DISK DRIVE DEVICE MANUFACTURING METHOD
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United States of America Patent
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N/A
Issued Date -
Oct 16, 2014
app pub date -
Apr 10, 2014
filing date -
Apr 12, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A disk drive device includes a base, a hub on which a recording disk is to be mounted, and a fluid dynamic bearing unit that supports the hub in a freely rotatable manner relative to the base. The hub includes a hub protrusion to be engaged with the center hole of the recording disk, and amount portion on which the recording disk is to be mounted. A manufacturing method of this disk drive device applies electromechanical machining to the hub protrusion to form an electromechanical machined surface.
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