Disk drive including surface coated disk clamp screws with reduced coefficient of friction for mitigating disk clamp movement
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United States of America Patent
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-
Jun 6, 2006
Issued Date -
N/A
app pub date -
Oct 31, 2002
filing date -
Oct 31, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An aspect of the invention can be regarded as a disk drive that includes a disk drive base, a disk including disk surface, and a spindle motor including a spindle motor hub including a clamping surface with disk clamp holes. The disk drive includes a disk clamp disposed upon the disk surface. The disk clamp includes a screw head interface surface and screw openings. The disk drive includes disk clamp screws each including a shaft sized and configured to respectively engage the threaded disk clamp holes respectively through the screw openings. The screws each further include a screw head having a screw head clamping surface disposed against the screw head interface surface. The screws each further include a surface coating disposed upon the screw head clamping surface. The surface coating has a static coefficient of friction less than a static coefficient of friction of the screw head.
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