Class / Patent application number | Description | Number of patent applications / Date published |
384571000 | Tapered race | 28 |
20080205813 | Tapered roller bearing - A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers, and a cage. The cage includes a large diameter-side annular section, a small diameter-side annular section, and pillar sections connecting the large diameter-side annular section and the small diameter-side annular section and forming pockets retaining the tapered rollers. The radially inner surfaces of the pillar sections are disposed closer to the center than a pitch circle of the tapered rollers and are inclined from the small diameter-side annular section toward the large diameter-side annular section, thereby forming guide surfaces that guide lubricating oil toward the large rib. Roller holding portions are formed on side portions of the pillar sections so as to protrude along the outer peripheral surfaces of the tapered rollers to a position located at the outer side in the radial direction than the pitch circle. | 08-28-2008 |
20080267553 | TAPER ROLLER BEARING - A split taper roller bearing comprising an inner ring including an inner tapered race, an outer ring including an outer tapered race, a cage mounted between the inner and outer tapered races, said cage mounting tapered rollers which engage the inner and outer races, said inner ring and inner tapered race, outer ring and outer tapered race, and cage each comprising two generally semicircular parts, the relevant semicircular parts being mounted end-to-end to provide a circular component, whereby the two semicircular parts of the inner ring and inner tapered race, outer ring and outer tapered race, and cage, may be separated from one another to allow the taper roller bearing to be dismantled when worn without removal of the component supported by the bearing. | 10-30-2008 |
20090046972 | Bearing Apparatus For A Wheel Of Vehicle - A vehicle wheel bearing apparatus with a back-to-back double row tapered roller bearing has an outer member integrally with a body mounting flange and double row outer raceway surfaces tapered open respectively axially inward and outward. An inner member include a wheel hub and an inner ring or an outer joint member of a constant velocity universal joint. The wheel hub has a wheel mounting flange and one inner raceway surface arranged oppositely to one of the double row outer raceway surfaces and a cylindrical portion. The inner ring or the outer joint member of a constant velocity universal joint are press fit onto the cylindrical portion and include the other inner raceway surface arranged opposite to the other raceway surface of the double row outer raceway surfaces. Double row tapered rollers are freely rollably held between the outer and inner raceway surfaces by cages. Seals are arranged in annular openings formed by the outer and inner members. The cages are formed of synthetic resin. Posts between pockets of the cages are arranged to be positioned radially inward of the pitch circle diameter of the tapered rollers. The width of an opening radially inward of each pocket is set so that each tapered roller is held within the pocket. The contacting tapered surfaces of the posts open radially outward so that the rollers do not fall out radially inward. | 02-19-2009 |
20090110340 | Bearing apparatus for supporting pinion shaft - A pinion shaft is supported in a housing by two tapered roller bearings which are arranged separately from each other in an axial direction, and these two tapered roller bearings are lubricated with lubricating oil in the housing in oil bath lubrication method. A labyrinth forming member in a disc-like shape is disposed with respect to a backward tapered roller bearing out of the two tapered roller bearings, on an end face at a small diameter side of an inner ring thereof in a press-contact manner, so as to be opposed to a rib part which is formed inwardly in a radial direction at a small diameter end of a cage. In this manner, a labyrinth structure for restricting a flow of the lubricating oil is formed between the rib part at the small diameter end side of the cage and the labyrinth forming member. | 04-30-2009 |
20090297085 | BEARING ARRANGEMENT OF A SHAFT - A bearing arrangement of a roller-mounted unbalanced mass shaft. The rollers are in punctiform contact with one of the raceways at a low shaft rotational speed and in linear contact with both raceways at a high shaft rotational speed. | 12-03-2009 |
20090324155 | Tapered roller bearing - A tapered roller bearing comprises an inner ring having a conical surface-like raceway surface in it outer periphery and formed with a cone back face rib and a cone front face rib on the opposite sides of the raceway, an outer ring having a conical surface-like raceway in its inner periphery, a plurality of tapered rollers interposed between the raceways of the inner and outer rings, and a cage for holding the tapered rollers in predetermined circumferential intervals, wherein the ratio R/R | 12-31-2009 |
20100002975 | TAPERED ROLLER BEARING - In a tapered roller bearing, the roller coefficient γ is greater than 0.94. At least one member of an inner ring ( | 01-07-2010 |
20100002976 | TAPERED ROLLER BEARING - A tapered roller bearing includes a cage | 01-07-2010 |
20100074569 | TAPERED ROLLER BEARING - The present invention provides a tapered roller bearing that can achieve improvement in manufacturability and a longer life. The tapered roller bearing of the present invention includes an outer ring | 03-25-2010 |
