Dynamic pressure bearing apparatus
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United States of America Patent
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-
May 22, 2007
Grant Date -
Nov 9, 2006
app pub date -
Jul 12, 2006
filing date -
Apr 13, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dynamic bearing apparatus which supports a shaft and a bearing so as to be capable of relative rotation by a dynamic pressure of a lubricating fluid. A bottomed screw hole (21a) is provided to at least one end of the shaft (21) to screw a headed screw (24) for attaching a thrust plate (23) a lubricating fluid (F) is filled in a gap of a screw portion between the screw (24) and the screw hole (21a) or a screw non-occupied space (17), and an interposing member (25) which reduces a void cubic content in the screw non-occupied space (17) is attached to the screw non-occupied space (17).
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