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Class 384/447 - Elliptical, eccentric, alternating roller, or mass ball features; compensating for nonthermal deformation; centrifugal preload


Subclass of Class 384 - Bearings
Definition: Subject matter wherein the bearing or bearing support structure
No. of patents: 68
Last issue date: 10/25/2011


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NumberTitleIssue Date
8043008Rolling-element bearing unit
The invention relates to a rolling-element bearing unit for rotatably bearing two components, nested into each other, which rotate about separate rotational axes that are at an angle to each other, especially the roll core and roll sleeve of a width stretching roll ...
10/25/2011
7547144Crossed roller bearing
The thickness of a crossed roller bearing is reduced and attachment of a lid member 17 to a loading hole 16 from which rollers 15 are loaded is facilitated. Raceway grooves 13, 14 are respectively formed in an inner ring 11 and an ...
06/16/2009
7308730Base member for swivel caster
A base member for swivel caster comprises a fixed base, a rotation base and a hollow staff. The fixed base includes a ring member, and a plurality of first raceways lathed in an inward surface of the ring member. A support cavity is defined through a center of the r...
12/18/2007
7275872Adjustable bearing
A bearing that can be reoriented to move its center is disclosed. The center of the bearing is offset from the center of its outer housing. Should the shaft extending through the bearing need to be raised or lowered the outer housing is simply rotated in its recepta...
10/02/2007
7234334Saddle for backing assemblies in a rolling mill
A saddle for a backing assembly in a rolling mill has non-cylindrical bearing surfaces that accommodate wear by allowing the saddles to self-align. The non-cylindrical bearing surfaces help prevent the needle bearings from being pinched and driven into the gear ring...
06/26/2007
7223018Biaxial linear-revolving position control and table system using the same
A biaxial linear-revolving guide unit is disclosed, which is comprised of a pair of linear motion guide units each composed of a guide rail and a slider fit over the guide rail, and a revolving bearing installed between the linear motion guide units to joint them fo...
05/29/2007
7128469Lightweight bearing and wave gear drive
A lightweight bearing and wave gear drive are provided. An outer or inner bearing ring of the bearing has fixing holes to enable the ring to be attached to another member. The parts of the bearing on which raceway surfaces are formed are made of an iron-based materi...
10/31/2006
7073948Roller bearing
A roller bearing (e.g., a cross taper roller bearing) includes an outer ring, an inner ring and rolling elements (e.g., taper rollers) located between the inner and outer rings. The rolling elements are kept at a distance by a cage formed from a number of individual...
07/11/2006
7033081Ball bearing
A ball bearing in which an annular cage with a plurality of pockets formed through the annular cage is incorporated between inner and outer rings, a ball is housed in each pocket, the annular cage is guided by the outer ring, and a relationship between a radial clea...
04/25/2006
6951146Method and apparatus for preloading pinion bearings
A method for determining a thickness of a shim for setting up a predetermined preload of a bearing assembly that rotatably supports a shaft within a housing. The bearing assembly includes front and rear tapered roller bearings. The shim is disposed between a bearing...
10/04/2005
6948855Multi-stage cross roller bearing
A two-stage cross roller bearing (1) includes a first cross roller bearing (10) and a second cross roller bearing (20) that are disposed concentrically along a plane that is perpendicular to the bearing axis 1a. The inner ring of t...
09/27/2005
6936951Smart sonic bearings and method for frictional force reduction and switching
An ultrastiff precision sonic bearing assembly and method thereof for controlling an effective coefficient of friction between two elements in slidable contact configured along an interface under a force sufficient to maintain contact and having static friction ther...
08/30/2005
6682220Lightweight bearing and wave gear drive
A lightweight bearing and wave gear drive are provided. An outer or inner bearing ring of the bearing has fixing holes to enable the ring to be attached to another member. The parts of the bearing on which raceway surfaces are formed are made of an iron-b...
01/27/2004
6616338Extended load zone bearing
A bearing for providing the ability to more optimally and evenly share the load among a set of rolling elements to reduce maximum roller load in a cost effective and efficient manner, is provided. The bearing may include an outer race and an inner race, w...
09/09/2003
6575631Rolling bearing and rolling bearing device
Into a raceway groove formed between outer and inner races, there are incorporated a plurality of rolling elements of which outside diameters serving as the rolling contact surfaces thereof each has a curvature in the axial direction as well and also each...
06/10/2003
6550971Eccentric system
The present invention relates to a radial piston pump which is equipped with at least one operating piston, the said operating piston being driven by a shaft, wherein the shaft on its output end is provided with an eccentric ring accommodating a roller be...
04/22/2003
6547441Cam mechanism
A cam mechanism incorporating a highly precise bearing structure that improves the dynamic stability of the cam mechanism's rotating output component. Relevant structures consist of a worm gear driven rotating shaft driving a rotating output shaft support...
04/15/2003
6419069Cross roller assembly and cross roller guiding apparatus using the same
A cross roller assembly suitable for use with rollers disposed in a cross roller arrangement is provided for the purpose of preventing the rollers from skewing as much as possible to thereby guide them in a stable manner. The cross roller assembly (21) in...
07/16/2002
6398400Bearing bushing and machine part for receiving the bearing bushing
A bearing bushing has an outer lateral surface (2), an inside bore (1) arranged eccentrically to the lateral surface (2), as well as a flange (3) extending beyond the lateral surface. In the flange (3), on a circle (5) arranged concentrically to the later...