20100086250 | BI-DIRECTIONAL TAPERED ROLLER BEARING ASSEMBLY WITH IMPROVED WEAR RESISTANCE - The wear resistance of a bi-directional tapered roller bearing is improved by applying a tribological coating to both the small and large end faces of the roller and to at least one of the rib faces of the bearing assembly. | 04-08-2010 |
20100098369 | Tapered roller bearing with improved cage - A bearing assembly is provided having a roller bearing with an inner race fitted around the journal portion of an axle. An outer raceway combines with the inner raceway to receive roller elements. A backing ring is centered to the shaft fillet. Tapered roller elements are located between and contact the inner and outer raceways. A cage is comprised of an inner ring, and outer ring, and a plurality of pocket bars and support pocket bars extending between the inner and outer rings. The support pocket bars have an overall greater thickness than the pocket bars. The cage is a generally unitary structure comprised of a nylon resin material with a fiber fill. | 04-22-2010 |
20100119187 | BEARING UPGRADE AND KIT - A journal bearing assembly includes a journal shaft configured to be mounted in a pulverizer. The journal shaft has a lower bearing receiving surface proximate a lower end thereof, and an upper bearing receiving surface spaced apart from the lower bearing receiving surface axially. A lower journal bearing is mounted on the lower bearing receiving surface of the journal shaft. An upper journal bearing is mounted on the upper bearing receiving surface of the journal shaft. An upper journal housing is mounted on the upper journal bearing for rotational movement relative to the journal shaft. A lower journal housing is mounted on the lower journal bearing for rotational movement relative to the journal shaft. The lower journal housing is mounted to the upper journal housing for common rotation about the journal shaft. The journal bearing assembly has a loading point defined between the upper and lower journal bearings. | 05-13-2010 |
20100209036 | TAPERED ROLLER BEARING - Provided is a tapered roller bearing in which strength of a flange portion for receiving larger end surfaces of tapered rollers is ensured and the tapered rollers have a longer axial length so as to increase load rating. The tapered roller bearing includes: an inner race ( | 08-19-2010 |
20100215307 | MULTIPLE-ROW LARGE ROLLER BEARING, ESPECIALLY AXIAL RADIAL BEARING FOR THE MAIN ARRANGEMENT OF BEARINGS OF THE ROTOR SHAFT OF A WIND POWER INSTALLATION - An axial radial bearing for a rotor shaft of a wind power installation, which has a vertical circular outer disk, inner ring arranged coaxially to the outer disk, and two circular shaft washers axially arranged on both sides of the outer disk. At least one row of rolling bodies, held at equal distances by a bearing cage, extends between the shaft washers and outer disk, forming the rolling bearings for receiving axial forces, while at least one other row of rolling bodies, optionally held at equal distances by another bearing cage, is arranged between the outer disk and inner ring, forming a third rolling bearing for receiving radial forces. The two rolling bearings for receiving radial forces are formed by two tapered roller bearings oriented towards the longitudinal axis of the bearing by the small front sides, or by a double-row angular ball bearing or by two axial ball bearings. | 08-26-2010 |
20100290730 | Simplified Rolling Bearing Unit and a Method ofor Manufacturing Such a Bearing Unit - The invention refers to a bearing unit and a method for its manufacture incorporating an outer race ring ( | 11-18-2010 |
20100316321 | TAPERED ROLLER BEARING - The object is to provide a miniature-sized tapered roller bearing that includes an inner race having an inner diameter of not more than 9 mm and that ensures high dynamic load rating. | 12-16-2010 |
20100316322 | Bearing Assembly - A bearing assembly comprises a bearing enabling a rotatable body to rotate about a rotational axis relative to a stationary body. The bearing includes a bearing inner ring and a bearing outer ring, each having at least first and second roller body tracks provided in or on non-parallel surfaces of the ring. The respective roller body tracks of the bearing outer ring are aligned with the respective roller body tracks of the bearing inner ring and a row of roller bodies is disposed between each of the respective sets of roller body tracks. At least one of the rows of roller bodies comprises one of tapered rollers and spherical rollers, at least one of the rows of roller bodies supports at least axial forces and at least one of the rows of the roller bodies supports at least radial forces. | 12-16-2010 |
20100322548 | TAPERED ROLLER BEARING - A tapered roller bearing of the type having a protrusion on the retainer that is axially brought into engagement with the flange of the inner race is provided, wherein no stress concentration occurs on the flange of the inner race, which guide the tapered rollers and which is small and has a large load bearing capacity. | 12-23-2010 |
20110026867 | OUTER RING OF TAPERED ROLLER BEARING, TAPERED ROLLER BEARING, AND MANUFACTURING METHOD OF OUTER RING OF TAPERED ROLLER BEARING - A tapered cylinder portion, a radially extending portion, a cylindrical portion, a center backup portion, and a large diameter side curved portion are formed from an integral metallic plate. | 02-03-2011 |
20110075959 | TAPERED ROLLER BEARING - To prevent abrasion of an end surface on a large flange portion side of an inner race and abrasion of an end surface of a flange portion of a mating member, a tapered roller bearing includes a washer fixed to the end surface on the large flange portion side of the inner race. A dimensional tolerance between the inner race and the washer, which is required when the washer is fixed to the inner race, is increased to reduce processing cost and to facilitate fixation work of the washer to the inner race. The tapered roller bearing includes a washer ( | 03-31-2011 |
