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Class Information
Number: 384/120
Name: Bearings > Rotary bearing > Fluid bearing > Radial > Circumferential groove in outer member
Description: Subject matter wherein the bearing surface of an outer relatively rotating element has a narrow furrow, or hollow cut that is around its periphery for receiving the fluid.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8681453 Disk driving apparatus having improved quality Mar. 25, 2014
8607442 Rotating apparatus capable of improving the shock resistance Dec. 17, 2013
8608386 Journal bearing design Dec. 17, 2013
8562218 Fluid dynamic bearing system and a spindle motor having a fluid dynamic bearing system Oct. 22, 2013
8553354 Disk driving apparatus having improved quality Oct. 8, 2013
8511899 Fluid dynamic bearing device, and manufacturing method of bearing member Aug. 20, 2013
8499456 Method for producing a housing for a fluid bearing apparatus Aug. 6, 2013
8366321 Bearing unit, and motor and electronic apparatus having bearing unit Feb. 5, 2013
8194347 Designed roughness and surface treatments for capillary buffer of fluid dynamic bearings Jun. 5, 2012
8182154 Fluid dynamic bearing system May. 22, 2012
8120220 Fluid dynamic bearing device and manufacturing method therefor Feb. 21, 2012
8001691 Method for manufacturing hydrodynamic bearing and shaft Aug. 23, 2011
7959357 Fluid dynamic bearing spindle motor Jun. 14, 2011
7775720 Bearing device Aug. 17, 2010
7736061 Fluid dynamic bearing motor, and recording-medium driving apparatus Jun. 15, 2010
7698064 Gas supported inertial sensor system and method Apr. 13, 2010
7619339 Fluid dynamic bearing assembly for directing bubbles Nov. 17, 2009
7431505 Fluid lubrication bearing apparatus Oct. 7, 2008
7411762 Fluid dynamic pressure bearing including dynamic pressure generating grooves, and spindle motor and disc drive including the bearing Aug. 12, 2008
RE38791 Sliding bearing Sep. 6, 2005
6935786 Hydraulic bearing Aug. 30, 2005
6905247 Fluid bearing and brushless motor having the same Jun. 14, 2005
6880976 Hydrodynamic and hydrostatic hybrid bearing and its manufacturing method Apr. 19, 2005
6517247 Positioning structure of bearing and axle tube Feb. 11, 2003
6400052 Motor and rotary apparatus having motor Jun. 4, 2002
6398414 Structure of a bearing Jun. 4, 2002
6378209 Method of producing fluid bearing device Apr. 30, 2002
6318896 Annular bearing with diffuser and inlet flow guide Nov. 20, 2001
6066903 Hydrodynamic bearing for use in an electric motor and an electric motor having the hydrodynamic bearing May. 23, 2000
5988888 Squeeze film damper bearing Nov. 23, 1999
5947610 Hydrodynamic thrust bearing assembly Sep. 7, 1999
5910853 Rotary polygon mirror optical scanning device Jun. 8, 1999
5822846 Method of manufacturing a disk drive spindle motor Oct. 20, 1998
5746515 Dynamic-pressure gas bearing May. 5, 1998
5707154 Hydrodynamic fluid pressure bearings Jan. 13, 1998
5700092 Integrated shaft self-compensating hydrostatic bearing Dec. 23, 1997
5700547 Sliding bearing Dec. 23, 1997
5697708 Hydrodynamic bearing with reduced temperature sensitivity Dec. 16, 1997
5551226 Disk for open end spinning Sep. 3, 1996
5328270 Hydrodynamic pump Jul. 12, 1994
5073037 Spindle assembly Dec. 17, 1991
5063322 Feed mechanism with a sliding member guided by a hydrostatic bearing Nov. 5, 1991
5044167 Vapor cycle cooling system having a compressor rotor supported with hydrodynamic compressor bearings Sep. 3, 1991
4944609 Oil film bearing and bushing Jul. 31, 1990
4930907 Stiff air bearing for large radial load Jun. 5, 1990
4798480 Bearing system with active reservoir between two axially spaced hydrodynamic bearings Jan. 17, 1989
4772137 Oil film bearing and bushing Sep. 20, 1988
4766788 Superprecision lathe Aug. 30, 1988
4696584 Self-cleaning air bearing comprising a flow equalizing groove at the bearing periphery Sep. 29, 1987
4690572 Static pressure gas bearing apparatus for turbocharger Sep. 1, 1987

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