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Class Information
Number: 384/613
Name: Bearings > Rotary bearing > Antifriction bearing > Thrust bearing > Ball bearing > Plural rows balls or tandem thrust
Description: Subject matter having more than one axially spaced row of balls, which may or may not have means to distribute force among the rows.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8573849 Bearing arrangement having at least two parts rotatable relative to one another Nov. 5, 2013
8511906 Oil-sealed mud motor bearing assembly with mud-lubricated off-bottom thrust bearing Aug. 20, 2013
8439338 Rotary table device provided with cooling structure and rotary bearing provided with cooling structure May. 14, 2013
8425122 Angular contact rolling-element bearing, especially double row ball roller bearing in tandem arrangement Apr. 23, 2013
8272536 Beverage dispensing apparatus with butterfly plates and a molded O-ring retainer Sep. 25, 2012
8167499 Rolling bearing device with sensor May. 1, 2012
8057104 Angular contact roller bearings, in particular multi-row ball roller bearings Nov. 15, 2011
7976224 Eccentric thrust bearing assembly Jul. 12, 2011
7966904 Low axial play drive system Jun. 28, 2011
7806596 High speed bearing system with bind-free axial displacement Oct. 5, 2010
7604414 Electrical machine and its bearings Oct. 20, 2009
7467933 Scroll-type fluid displacement apparatus with fully compliant floating scrolls Dec. 23, 2008
7401982 Bearing with pass or fail wear gauge Jul. 22, 2008
7314100 System for use in a bore hole for axially coupling a tubular end and a mandrel Jan. 1, 2008
7104698 Thrust bearing for down-hole tool Sep. 12, 2006
7104772 Screw compressor Sep. 12, 2006
7056030 Pivot bearing for a swing arm of a hard disk drive device Jun. 6, 2006
7040813 Rolling bearing apparatus for swing arm May. 9, 2006
7036991 High-precision spindle assembly for a davenport automatic screw machine May. 2, 2006
6799895 Cartridge-type thrust bearing Oct. 5, 2004
6779925 Bearing assembly Aug. 24, 2004
6744605 Low-profile pivot assembly Jun. 1, 2004
6741001 Spindle motor and bearing assembly May. 25, 2004
6293705 Annular gimbal assembly suitable for disc drive spindle bearings and method of making same Sep. 25, 2001
6280537 Ball bearing Aug. 28, 2001
6267512 Suspension thrust bearing device Jul. 31, 2001
6227714 Compound bearing assembly for swing arm of hard disc drive May. 8, 2001
6050728 Compound ball bearing type pulley Apr. 18, 2000
6050729 Compound ball bearing Apr. 18, 2000
5969449 Rotary machine of inner rotor type Oct. 19, 1999
5826989 Compound ball bearing Oct. 27, 1998
5820273 Hard disc drive with a compound bearing assembly Oct. 13, 1998
5806989 Compound ball bearing for swing arm unit and swing arm unit for hard disc drive device Sep. 15, 1998
5803618 Compound ball bearing Sep. 8, 1998
5690434 Downhole tool bearing assembly Nov. 25, 1997
5667314 Horizontal thrust bearing assembly Sep. 16, 1997
5639168 Ball bearing for supporting a spindle rotating at high speed Jun. 17, 1997
5540575 High speed rotating apparatus having face-to-face angular contact ball bearings Jul. 30, 1996
5248204 Short stack bearing assembly Sep. 28, 1993
5086851 Combination thrust and radial bearing for use in down-hole drilling tools Feb. 11, 1992
5074681 Downhole motor and bearing assembly Dec. 24, 1991
5048982 Rotary structure Sep. 17, 1991
4997292 Vertical bearing assembly Mar. 5, 1991
4934843 Rotary structure Jun. 19, 1990
4892423 Rotary actuator and fabrication process therefor Jan. 9, 1990
4789254 Large antifriction bearing Dec. 6, 1988
4778287 Annular multi-row bearing with shaped-wire races Oct. 18, 1988
4750879 Bearing arrangement Jun. 14, 1988
4729675 Downhole motor and bearing assembly Mar. 8, 1988
4702096 Apparatus and process for providing tubing with at least one internal spiral groove or fin Oct. 27, 1987

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