Magnetic disk drive apparatus having disk clamp attachable using

Details Magnetic disk drive apparatus having disk clamp attachable using Magnetic disk drive apparatus having disk clamp attachable using

1994-04-11

1996-05-14

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Recording or reproducing an information signal and a control...

Reference carrier to control demodulator

360 2808, 360 2208, G11B 1708

Patent

active

055173748

ABSTRACT:
A magnetic disk drive apparatus including: a hub being rotatably supported by bearings mounted on a center fixed shaft and driving magnetic disks while having the magnetic disks attached to the outer circumferential surface thereof; a drive magnet fixedly secured to the hub; and a stator core fixed on a frame portion so as to confront the drive magnet. A clamp cap portion on a distal end portion of the hub is arranged for closing a center hole of the hub, and a tap hole is formed at the center of the clamp cap portion so that a disk clamp for clamping the magnetic disks can be screwed.

REFERENCES:
patent: 4561035 (1985-12-01), McDorman
patent: 5045738 (1991-09-01), Hishida

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