Class / Patent application number | Description | Number of patent applications / Date published |
384576000 | Nonmetallic | 22 |
20090016664 | TAPERED ROLLER BEARING - A tapered roller bearing includes: an inner ring; an outer ring; a plurality of tapered rollers which are rollably disposed between the inner ring and the outer ring; and a retainer which retains the tapered rollers at predetermined circumferential intervals. In this tapered roller bearing, a roller coefficient {γ=(the number of rollers×average roller diameter) exceeds 0.94, a number of indentations having a micro recess-like shape are randomly provided at least on a surface of the tapered roller, a surface roughness parameter Ryni of the surface having the indentations falls within a range of 0.4 μm≦Ryni≦1.0 μm, and an Sk value is −1.6 or less. | 01-15-2009 |
20100183257 | TAPER ROLLER BEARING - Provided is a taper roller bearing which is excellent in incorporating properties and has longer axial length of the rollers so as to increase load rating. The taper roller bearing includes an inner race ( | 07-22-2010 |
20110135238 | PLASTIC CAGE AND METHOD FOR PRODUCTING A CAGE - A method for producing a cage of a rolling bearing, for receiving a rolling body. The body of the cage is a plastic material that can be cross-linked by radiation, and is provided with rolling bodies later during the method. The body of the cage is fitted with the rolling bodies only once the structure of the cage has been exposed to the radiation. Also, a cage is disclosed for receiving rolling bodies of a rolling bearing, which has a body consisting of a plastic material. | 06-09-2011 |
20120063713 | ROLLER BEARING WITH A SEGMENTED CAGE - Roller bearing with a segmented cage for guiding the roller bodies, said cage comprising an inner ring on which a plurality of roller bodies can roll, and which can also roll on an outer ring which is concentric to the inner ring, a cage consisting of a plurality of webs which are distributed in a uniform manner over the periphery and which are aligned so as to be parallel to each other and to the longitudinal axis of the cage, and a plurality of lateral plates for joining the webs, two webs and two lateral faces being firmly connected to one another to form a cage segment, which forms a pocket for guiding a roller body and all cage segments are connected to one another in pairs to form an inherently closed cage. | 03-15-2012 |
20120195541 | ROLLING BEARING CAGE AND ROLLING BEARING - A rolling bearing cage, which has two annular elements and cage crossbars connecting the annular elements to each other so as to form pockets for receiving rolling elements arranged between every two adjacent cage crossbars and the annular elements. The cage crossbars have an elastic configuration. Also, a rolling bearing is disclosed that has a rolling bearing cage. | 08-02-2012 |
20120263408 | RETAINER SEGMENT FOR TAPERED ROLLER BEARING, TAPERED ROLLER BEARING, AND METHOD FOR MOUNTING TAPERED ROLLER BEARING - An object of the present invention is to prevent breakup of segments which constitute a split type retainer for a tapered roller bearing, when the tapered roller bearing is being mounted on target equipment, thereby improving operability in the mounting process. A segment for a tapered roller bearing is provided with a predetermined number of posts between a small-diameter-side end fringe which constitutes a small-diameter-side circumferential edge of a split type retainer and a large-diameter-side end fringe which constitutes a large-diameter-side circumferential edge thereof. Pockets are formed between the posts. At least the large-diameter-side end fringe, out of the small-diameter-side end fringe and the large-diameter-side end fringe, is provided with a large-diameter-side engagement piece. When the bearing is mounted, the large-diameter-side engagement piece is engaged with the large-diameter engagement member fitted and fixed onto the bearing's inner ring, whereby the segment is prevented from breaking up. | 10-18-2012 |
20130004113 | RETAINER FOR TAPERED ROLLER BEARING, METHOD FOR MANUFACTURING RETAINER, AND TAPERED ROLLER BEARING - Provided are a retainer for a tapered roller bearing, which can be adapted for various designs without imposing limitations on a design for dimensions of hook portions, a method of manufacturing this retainer, and a tapered roller bearing using this retainer. The retainer for a tapered roller comprises: a radially-smaller-side ring portion ( | 01-03-2013 |
