Disk drive unit having seal part forming gas-liquid interface of lubricant
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United States of America Patent
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Jun 2, 2015
Grant Date -
Dec 4, 2014
app pub date -
May 21, 2014
filing date -
May 31, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A disk drive unit includes a stationary body; a rotating body rotatably supported on the stationary body, a seal part configured to form a first gas-liquid interface of a lubricant existing in a gap between the stationary body and the rotating body, and a groove-shaped opening opposing the seal part and communicating to the gap via a communication hole. The seal part has a shape such that the gap gradually increases towards an aperture opposing the groove-shaped opening, and the groove-shaped opening has a shape such that the gap gradually increases towards an aperture opposing the seal part.
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