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Class Information
Number: 384/108
Name: Bearings > Rotary bearing > Fluid bearing > Radial and thrust > Spherical
Description: Subject matter wherein a relatively rotating element has at least a portion of the bearing surface concaved, or ball shaped.










Sub-classes under this class:

Class Number Class Name Patents
384/109 Gas bearing 29


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8511898 Gas bearing and fabrication method Aug. 20, 2013
8439338 Rotary table device provided with cooling structure and rotary bearing provided with cooling structure May. 14, 2013
8337088 Shock absorption device for motor bearing system Dec. 25, 2012
8186882 Gas bearing and fabrication method May. 29, 2012
8075190 Spherical plain bearing pocket arrangement and wind turbine having such a spherical plain bearing Dec. 13, 2011
8052328 Bearing device with sliding bearing Nov. 8, 2011
7854599 Circulating pump and method for the fluid lubrication of a spherical bearing in an electric motor Dec. 21, 2010
7425097 Inertial measurement unit with wireless power transfer gap control Sep. 16, 2008
7382070 Spherical bearing, electric motor and circulation pump Jun. 3, 2008
7125169 Hydrodynamic pivot bearing Oct. 24, 2006
7090401 Grooving pattern for grooved fluid bearing Aug. 15, 2006
6609829 Hydrodynamic bearing for motor Aug. 26, 2003
6561086 Automatic aligning pressing apparatus May. 13, 2003
6024492 Hemispherical bearing apparatus Feb. 15, 2000
5980113 Asymmetric sealing means for fluid dynamic bearings Nov. 9, 1999
5971615 Hemispheric bearing apparatus for preventing deformation of hemisphere Oct. 26, 1999
5957587 Air dynamic bearing Sep. 28, 1999
5957588 Air bearing for a spindle Sep. 28, 1999
5952752 Hemispherical dynamic pressure bearing Sep. 14, 1999
5938342 Semi-spherical bearing Aug. 17, 1999
5934810 Hemispheric fluid bearing apparatus Aug. 10, 1999
5898247 Electric motor having a spherical bearing Apr. 27, 1999
5883453 Hemispherical dynamic pressure bearing Mar. 16, 1999
5854524 Motor with semi-spherical bearing Dec. 29, 1998
5848844 Fluid bearing Dec. 15, 1998
5822152 Ultra-slim disk storage unit with an enclosed circuit board and a hydrodynamic bearing assembly which forms a stable meniscus Oct. 13, 1998
5801464 Pressurized air-ionization ground for an air bearing spindle Sep. 1, 1998
5789839 Aerostatic and aerodynamic bearing for a motor Aug. 4, 1998
5760509 Spindle motor using an air bearing Jun. 2, 1998
5709480 Hemispherical fluid bearing Jan. 20, 1998
5707718 Porous-plastic bearing and method of manufacturing porous-plastic bearing Jan. 13, 1998
5642943 Self-aligning air bearing for use with servo-track writer Jul. 1, 1997
5518319 Non-linear hydrodynamic bearing May. 21, 1996
5488523 Ultra-slim disk storage unit having a hydrodynamic bearing assembly which forms a stable meniscus Jan. 30, 1996
5485891 Cone drill bit Jan. 23, 1996
5449235 Self-aligning rotor-hydrostatic bearing system Sep. 12, 1995
5328271 Hydrodynamic spindle bearing for ultra-slim disk storage unit Jul. 12, 1994
5284391 Apparatus for adjustment of a hydrodynamic spindle bearing assembly Feb. 8, 1994
5172981 Hydrostatic bearing apparatus Dec. 22, 1992
5137372 Spherical fluid bearing apparatus Aug. 11, 1992
5073036 Hydrostatic bearing for axial/radial support Dec. 17, 1991
5014581 Apparatus for machining May. 14, 1991
4856918 Bearing device Aug. 15, 1989
4805474 Structure for supporting governor shaft of automatic transmission Feb. 21, 1989
4798476 Dynamic pressure type fluid bearing Jan. 17, 1989
4730989 Rotodynamic pump with spherical bearing Mar. 15, 1988
4728201 Low velocity energized gas particle bearing Mar. 1, 1988
H174 High spin compound air bearing Dec. 2, 1986
4547081 Dynamic pressure type fluid bearing Oct. 15, 1985
4318572 Tension-compression swivel joint with hydraulic force reaction Mar. 9, 1982

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