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Class 384/494 - Ball and roller bearings


Subclass of Class 384 - Bearings
Definition: Subject matter including a roller bearing.
No. of patents: 28
Last issue date: 09/01/2009


NumberTitleIssue Date
7581889Integral tandem bearing for high speed flexible shafts
An integral tandem bearing assembly for supporting a main shaft in a gas turbine engine is provided. The tandem bearing assembly comprises two bearing assemblies connected by integrated inner ring. ...
09/01/2009
7572061Locating bearing assembly for wind turbine gearbox shaft
A locating bearing assembly (10) is provided that optimizes load distribution between bearing rows and for all rolling elements within the rows in either positive or negative torque conditions, by combining a single row tapered roller bearing with an angular ...
08/11/2009
7427163Self-aligning antifriction bearing and cage for said self-aligning antifriction bearing
The invention relates to a self-aligning antifriction bearing (1) comprising at least one first row (9) of rolling bodies (11) and a second row (10) of rolling bodies (11) adjacent to said first row (9) of rolling bodies (
09/23/2008
7364364Cartridge bearing
A bearing assembly including an inner ring, an outer ring, a ball bearing assembly, a needle bearing assembly, and seals. The inner ring defines a ball raceway and a needle bearing raceway. The outer ring defines a ball raceway and a needle bearing raceway. A plural...
04/29/2008
7267489Sealing arrangement for rolling bearing and spindle of machine tool
A bearing assembly includes a double-row cylindrical roller bearing having no seals and having a grease sealed in its internal space. A double-row angular ball bearing having seals is provided in juxtaposition with one end face of the double-row cylindrical roller b...
09/11/2007
7004861Pulley unit
A pulley unit improved in axial positioning of a cage of a one-way clutch is provided. An outer radius of an orbital portion of inner rings of two rolling bearings disposed at both axial sides of the cage are designed to be larger than an inner radius of the cage, s...
02/28/2006
7001293Continuously variable transmission (CVT) assembly and method of axially positioning pulley members of a CVT
A continuously variable transmission (CVT) assembly includes first and second pulley pairs having a drive belt extended therebetween. A transmission case cover includes a threaded aperture. A threaded sleeve and bearing assembly is positioned on a stationary pulley ...
02/21/2006
6926446Radial self-aligning rolling bearing
Radial self-aligning rolling bearing including an outer ring, an inner ring, and balls which are arranged to roll in the raceways of the rings, and also spherical rollers together as rolling elements, which are all guided in a cage. The balls are larger in diameter ...
08/09/2005
6732631Needle bearing and pump unit having a needle bearing
A needle bearing for use in a pump has an inner race, embodied as an eccentric sleeve, needles, and an outer race with rims oriented radially inward on both of its face ends, of which one rim is intended to secure the axial position of the needles and the outer race...
05/11/2004
6036371Rolling bearing unit for vehicle wheel
A rolling bearing unit for a vehicle wheel comprising an outer ring formed with first and second outer ring raceways, a hub formed with a first inner raceway, and with a housing portion for an outer ring of a constant velocity joint, an inner ring formed ...
03/14/2000
5813770Hub of a bicycle
A hub of a bicycle includes a hub shell which has two dust caps threadedly engaged to both ends of the hub shell, a sleeve inserted in the hub shell and located between the two dust caps, an axle rotatably inserted in the sleeve and has a first and a seco...
09/29/1998
5658666Rolling bearing
A rolling element of a rolling bearing is made of a continuously cast bearing steel, and the center segregation rate of carbon, C/C0, of the bearing steel material satisfies a condition, 0.9ࣘC/C0 ࣘ1.1, where C is the concentratio...
08/19/1997
5383729Hub assembly for a bicycle
A hub assembly for a bicycle includes an axle having a first end and a second end each defining an outer thread formed on a peripheral portion thereof. A hub member is rotatably mounted around the axle. A first bowl member and a second bowl member are res...
01/24/1995
5382858Driving motor for an electric car
