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Class Information
Number: 384/112
Name: Bearings > Rotary bearing > Fluid bearing > Radial and thrust > Grooved thrust bearing surface
Description: Subject matter wherein the thrust bearing surface has a narrow furrow, or hollow cut for receiving the fluid.


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7401980 Axial bearing Jul. 22, 2008
7374340 Fluid dynamic-pressure bearing, spindle motor and recording disk driving device May. 20, 2008
7345392 Spindle motor having a hydrodynamic bearing system Mar. 18, 2008
7318674 Single thrust bearing fluid dynamic bearing motor Jan. 15, 2008
7294946 Motor using dynamic gas bearings Nov. 13, 2007
7290934 Fluid dynamic-pressure bearing device and spindle motor Nov. 6, 2007
7284909 Hybrid orbital fluid dynamic bearing motor Oct. 23, 2007
7267484 Fluid bearing device Sep. 11, 2007
7246945 Oil dynamic bearing, motor supported on oil dynamic bearing and disk drive carrying the motor Jul. 24, 2007
7222861 Sealing in a hydraulic turbine unit May. 29, 2007
7220054 Dynamic pressure bearing apparatus May. 22, 2007
7201517 Hydrodynamic bearing device and a recording disk drive equipped with it Apr. 10, 2007
7178983 Spindle motor and magnetic disk drive Feb. 20, 2007
7125169 Hydrodynamic pivot bearing Oct. 24, 2006
7101084 Dynamic pressure bearing device Sep. 5, 2006
7052254 Oil lubricant retaining bearing structure for a fan May. 30, 2006
7029179 Bearing unit, and motor using same Apr. 18, 2006
7021829 Fluid-dynamic-pressure bearing, spindle motor furnished with the fluid-dynamic-pressure bearing, method of manufacturing rotor assembly applied in the spindle motor, and recording-disk drive f Apr. 4, 2006
7011450 Fluid dynamic bearing device and motor including the device Mar. 14, 2006
7008110 Hydrodynamic pivot bearing Mar. 7, 2006
7004634 Fluid dynamic bearing asymmetry pressure feedback Feb. 28, 2006
6979923 Motor having dynamic pressure fluid bearing and disc drive apparatus provided with the motor Dec. 27, 2005
6980393 Low power spindle motor with a fluid dynamic thrust bearing having a reduced outer diameter Dec. 27, 2005
6980394 Spindle motor and recording disk driving device comprising the same Dec. 27, 2005
6971798 Gas dynamic pressure bearing unit, spindle motor, hard disk drive and polygon scanner utilizing gas dynamic pressure bearing system Dec. 6, 2005
6955469 Dynamic pressure bearing device Oct. 18, 2005
6914358 Spindle motor and disk drive furnished therewith Jul. 5, 2005
6876112 Low power spindle motor with a fixed shaft Apr. 5, 2005
6838795 Low velocity, high pressure thrust pump Jan. 4, 2005
6834996 Motor with dynamic pressure bearing Dec. 28, 2004
6793394 Hydrodynamic bearing device Sep. 21, 2004
6782338 Apparatus and method for characterizing grooved journals Aug. 24, 2004
6771460 Spindle motor and magnetic disc device using thereof having radial and thrust bearings Aug. 3, 2004
6768236 Spindle motor and disk drive furnished therewith Jul. 27, 2004
6765326 Cooling device motor having a hydrodynamic bearing with a unitary shaft thrust supporter Jul. 20, 2004
6722785 Fluid dynamic bearing Apr. 20, 2004
6702466 Ceramic dynamic-pressure bearing, motor having bearing, hard disk drive, polygon scanner, and method for manufacturing ceramic dynamic-pressure bearing Mar. 9, 2004
6702408 Single plate hydrodynamic bearing cartridge Mar. 9, 2004
6695480 Opposed flow seal/bearing assembly Feb. 24, 2004
6672767 Dynamic bearing device and motor having the same Jan. 6, 2004
6669368 Spindle motor and bearing assembly Dec. 30, 2003
6664683 Motor and turbo-molecular pump Dec. 16, 2003
6592490 Well pump gear box hydrodynamic washer Jul. 15, 2003
6592262 Bearing performance enhancement utilizing sleeve/hub radial surfaces Jul. 15, 2003
6575633 Hydraulic bearing motor Jun. 10, 2003
6524006 Fluid dynamic bearing assembly Feb. 25, 2003
6505970 Thrust dynamic pressure bearing Jan. 14, 2003
6467963 Fluid bearing equipment Oct. 22, 2002
6469866 Spindle motor and magnetic disc device with hydrodynamic bearing Oct. 22, 2002
6435721 Spindle motor unit having hydrodynamic bearing Aug. 20, 2002

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