Method for manufacturing a fluid bearing device
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United States of America Patent
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-
Sep 9, 2014
Grant Date -
Mar 29, 2012
app pub date -
Nov 30, 2011
filing date -
Dec 24, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A fluid bearing device is manufactured with a high adhesive strength in fixing another member by adhesion to a resin housing. A bearing sleeve is secured in position inside the resin housing, and a shaft member is radially supported in a non-contact fashion by a dynamic pressure action of lubricant generated in a radial bearing clearance between the shaft member and the bearing sleeve. A metal bracket for mounting the stator coil of a motor is fixed by adhesion to the outer periphery of the housing, in which the adhesion portion of the outer periphery of the housing to be fixed to the bracket is roughened, setting the surface roughness to 0.5 μmRa to 2.0 μmRa.
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