20130177270 | BEARING OF A SHAFT, IN PARTICULAR A MASS BALANCING SHAFT, WITH THE AID OF ROLLER BEARINGS - A bearing system having a shaft which has at least one bearing journal, a needle bearing having a cage ( | 07-11-2013 |
20130223785 | COMB-SHAPED RESIN RETAINER AND ROLLER BEARING - A comb-shaped resin retainer includes an annular section and a plurality of pillar sections which protrude to one side in the axial direction from one side of the annular section. A gap between the pillar sections, adjacent to each other in the circumferential direction serves as a pocket for retaining a cylindrical roller. A side face of the pillar section which serves as the inner face of the pocket is formed in a recessed shape. Each pillar section is tilted so as to become closer to the retainer axial center as the pillar section extends toward the tip of the pillar section. A flat portion is provided on the side face of the pillar section which serves as the inner face of the pocket. The flat portion continues axially from the tip portion of the pillar section to the base end portion thereof. | 08-29-2013 |
20130315522 | SPLIT CAGE FOR ROLLING BEARING AND ROLLING BEARING USING THE SPLIT CAGE - In a split cage for a rolling bearing, cage segments each having a plurality of pockets that accommodate rolling elements are arranged in a circular manner along the circumferential direction. Protrusions are formed on end faces of rims of one of the adjacent cage segments, and grooves are formed in end faces of rims of the other one of the adjacent cage segments. By fitting the protrusions into the grooves, the adjacent cage segments are prevented from moving relative to each other in the radial direction. | 11-28-2013 |
20140016892 | RETAINER FOR ROLLER BEARING AND NEEDLE ROLLER BEARING - A retainer for a roller bearing holds needle rollers within slit-shaped pockets which are formed separately by means of partitions arranged with a fixed pitch in the circumferential direction. Each partition is equipped with two side faces, which face the sides of the adjacent partitions, and an outer-circumferential-side end face, which faces the outer circumferential side of the retainer, and retaining protrusions are formed at the corner parts where the outer-circumferential-side end faces and each side face intersect. Each retaining protrusion protrudes farther to the outer circumferential side from the outer-circumferential-side end face, and protrudes obliquely in the direction in which the aperture width of the pockets is narrowed. For each pocket the positions where the retaining protrusions are formed in the longitudinal direction of the partitions are set so as not to overlap the adjacent pockets. | 01-16-2014 |
20140112609 | CAGE FOR RADIAL ROLLER BEARING - Achieved is a cage for a radial roller bearing that is made by axial draw molding, and that can suppress wear due to friction between the end sections in the axial direction and the guide surfaces of the opposing members, without the assembly direction being restricted, even when guide surfaces of opposing members are not able to support the cage over the entire area of the end surfaces in the axial direction. The cage | 04-24-2014 |
20140153857 | CAGE FOR A TOROIDAL ROLLER BEARING - The invention presents a cage ( | 06-05-2014 |
20140248018 | ROLLER BEARING, RETAINER SEGMENT OF ROLLER BEARING FOR SUPPORTING MAIN SHAFT OF WIND-POWER GENERATOR, AND MAIN SHAFT SUPPORT STRUCTURE OF WIND-POWER GENERATOR - A tapered roller bearing ( | 09-04-2014 |
20140301690 | PRONG TYPE RESIN CAGE FOR DOUBLE ROW ROLLER BEARING AND DOUBLE ROW ROLLER BEARING - A prong type resin cage includes: an annular portion; and multiple cage bars. Each cage bar has a roller guide face formed in each opposed face thereof, the opposed face being opposed to an outer peripheral face of a corresponding one of rollers. The roller guide face is used for roller guide by the outer peripheral face at a rotational speed equal to or lower than a prescribed rotational speed. A cage outer face including an outer peripheral face of the annular portion and radially outer faces of the cage bars has outer ring guide faces of which diameter is increased radially outward by a centrifugal force to decrease a radial clearance between the outer ring guide faces and an inner peripheral face of the outer ring, so that outer ring guide by the inner peripheral face is carried out, at a rotational speed higher than the prescribed rotational speed. | 10-09-2014 |
