ROTATING DEVICE
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United States of America Patent
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Issued Date -
Jun 4, 2015
app pub date -
Nov 20, 2014
filing date -
Nov 29, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A rotating device includes a beam unit and a beam receiving unit. The beam unit includes a shaft part, a first flange part projecting in a ring shape from one end of the shaft part in a radial direction, and a second flange part projecting in a ring shape in the radial direction from another end of the shaft part. The beam receiving unit includes a sleeve part surrounding the shaft part in a state in which the sleeve part is rotatable, wherein a lubricant is provided in a region including a gap between the beam unit and the beam receiving unit. A radial dynamic pressure generating groove is provided between the beam unit and the sleeve part, and first and second thrust dynamic pressure generating grooves are provided between the first flange part and the sleeve part, and between the second flange part and the sleeve part, respectively.
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