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| Number | Title | Issue Date |
| 7435007 | Self-aligning roller bearing A roughness of an outer ring raceway surface 14 formed on an inner peripheral surface of an outer ring 13 is made larger than a roughness of inner ring raceway surfaces 12a, 12b of an inner ring 11. Also, an average r... | 10/14/2008 |
| 7401982 | Bearing with pass or fail wear gauge A bearing includes an inner race having a rotational axis and an outer race sharing the rotational axis of the inner race. Rolling bearing members are constrained between the inner race and the outer race. A retention lip is provided which is adapted to maintain a p... | 07/22/2008 |
| 7384198 | Rolling bearing In a rolling bearing structured such that a plurality of rolling elements are respectively held between inner and outer rings by a retainer, grease is sealed in by a seal, a rotary body with the outer ring fitted therewith and a shaft with the inner ring fitted ther... | 06/10/2008 |
| 7325974 | Pulley rotation support apparatus An endless belt (11) to be provided on a driven pulley (4b) and a pulley rotation support apparatus for supporting the driven pulley (4b). In the pulley rotation support apparatus, there is used a three-point-contact-type or four-p... | 02/05/2008 |
| 7275319 | Rolling element bearing having starved lubrication conditions A rolling element bearing comprises an inner ring and an outer ring which are each provided with a raceway, and a series of rolling elements which are in contact with the raceways of each ring. A lubricant film is provided in the contacts between the rolling element... | 10/02/2007 |
| 7264399 | Rolling element bearing having starved lubrication conditions A rolling element bearing comprises an inner ring and an outer ring which are each provided with a raceway, and a series of rolling elements which are in contact with the raceways of each ring. A lubricant film is provided in the contacts between the rolling element... | 09/04/2007 |
| 7246947 | Concentric radii ball bearing stack A ball bearing stack which includes more than one bearing arranged in face to face relation and sharing a common rotational axis. Each bearing has an inner ring and a concentric outer ring. The inner ring defines an inner race. The outer ring defines an outer race. ... | 07/24/2007 |
| 7228751 | Ball screw mechanism A ball screw mechanism includes a ball screw shaft of a metal material coaxially connected to a rotary driving source, a nut member of a resin material being screwed onto the ball screw shaft, a plate member fixed to an upper surface of the nut member by screw membe... | 06/12/2007 |
| 7198405 | Linear guide way with parabolic profiled grooves An innovative parabolic profiled rolling grooves for linear guide way is disclosed. Cross sectional profile of at least one of the ray-way and the slider grooves is configurated into a parabolic curve so as to avoid the balls to comprehensively contact the grooves a... | 04/03/2007 |
| 7168539 | Pulley unit having one-way clutch A pulley unit comprises a pulley, a shaft relatively rotatable with the pulley and concentrically arranged inner side of the pulley, a one-way clutch interposed in an annular space between the pulley and the shaft, and a ball bearing arranged adjacent to the one-way... | 01/30/2007 |
| 7104695 | Asymmetric hub assembly A hub bearing assembly comprising a hub having a radially outwardly directed flange at one axial end for mounting the wheel of a vehicle, an outer ring having axially spaced raceways and a plurality of rolling elements arranged in two rows in the annular space betwe... | 09/12/2006 |
| 7077575 | Ball bearing An outer ring 3a is formed so as to have a large thickness and the pitch circle diameters Dp of balls 6 are shifted to the inside diameter side of the present ball bearing. The radiuses of curvature Ro, Ri of the section shapes of an outer ring ... | 07/18/2006 |
| 7050226 | Play-free rotary mounting A play-free rotary mounting for a drive roll held on stop surfaces in the axial direction on a cylindrical body, wherein V-shaped annular grooves with an opening angle V are provided at least in one of the end faces of the drive roll and the stop surface located opp... | 05/23/2006 |
| 7025391 | Non-permeable pipe connector structure A non-permeable pipe connector structure, the design of which effectively prevents external material (such as vapor and miscellaneous substances, etc.) intrusion. To obstruct the intrusion of external matter into the pipe connector, a ball bearing holder is disposed... | 04/11/2006 |
| 6942392 | Rolling bearing of a small motor for an information-processing device A rolling bearing 1 is provided to support the rotating member of a small motor of an information-processing device wherein the groove radius ratio of the raceway groove of the inner race 2 is in the range from 52% up to 54%, while the groove radius ra... | 09/13/2005 |
| 6923576 | Rolling bearing and belt continuously variable transmission A rolling bearing has the radius of curvature of the raceway on an inner ring and an outer ring is from not smaller than 50.1% to not greater than 51.9% of the diameter of the balls, and at least one of the compositions of the bearing is obtained by forming an alloy... | 08/02/2005 |
| 6905437 | Power roller bearing of toroidal-type continuously variable transmission unit A power roller bearing of a toroidal-type continuously variable transmission unit that is used for a transmission of an automobile or the like comprises a power roller, an outer race, balls, a retainer, etc. Annular raceway grooves are formed individually on the res... | 06/14/2005 |
| 6896416 | Rolling-bearing and bearing unit A rolling bearing 10 comprises races 11, 12 having a raceway 15, 16 and rolling elements 13 having a rolling contact surface, wherein at least the raceway 15, 16 of the races 11, 12 has a machined surface, and a surface laye... | 05/24/2005 |
| 6869222 | Rolling bearing A full complement angular ball bearing with no cage and having a contact angle from 10 to 45° and an increased number of balls for use under severe conditions. The life is extended by defining the surface roughness of the inner ring and the outer ring, defining the... | 03/22/2005 |
