alternative, the outer race is radially split into an upper outer race and a lower outer race. The inner race is a single closed toroid. A limiter is used to limit the movement of each of the balls. Alternatively, a conventional ball cage is used.

REFERENCES:
patent: 937822 (1909-10-01), Jenkins
patent: 4568992 (1986-02-01), Kaczeus et al.
patent: 4682255 (1987-07-01), Sleger et al.
patent: 4718781 (1988-01-01), Gerard
patent: 4896239 (1990-01-01), Ghose
patent: 5427458 (1995-06-01), Sanchez
patent: 5555233 (1996-09-01), Yano et al.

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