Magnetic disk memory comprising a membrane spring-braced bearing

Details Magnetic disk memory comprising a membrane spring-braced bearing Magnetic disk memory comprising a membrane spring-braced bearing

1985-01-29

1988-04-19

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 98, G11B 5012, G11B 582

Patent

active

047394250

ABSTRACT:
A magnetic disk memory comprises a hub rotatably seated at both ends in a one-piece supporting shell of a housing and carrying at least one storage disk and driven by an internal drive motor. The hub is fixed on a rotating spindle, whereby a pair of ball bearings is provided for seating the spindle at mutually opposite walls of the supporting shell. The ball bearings are embraced in the axial direction in order to achieve a play-free spindle guidance. Each ball bearing has an inner ring fixed with an interference fit onto a respective end of the spindle and a respective bearing bushing likewise seated with an interference fit on its outer ring. One of the two bearing bushings is rigidly disposed in the allocated wall of the supporting shell and, in the incorporated condition of the hub, the other bearing bushing is fixed at the opposite wall of the supporting shell and is prestressed in the axial direction.

REFERENCES:
patent: 3670315 (1972-06-01), Fowler
patent: 4005490 (1977-01-01), Duncan et al.
patent: 4216512 (1980-08-01), Vidwans
patent: 4519010 (1985-05-01), Elsaesser et al.
Apr., 1982, pp. 163-169.

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