| 6837623 | 4-point contact ball bearing A 4-point contact ball bearing includes four ring-shaped contact surfaces for forming a ring-shaped raceway between them, each ring-shaped contact surface has a sectional profile defined by a concave curve when cut along a plane including a central axis of rotation ... | 01/04/2005 |
| 6827496 | Four-point contact ball bearing A four-point ball bearing includes: an inner ring and an outer ring defining raceway grooves, respectively. Each of the raceway grooves is constituted by two circular arcs different in curvature provided on opposite sides of a widthwise center of the raceway groove.... | 12/07/2004 |
| 6817770 | Single row deep groove radial ball bearing The radius of curvature r1, r2 of the cross-sectional shape of an inner ring raceway 11d is made smaller at a central portion 19 and larger at end portions 20. A contact ellipse at the end portions is made small by increasin... | 11/16/2004 |
| 6792822 | Ball groove profile of ball screw In a ball groove profile of a ball screw, an outer diameter portion of a screw shaft of the ball screw and a substantially semi-circular ball rolling portion of a ball groove of the ball screw are connected to each other through arcuate portions. The radius of curva... | 09/21/2004 |
| 6742933 | Bearing and method of assembling the bearing A bearing for use in a water pump or similar apparatus and a method of assembling the bearing. The bearing has a stepped shaft and a counterbored raceway at the fan or pulley end which allows for use of a larger number of balls in the raceway at the fan or pulley en... | 06/01/2004 |
| 6719458 | Ball bearing An outer ring 3a is formed so as to have a large thickness and the pitch circle diameters Dp of balls 6 are shifted to the inside diameter side of the present ball bearing. The radiuses of curvature Ro, Ri of the section shapes of an outer ring ... | 04/13/2004 |
| 6715924 | Rolling bearing Within bounds on both sides of an axial center of each of the raceways of an outer and inner ring, a curvature radius of a raceway portion in a dimensional range covering at least 45% of a raceway width with respect to the axial center thereof is defined to be withi... | 04/06/2004 |
| 6682223 | Ball bearing A ball bearing is described, which comprises an outer ring having on its inner periphery an outer raceway, an inner ring having on its outer periphery an inner raceway, plural balls rotatably disposed between the outer raceway and the inner raceway, a cag... | 01/27/2004 |
| 6676297 | Rolling bearing The frequencies generated based on the undulations existing on the inner and outer ring raceways 8, 10 and on the rolling surface of the balls 11, 11 are out of coincidence with the rotational frequency itself of the rotation member supported by the rolli... | 01/13/2004 |
| 6582128 | Ball bearing and bearing device A deep groove ball bearing has an inner ring, an outer ring and a plurality of balls located between the inner ring and the outer ring. A profile deformation quantity of a raceway groove of the inner ring and a profile deformation quantity of the outer ri... | 06/24/2003 |
| 6568856 | Rolling bearing A rolling bearing to exhibit outstanding initial (cage) acoustic characteristics at the start of operation under a low temperature atmosphere, suppress fretting damages (abrasions) and reduce bearing torque by making the radius of curvature of the cross-s... | 05/27/2003 |
| 6561698 | Design of rolling bearings An improved rolling bearing. The improved rolling bearing utilizes a novel design in the construction and location of the raceways or rings in which the rolling elements are secured. This novel design provides for reducing of slide of the parts rolling el... | 05/13/2003 |
| 6554480 | Single row deep groove radial ball bearing The radius of curvature r1, r2 of the cross-sectional shape of an inner ring raceway lid is made smaller at a central portion 19 and larger at end portions 20. A contact ellipse at the end portions is made small by increasing the radius of curvature r2 of... | 04/29/2003 |
| 6540405 | Ultrathin-walled rolling bearing The arrangement is such that the ratio of the diameter of balls 3 in the ultrathin-walled ball bearing to the pitch circle diameter PCD is not more than 0.03, and that the balls 3 are arranged in a single row and in two-point contact with the raceway surf... | 04/01/2003 |
| 6524009 | Rolling bearing A rolling bearing in which the attainment of excellent current-carrying capability is compatible with cost reduction. The rolling bearing comprises an inner ring, an outer ring, and a plurality of rolling elements arranged between the inner and outer ring... | 02/25/2003 |
| 6524008 | Ball bearing An outer ring 3a is formed so as to have a large thickness and the pitch circle diameters Dp of balls 6 are shifted to the inside diameter side of the present ball bearing. The radiuses of curvature Ro, Ri of the section shapes of an outer ring raceway 2a... | 02/25/2003 |
| 6481898 | Ball bearing A ball bearing in which the heat value in an inner ring is decreased and the heat value in an outer ring is brought closer to the heat value in the inner ring by making the radius of curvature for the inner ring groove larger, and defining the radius of c... | 11/19/2002 |
| 6474872 | Ball bearing In the ball bearing, the ratio of the radius of curvature of an inner race raceway 4 to the outside diameter of balls 8, 8 is set in the range of 0.51 to 0.54. Also, the ratio of the radius of curvature of an outer race raceway 6 to the outside diameter o... | 11/05/2002 |
| 6474871 | Anti-friction bearing and a motor including such a bearing An anti-frictional bearing which is reduced in its asynchronous rotational run out so that the cumbersome analyzing operation of the raceway surface and selecting operation of inner and/or outer races are not required. The bearing will contribute for the ... | 11/05/2002 |
| 6450692 | Rolling device An arrangement in which respective roughnesses are defined for orbital grooves of inner and outer rings and a surface of rolling members which are constituents of a rolling bearing and in which their conditions of contact are controlled whereupon a minimu... | 09/17/2002 |
| 6435725 | Sheave assemblies and pulley blocks A sheave assembly for use in a high performance pulley block has an inner race 14, a sheave 10 defining an outer race and a plurality of balls 13 arranged between the outer race of the sheave 10 and the inner race 14, so as rotatably to mount the sheave o... | 08/20/2002 |
