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Class Information
Number: 384/115
Name: Bearings > Rotary bearing > Fluid bearing > Radial > Shaft recess
Description: Subject matter wherein an inner relatively rotating element has a groove, or passage for receiving the fluid.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
5997180 Circumferential flow type dynamic pressure bearing Dec. 7, 1999
5944427 Dynamic pressure gas bearing structure and method of manufacturing the same as well as method of using the same Aug. 31, 1999
5924798 Hydrodynamic bearing apparatus and method for manufacturing thereof Jul. 20, 1999
5909966 Self-acting air bearing Jun. 8, 1999
5909339 Method and apparatus for cleaning air in a hard disk drive Jun. 1, 1999
5906440 Dynamic pressure type fluid bearing device May. 25, 1999
5822846 Method of manufacturing a disk drive spindle motor Oct. 20, 1998
5769544 Dynamic pressure pneumatic bearing device and manufacturing method thereof Jun. 23, 1998
5746515 Dynamic-pressure gas bearing May. 5, 1998
5731831 Dynamic-pressure gas bearing structure and optical deflection scanning apparatus Mar. 24, 1998
5713670 Self pressurizing journal bearing assembly Feb. 3, 1998
5715116 Spindle motor for driving memory disk Feb. 3, 1998
5700092 Integrated shaft self-compensating hydrostatic bearing Dec. 23, 1997
5700547 Sliding bearing Dec. 23, 1997
5667308 Bearing device for use in a motor Sep. 16, 1997
5628567 Dynamic pressure gas bearing structure May. 13, 1997
5606448 Polygon scanner and production process thereof Feb. 25, 1997
5567056 Turbocharger drive and planet bearing therefor Oct. 22, 1996
5556207 Hydrostatic/hydrodynamic flywheel bearing for a press Sep. 17, 1996
5533813 Dynamic air pressure bearing Jul. 9, 1996
5448121 Pneumatic and magnetic bearing type motor Sep. 5, 1995
5430590 Spindle system for a disk drive Jul. 4, 1995
5427456 Fluid bearing with asymmetrical groove pattern Jun. 27, 1995
5415476 Dynamic pressure bearing with cross grooves between two axially separated groups of oblique grooves May. 16, 1995
5403098 Hydrodynamic bearing device Apr. 4, 1995
5385408 Rocker tip roller hydrodynamic bearing oil slots Jan. 31, 1995
5370463 Hydrodynamic gas bearing Dec. 6, 1994
5328272 Spindle system for a disk drive Jul. 12, 1994
5279497 Radial sliding-contact bearing for rotary rolls Jan. 18, 1994
5273368 Hydrodynamic gas bearing Dec. 28, 1993
5271677 Method for eliminating whirl instability in a gas supported bearing Dec. 21, 1993
5240332 Dynamic pressure bearing device Aug. 31, 1993
5209650 Integral motor and pump May. 11, 1993
5181783 Apparatus for eliminating whirl instability in a gas supported bearing Jan. 26, 1993
5172021 Deflector motor with gas bearing and magnet thrust bearing Dec. 15, 1992
5069515 Optical deflector of air bearing type Dec. 3, 1991
5069558 Air-supported laying roller for textile yarn Dec. 3, 1991
5046863 Dynamic pressure bearing device Sep. 10, 1991
4969797 Fan motor Nov. 13, 1990
4932313 Air bearing piston and cylinder assembly Jun. 12, 1990
4920288 Piston engine with dynamic groove bearing internal to piston and isolated from compression space Apr. 24, 1990
4820950 Fluid Bearing Apr. 11, 1989
4808070 Fluid bearing Feb. 28, 1989
4806075 Turbomolecular pump with improved bearing assembly Feb. 21, 1989
4797009 Dynamic pressure air bearing Jan. 10, 1989
4744676 Gas bearing and method of making it May. 17, 1988
4710035 Inherent variable fluid restrictor Dec. 1, 1987
4678348 Radial spiral-groove bearing Jul. 7, 1987
4602873 Vibration-controlling bearing Jul. 29, 1986
4596474 Bearing system comprising two facing hydrodynamic bearings Jun. 24, 1986

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