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RESEARCH PAPERS

Dynamic Flying Characteristics of Magnetic Head Slider With Dust

[+] Author and Article Information
Mikio Tokuyama

Mechanical Engineering Research Laboratory, Hitachi, Ltd., Tsuchiura-shi, Ibaraki-ken, Japan

Shinichi Hirose

Data Storage & Retrieval Systems Division, Hitachi, Ltd., Odawara-shi, Kanagawa-ken, Japan

J. Tribol 116(1), 95-100 (Jan 01, 1994) (6 pages) doi:10.1115/1.2927054 History: Received March 08, 1993; Revised June 14, 1993; Online June 05, 2008

Abstract

The dust adhering to the taper of a slider changes the shape of its flying rail and decreases the efficiency of air lubrication that determines its flying height. The dynamic flying height characteristics of the slider with dust at its taper are numerically and experimentally examined. The numerical results show that a triangular accumulation of dust at the tapered portion of the slider degrades the motion-following performance of the slider as it covers the runout of the magnitude disk surface. A dust adhesion experiment revealed that dust at the tapered portion decreased the flying height and increased flying height fluctuations. The disk runout is considered a major reason for the fluctuation increase.

Copyright © 1994 by The American Society of Mechanical Engineers
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