Magnetic disk drive capable of reducing distortions of disks

Details Magnetic disk drive capable of reducing distortions of disks Magnetic disk drive capable of reducing distortions of disks

1994-10-26

1996-08-27

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9802, 360 9912, 360133, G11B 1702, G11B 2303

Patent

active

055506879

ABSTRACT:
A magnetic disk drive has a top spacer made of ceramic having a high Young's modulus, and a cylindrical clamp ring having a substantial thickness. The top spacer presses a stack of magnetic disks and spacers, which alternate with each other, over the same pressing diameter as a spindle motor. When the top spacer and clamp ring are fastened to the spindle motor by screws, they reduce the deformation of the disks.

REFERENCES:
patent: 4819105 (1989-04-01), Edwards
patent: 4945432 (1990-07-01), Matsudairo et al.
patent: 5243481 (1993-09-01), Dunckley et al.

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