Fluid dynamic bearing motor configured with an integrated counterplate to contain bearing fluid
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United States of America Patent
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-
May 31, 2005
Grant Date -
Oct 21, 2004
app pub date -
Dec 1, 2003
filing date -
Apr 16, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluid dynamic bearing motor assembly is described. In one embodiment, the assembly includes a shaft, a sleeve configured to rotate about a rotational axis, and a counterplate attached to the sleeve. The counterplate includes a radial section and a axial section, which is attached to the radial section and partially defines a labyrinth to remove bearing fluid from a region between the shaft and the axial section.
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