Magnetic disk unit utilizing a predetermined range for the frict

Details Magnetic disk unit utilizing a predetermined range for the frict Magnetic disk unit utilizing a predetermined range for the frict

1990-06-08

1992-07-14

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360103, 360 7303, G11B 560, G11B 1702

Patent

active

051308673

ABSTRACT:
A magnetic disk unit has a magnetic head and a magnetic recording medium. The magnetic head records and retrieves information to and from the magnetic recording medium. In the magnetic disk unit the magnetic head and magnetic recording medium move relative to each other; and a device sets the frictional coefficient of the magnetic head and magnetic recording medium within an intermediate range extending from a minimum frictional coefficient point to a point where the durability of the magnetic head and the magnetic recording medium is not adversely affected. The range is determined, on a Stribeck diagram which indicates the relation of a relative velocity to a frictional coefficient of the magnetic head and magnetic recording medium.

REFERENCES:
patent: 4605977 (1986-08-01), Matthews
patent: 4777544 (1988-10-01), Brown et al.
patent: 4814907 (1989-03-01), Goor

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