06/04/2002
6382836Rolling bearing
Into a raceway groove 3 formed between outer and inner races 1 and 2, there are incorporated a plurality of rolling elements 5, 5 of which outside diameters 5a serving as the rolling contact surfaces thereof each has a curvature in the axial direction as ...
05/07/2002
6273616Mounting arrangement for a shaft
The invention concerns an arrangement for mounting a shaft (1) comprising a shaft journal (8) arranged eccentric to a central longitudinal axis (7) of the shaft (1) on an end portion (6) of the shaft (1), said end portion (6) being supported by a first ne...
08/14/2001
6272970Motor-and-pump unit for a vehicle hydraulic brake system
A motor-and-pump unit having an electric motor in combination with a housing of the pump. The pump has at least one displaceable pump piston. To that end, on the side toward the pump housing and originating at one end wall, the electric motor has a bearin...
08/14/2001
6240826Radial piston pump
The invention concerns a radial piston pump comprising a rotating pump shaft having an end portion connected to a rotationally fixed eccentric ring, said radial piston pump further comprising an eccentric bearing arranged on an outer peripheral surface of...
06/05/2001
6220760Three-ring needle bearing
A three-ring needle bearing with a central support shaft, a center ring around the shaft, an outer ring around the center ring, and an inner needle array between the shaft of the center ring and an outer needle array between the center ring and the outer ...
04/24/2001
6202538Radial piston pump
A radial piston pump comprising a rotating pump shaft (2), one portion (1) of which is connected to an eccentric ring (4) which is arranged rotationally fast thereon, said radial piston pump further comprising a needle roller bearing arranged on an outer ...
03/20/2001
6193417Belt tensioner device and method for making same
A method for forming a clamping device comprising of a swiveling body made of plastic, a plain bearing bushing mounted radially inside the plastic swiveling body, a rolling bearing for mounting a clamping roll arranged eccentrically to the bearing bushing...
02/27/2001
6132098Four-ring eccentric bearing for printing-machine cylinders
In order to achieve precise adjustment of cylinders with a four-ring eccentric bearing for printing-machine cylinders under favorable conditions of oscillation and rotation, roller bodies (8, 9, 10) are provided between the three pairs of surfaces (5, 6, ...
10/17/2000
6004038Eccentric bearing with adjustment lever
An eccentric bearing includes inner and outer race rings, an eccentric ring positioned between the inner and outer race rings, two spaced apart rows of roller elements positioned between the inner race ring and the eccentric ring, and two spaced apart row...
12/21/1999
5961221Cross roller bearing and coriolis gear device
A cross roller that may rotate at a high speed with high precision is provided. A first conical roller 7 for receiving loads in a first axial direction B and a radial direction and a second conical roller 8 for receiving loads in a second axial direction ...
10/05/1999
5785430Eccentric bearing assembly
An efficient, cost effective eccentric bearing assembly is provided for use in a multiple piston hydraulic pump. The eccentric bearing assembly includes a roller bearing having an annular race. The race includes a groove around its outside perimeter. The ...
07/28/1998
5658081Adjusting mechanism for a prestressed bearing arrangement
A prestressed adjusting mechanism of a bearing is provided with a first and a second rhombic prism ring which are placed opposite each other with a flexible partitioning ring inserted between them. There are multiple channel holes on the flexible partitio...
08/19/1997
5632560Eccentric bearing
An eccentric bearing having three bearing races arranged one over another, of which one with the center ring forms an inner rolling bearing and the other with the center ring forms an outer rolling bearing, wherein the center ring in each instance consist...
05/27/1997
5577846Eccentric rolling bearing device
In a rolling bearing device mounted on an eccentric mounting shaft, its outer race ring is formed by pressing, and the outer cylindrical surface thereof is left as it is, not polished. Hence, an oil film is stably formed on the whole outer cylindrical sur...
11/26/1996
5575572Bearing bushing
A bearing bushing supports a bearing assembly of a cylinder journal in a frame bore. The bearing bushing utilizes an inner ring and an outer ring. Both rings are provided with varying wall thickness. A pressure chamber is defined between the two rings in ...
11/19/1996
5441350Structure of a cross roller bearing
The structure of the cross roller bearing does not require fixing bolts, rivets or holders for the divided races and can firmly assemble the divided races together. The cross roller bearing includes the inner race having a raceway groove and an engagement...
08/15/1995
5409316Crossed roller bearing
A crossed roller bearing in which the rollers are oriented with their axes of rotation effectively crossed perpendicular to each other can be made from four molded plastic parts which are outer and inner split rings where the outer rings are joined side-b...
04/25/1995
5362158Bearing unit and electric pump using the same
A bearing unit which comprises a bearing main body and a balancer. The bearing main body includes an inner ring member which is fixed to one end of an output shaft of a drive source and which has its axis eccentric with respect to an axis of the output sh...
11/08/1994
5279078Method for cleaning articles
A method for cleaning articles with pellets. The apparatus has a housing where an article can be cleaned with pellets. A first auger is rotatably disposed in the housing and rotatably passes therethrough for conveying pellets out of the housing after the ...
01/18/1994
5234270Axially-aligning eccentrically-adjustable three-ring anti-friction roller bearing
The elements of an axially-aligning, eccentrically-adjustable, three-ring anti-friction roller bearing are arranged to compensate for inevitable small deformation and bore alignment errors for the journals of blanket cylinders of printing presses. Rows of...
08/10/1993
5221146Structure of bearing of geared shaft
A structure of bearing journaling a geared shaft is disclosed in which a piezoelectric sensor is installed in a space between an outer ring of the bearing and its casing for detecting at least one of a force applied to the bearing and generated due to a m...
06/22/1993
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