ROTATING DEVICE
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United States of America Patent
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N/A
Issued Date -
Aug 20, 2015
app pub date -
Feb 10, 2015
filing date -
Feb 14, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A rotating device includes: a rotating body supported in a freely rotatable manner relative to a stationary body; a retaining gap retaining a lubricant; a fluid dynamic pressure generating portion generating dynamic pressure to the fluid; a capillary seal in communication with a first end of the retaining gap, and extending toward an external side from the retaining gap; a cap including an annular cover portion that covers at least a part of an end of the capillary seal located at the external side from the retaining gap, and, a cylindrical portion that extends from an outer circumference of the cover portion in an axial direction; and an annular groove including an annular first wall that encircles the cylindrical portion, an annular second wall that is encircled by the cylindrical portion, and a bottom wall that faces an end of the cylindrical portion opposite to the cover portion.
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