Hydrodynamic bearing with bearing surface having branched...

Details Hydrodynamic bearing with bearing surface having branched... Hydrodynamic bearing with bearing surface having branched...

2007-03-16

2010-12-28

Hannon, Thomas R (Department: 3656)

Bearings

Rotary bearing

Fluid bearing

C384S114000

Reexamination Certificate

active

07857516

ABSTRACT:
A hydrodynamic bearing (300) has a bearing surface adapted for receiving a shaft to rotate thereon. The bearing surface has a plurality of grooves (34) defined therein. The grooves are used for generating hydrodynamic pressure. A depth of each of the grooves is changed in a sloping trend along the extension direction of the groove.

REFERENCES:
patent: 6350059 (2002-02-01), Takahashi
patent: 2006/0192451 (2006-08-01), Hong et al.
patent: 1690459 (2005-11-01), None
patent: 1824961 (2006-08-01), None
patent: 10-306827 (1998-11-01), None
patent: 2006/123602 (2006-11-01), None

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