Disc drive motor

Details Disc drive motor Disc drive motor

1989-04-20

1989-11-21

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 5012

Patent

active

048826430

ABSTRACT:
A disc drive motor having a rotor magnet at the internal circumference surface of a hub supporting a disk at its external circumferential surface. The rotor magnet is opposed to an internal motor stator. The hub is formed by inserting a yoke made of magnetic material almost in the shape of cup during aluminum die casting. At least a part of the internal circumference surface of the yoke is exposed and the motor magnet is fixed to the exposed part at the internal circumference surface of the yoke.

REFERENCES:
patent: 4519010 (1985-05-01), Elsaesser

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