An electric motor for an electric car, in which an outer ring of a ball bearing used in the non-work side of a rotating shaft is supported fixedly by a rear bracket so that the shaft is fixed in the axial direction move. A cylindrical roller bearing is us...
01/17/1995
5071265Hollow roller bearing assembly for both radial and axial loads
A roller bearing assembly for both radial and axial loads comprises an annular series of hollow roller bearings within associated inner and outer annular bearing races. Each race has an integral end flange which projects generally radially toward the oppo...
12/10/1991
4921362Bearing assembly with seal
The present invention provides a bearing assembly for use in a display assembly having a plurality of louvers which rotate in synchronism with each other and, in doing, displays different advertising messages. The bearing assembly includes a housing havin...
05/01/1990
4618271Serial bearing assembly
Bearing assemblies use serial bearings in order to extend the operational speeds for the bearings. Speed distribution planetary gears are mounted upon an intermediate ring disposed between two other rings. Each of the rings has bearing surfaces which are ...
10/21/1986
4605320Device for supporting spindles
A support is provided for high-precision, long threaded spindles which are extremely thin, and which are employed in systems in electronic reproduction technology, machine tools, measuring instruments, and the like. The support includes a bearing block pi...
08/12/1986
4573809Shaft mounting
A mounting of a shaft in the bore of a housing by two antifriction bearings mounted in a sleeve at a distance from each other, the said sleeve being arranged in the bore of a housing having a higher coefficient of thermal expansion than the mounting eleme...
03/04/1986
4505523Prestressed rolling bearing device
The prestressed rolling bearing device comprises a cage for guiding and/or retaining a plurality of rolling elements. At least one of the rolling elements has an outside diameter larger than that of the other rolling elements. The rolling element of large...
03/19/1985
4391476Roller bearing
A rolling bearing having rolling means guided in a cage between inner and outer bearing rings, and including a groove on one side of one bearing ring accommodating a radial projection of the cage and another groove on the other side of the bearing ring ha...
07/05/1983
4326759Anti-friction bearing
The present bearing has a one-piece outer race and a one-piece inner race and three concentric circular sets of bearing elements engaged between the outer and inner races at different radii from the axis of the bearing. Two of the sets of bearing elements...
04/27/1982
4306755Gas turbine rotor support systems
A rotor assembly, particularly for a gas turbine engine, comprising a torsionally stiff drive shaft 16 mounted at two spaced locations in first and second bearings 22,23 which are substantially immovable bodily in radial directions. The drive shaft 16 has...
12/22/1981
4273391Device for axial adjustment of a rotatable body
A bearing assembly rotatably supporting a shaft journal having a gear wheel at one end in a cylindrical seat in a housing comprising a one-piece outer ring having threads on its outer periphery cooperating with threads in the cylindrical seat. A plurality...
06/16/1981
4249784Bearing assembly
A bearing assembly comprising a casing, a bearing holder formed with a cavity therein and closely fitted in the casing and at least three bearing units retained in position in the cavity of the bearing holder and arranged in symmetry about the center axis...
02/10/1981
4248487Rolling bearing
The combination comprising a housing, a shaft journal having a gear wheel at one end, and a bearing assembly rotatably supporting the shaft journal in a cylindrical seat in the housing. The assembly includes a one-piece outer ring having threads on its ou...
02/03/1981
4244630Journal mounting for the shaft of a water pump or the like
A pump shaft is journaled in a housing through the intermediary of two metal rings forming the outer races of a ball bearing and a roller bearing whose rotary bodies are in direct contact with the shaft. The two bearing rings, which are relatively axially...
01/13/1981
3966274Roller separator for bit bearings
The bearing capacity of a rotary rock bit is increased even though the total number of rollers in the roller bearing system is actually reduced. A multiplicity of individual separator elements and a multiplicity of cylindrical rollers are positioned aroun...
06/29/1976
 
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