METHODS FOR FORMING GROOVED BEARING PATTERNS
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Jun 17, 2016
filing date -
Sep 30, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Proposed is a fluid dynamic bearing system having a bearing bush, a shaft rotatably supported in a bearing bore of the bearing bush and a hub connected to the shaft. A bearing gap filled with bearing fluid and having an axial section is defined between the shaft, the bearing bush and the hub. A first and a second fluid dynamic radial bearing are disposed along the axial section of the bearing gap, the radial bearings being marked by grooved bearing patterns on the associated bearing surfaces of the shaft and/or of the bearing bush. The two radial bearings have a mutual distance dL measured from an apex line of the first radial bearing to an apex line of the second radial bearing. A separator groove is disposed in the bearing bush or in the shaft in the axial section of the bearing gap between the two radial bearings and has an axial length lS. According to the invention, the ratio between the distance dL and the length lS 6is greater than 5 (five).
First Claim
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