Etched/lubricated swage balls for use in DASD suspension-arm attachment
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United States of America Patent
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-
Mar 9, 1999
Grant Date -
N/A
app pub date -
Mar 12, 1997
filing date -
Mar 12, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An etched, lubricated swage ball for use in swaging a head gimbal assembly to an actuator arm in a magnetic disk drive, and a method for making the same. The present invention discloses a lubricating system for swage balls used in a disk drive system which is free from transferrable aluminum oxide, other hard materials or excess solid lubricant which could be deposited on the clean disk surface during operation. The swage balls are first pretreated by cleaning and then etching to remove residual alumina from the surface of the swage balls. The cleaned, etched swage balls are then lubricated in a fluorocarbon lubricating system, thereby producing an etched, lubricated swage ball which is cleaner than that found in the prior art.
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