Rotating support apparatus in disk storage device

Details Rotating support apparatus in disk storage device Rotating support apparatus in disk storage device

1991-02-04

1992-05-12

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384493, F16C 1952

Patent

active

051121476

ABSTRACT:
A rotating support apparatus in a disk storage device is provided with a stationary shaft, ball bearings rotatably fitted on the stationary shaft, a rotatable member rotatably supported by and on the ball bearings, and buffer rings superimposed between the associated ball bearings and the rotatable member to absorb a thermal deformation of the rotatable member due to a change in a temperature. The buffer rings have a same coefficient of linear expansion as that of the material of which the rotatable member is made, and each of the buffer rings is in contact, at two points of the outer inner surfaces thereof, with the rotatable member or outer races of the ball bearings, and at one point of the inner or outer surface thereof, with the associated ball bearing or the inner surface of the hub, respectively.

REFERENCES:
patent: 4226485 (1980-10-01), Pruvot
patent: 4814652 (1989-03-01), Wright
patent: 4829657 (1989-05-01), Wright
patent: 4928029 (1990-05-01), Wright

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