20110123142 | Railway car roller bearing - A bearing assembly is provided having a roller bearing a cone forming an inner race fitted around the journal portion of an axle. A cup forms an outer raceway that combines with the inner raceway to receive roller elements. A backing ring is centered to the shaft fillet. Tapered roller elements are located between and contact the inner and outer raceways. A cage is comprised of an inner ring, and outer ring, and a plurality of pocket bars extend between the inner and outer rings. The pocket bars of the cage include a protrusion that is received in a groove in the cone. | 05-26-2011 |
20110255820 | ROLLER BEARING - A split roller bearing comprising an inner ring including an inner race, an outer ring including an outer race, a cage mounted between the inner and outer races, said cage mounting t rollers which engage the inner and outer races, said inner ring and inner race, outer ring and outer race, and cage each comprising two substantially semicircular parts, the relevant semicircular parts being mounted end-to-end to provide a circular component, whereby the two semicircular parts of the inner ring and inner tapered race, outer ring and outer race, and cage, may be separated from one another to allow the roller bearing to be dismantled when worn without removal of the component supported by the bearing. | 10-20-2011 |
20130202240 | TURNING BEARING WITH ROLLERS BETWEEN OUTER RING AND INNER RING - An effective contact length in race surfaces formed on grooved races cut in an outer ring and an inner ring is made as greater as permitted to improve the load-carrying capacity, and correspondingly guide parts born against axially opposite ends of a roller are made as less as possible in width to reduce frictional contact resistance applied to the axially opposite ends of the roller, thereby preventing a skew of the roller. An inside circular surface on the outer ring is staggered or different in level on opposite sides of a outside grooved race to make greater the race surface than an effective contact length of circular rolling surfaces of the rollers and correspondingly less the guide part in width than the race surface. | 08-08-2013 |
20150300410 | BEARING RING FOR ROLLER BEARING, ROLLER BEARING, AND POWER TRANSMISSION DEVICE - A bearing ring includes a raceway surface on which a roller of a roller bearing rolls, a rib portion end face that is provided on one side of the raceway surface in an axial direction and that faces a roller end face of the roller in which at least an outer circumferential side of the roller end face is a convex curved surface portion, and a recessed portion having a recessed shape provided in a corner between the raceway surface and the rib portion end face. The rib portion end face includes a contacting surface portion that the roller end face contacts, and a concave curved surface portion that is provided between the contacting surface portion and the recessed portion and that is smoothly continuous with the contacting surface portion. A curvature radius of the concave curved surface portion is greater than that of the convex curved surface portion. | 10-22-2015 |
20160047418 | GEAR TRANSMISSION - A carrier is supported by a case via a bearing. The bearing comprises an inner race, an outer race, rollers, and a retainer. The inner race has a tapered outer peripheral surface, and is fixed to a carrier. The outer race has a tapered inner peripheral surface facing the outer peripheral surface of the inner race, and is fixed to the case. The rollers is disposed between the inner race and the outer race. An end part of the retainer having a larger diameter makes contact with the case via a first member. The larger diameter end part of the retainer makes contact with the case via a second member. By the retainer making contact with the case and the carrier via the first member and the second member, the retainer can reduce friction compared to when making direct contact with the case and the carrier. | 02-18-2016 |
20160053805 | ASYMMETRICAL TAPERED ROLLER BEARING FOR THE PURPOSE OF MOUNTING A GEARWHEEL ON A GEARSHAFT - A bearing assembly for a transmission of a vehicle, including: a gearwheel; a gearshaft; and a double-row, asymmetrical tapered roller bearing between the gearwheel and the gearshaft, in an O arrangement and including a first row of tapered rollers, which adjoins a shaft end and a second row of tapered rollers, which adjoins the first row of tapered rollers. The first and second rows of tapered rollers are arranged between a shared outer ring arranged on the gearwheel and separate, dedicated inner rings arranged on the gearshaft. A first acute contact angle on the first row of tapered rollers is not equal to a second acute contact angle on the second row of tapered rollers. The first contact angle is at least 3° less than the second contact angle. A difference between the second contact angle and the first contact angle is at most 10°. | 02-25-2016 |
20160153495 | TAPERED ROLLER BEARING | 06-02-2016 |
20160186810 | Tapered Roller Bearing - An inner ring has a rib face as a concave surface that is formed on the larger diameter side of an inner ring and that contacts large end faces of tapered rollers. A tapered roller bearing satisfies Ri>R≧Rr, where Rr represents a curvature radius of the large end face, Ri represents a curvature radius of the rib face | 06-30-2016 |