Magnetic disk memory having a disk pack seated at both sides in

Details Magnetic disk memory having a disk pack seated at both sides in Magnetic disk memory having a disk pack seated at both sides in

1985-01-29

1987-10-27

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 5012

Patent

active

047033746

ABSTRACT:
A magnetic disk memory has a disk pack with a revolving spindle, the disk pack being seated at both sides in a housing and being driven by a drive motor arranged within the hub. The spindle is seated at mutually opposite walls of a supporting shell of the housing with a pair of ball bearings which are tensioned in the axial direction. To this end, each ball bearing is fixed with an interference fit on a respective axial peg of the spindle and is likewise disposed with interference fit in a respective bearing bushing. One of the bearing bushings is inserted into and fixed in a slot let into one wall of a supporting shell of the housing. Assigned to the other bearing bushing is a resilient wall section in the other wall of the supporting shell at which section the second bearing bushing is fixed pressing inwardly against the spring power of this wall region.

REFERENCES:
patent: 3553663 (1971-01-01), Scholz
patent: 3593332 (1971-07-01), Strehl
patent: 3817088 (1974-06-01), Herbig
patent: 3838464 (1974-09-01), Doyle
patent: 4150406 (1979-04-01), Stollorz
patent: 4315288 (1982-02-01), Bernett et al.
patent: 4359762 (1982-11-01), Stollorz
Swartz, J., "Motor in Spindle . . . 140M Bytes", Mini-Micro Systems, Feb. 1983, pp. 143-148.
Yasunaga et al., "Mechanisms for . . . Disk Storage", Review of the Elec. Comm. Lab., 1982, vol. 30, No. 1, pp. 46-56.

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