20150147014 | Cage blank for freewheel with rolling elements, freewheel cage formed from such a blank, freewheel comprising such a cage, and method of mounting such a freewheel - A cage blank for a free wheel with rolling bodies is formed by an elongated strip defining housings for receiving rolling bodies juxtaposed in a rectilinear longitudinal direction of the blank. It is provided, at both of its ends, with means for attaching the two ends together, in a configuration where the cage forms a closed loop. A cage is formed by bending the blank on itself, perpendicular to its longitudinal direction, and engaging its attaching means. | 05-28-2015 |
20150300409 | RETAINER FOR TAPERED ROLLER BEARING - A retainer for a tapered roller bearing includes a small annular section, a large annular section, and retainer bar sections. Gates are uniformly arranged in a circumferential direction only in the large annular section. The gates are equal in number to the number of pockets. The gates are arranged only at sites positioned on planes passing circumferential centers of the respective pockets. The weld lines are thus formed only in the vicinity of the planes of the small annular section. A resin retainer for a tapered roller bearing excelling in adaptability to high speed rotation and high vibration is thereby obtained. | 10-22-2015 |
20160032972 | ROLLER BEARING - A cage includes a pair of annular rings and a plurality of cage bars, and an area enclosed by the pair of annular rings and the circumferentially adjacent cage bars that serves as a pocket that holds the roller. The cage further includes a tab provided so as to protrude from a radially outer area of the cage bars to prevent the roller in the pocket from slipping out through the pocket toward a radially outer side. A surface of a bottom portion of the tab is discontinuous with surfaces of the cage bar, which are located on both sides of the tab in a longitudinal direction. | 02-04-2016 |
20160040716 | RESIN CAGE FOR TAPERED ROLLER BEARING AND TAPERED ROLLER BEARING INCLUDING THE RESIN CAGE - Provided is a resin cage for a tapered roller bearing in which a mold parting line which is extended in an axial direction is formed in a pillar portion defining a pocket. On facing surfaces of adjacent pillar portions, on an outer diameter side from the mold parting line, a first conical surface which slides in contact with an outer peripheral surface of a tapered roller is formed, and a first flat surface in a radial direction is formed in a portion on the outer diameter side from the conical surface. On an inner diameter side from the mold parting line, a second conical surface which slides in contact with the outer peripheral surface of the tapered roller is formed, and a second flat surface in a radial direction is formed in a portion on the inner diameter side from the second conical surface. | 02-11-2016 |
20160123393 | BEARING CAGE AND METHOD OF FORMING A BEARING CAGE - A rolling-element bearing cage includes a first ring member, a second ring member, and a plurality of bridge members connecting the first ring member to the second ring member. Adjacent pairs of the plurality of bridge members define a plurality of pockets configured to receive and retain at least one rolling element. The cage includes a plastic composition, and the plastic composition includes irradiated polytetrafluoroethylene (PTFE) and a matrix plastic selected from the group consisting of polyether ether ketone (PEEK), polyamide (PA), polyphthalamide (PPA), polyetherimide (PEI), polyethersulfone (PESU), polyoxymethylene (POM), polyphenylene sulfide (PPS), polypropylene (PP), and combinations thereof. | 05-05-2016 |
20160131187 | HIGH CAPACITY AXIAL CYLINDRICAL ROLLER CAGE - A roller-cage assembly including rolling elements and a cage is provided. The cage includes crossbars extending between an inner and outer ring that define rolling element pockets. Each of the crossbars is tapered from a larger width at the radially outer ring to a smaller width at the radially inner ring, and is connected to the radially inner ring at a first cross-sectional connection area. The crossbars have a first and second lateral surface for supporting the rolling elements. The first cross-sectional connection area of each of the crossbars has a minimum width and a first height. A maximum distance is defined between outer surfaces of adjacent rolling elements and is greater than zero. The minimum width of the first cross-sectional connection area is greater than the maximum distance defined between outer surfaces of adjacent rolling elements at radially inner ends thereof, and is 30-50% of the first height. | 05-12-2016 |
20160201723 | ROLLER BEARING CAGE | 07-14-2016 |