A universal joint having a retainer ring that secures a bearing cup to a cross shaft. A bearing cup retainer may secure the bearing cup to the retainer ring. A cross shaft retainer may secure the retainer ring to the cross shaft. A seal may extend from the body of the retainer ring to the cross shaft.

A seal assembly for a bearing includes an inner seal member that has an annular ring with a first lobe extending therefrom and a seal receiving surface on a leg extending axially from the annular ring. The seal receiving surface has two seating areas. The seal assembly includes an outer seal member positioned radially inward from the leg and axially outward from the annular ring. The outer seal member has a pivot member which has a second lobe extending outwardly therefrom. The seal assembly includes a retaining ring that has a circumferential groove formed therein. The pivot member is pivotally seated in the groove so that the second lobe is moveable between the two first seating areas.

The present invention relates to a pressure roller bearing for a pallet car of a pelletizing machine. The bearing includes an external annular race having: an exterior surface for reversible mating engagement with a tooth gap of a wheel, a pair of sidewalls defining ends of the bearing, wherein the radial diameter of the exterior surface at a center portion in the axial direction is greater than the radial diameter of the exterior surface at the ends of the bearing, and an interior annular groove; an internal annular race defining a hole therethrough for receiving an axle, and having an exterior annular groove; and a plurality of rolling cylindrical members located in an interior space defined by the interior annular groove and the exterior annular groove when the internal annular race is received by the external annular race.

The present invention relates to a pressure roller bearing for a pallet car of a pelletizing machine. The bearing includes an external annular race having: an exterior surface for reversible mating engagement with a tooth gap of a wheel, a pair of sidewalls defining ends of the bearing, wherein the radial diameter of the exterior surface at a center portion in the axial direction is greater than the radial diameter of the exterior surface at the ends of the bearing, and an interior annular groove; an internal annular race defining a hole therethrough for receiving an axle, and having an exterior annular groove; and a plurality of rolling cylindrical members located in an interior space defined by the interior annular groove and the exterior annular groove when the internal annular race is received by the external annular race.

A universal joint having a retainer ring that secures a bearing cup to a cross shaft. A bearing cup retainer may secure the bearing cup to the retainer ring. A cross shaft retainer may secure the retainer ring to the cross shaft. A seal may extend from the body of the retainer ring to the cross shaft.

A wheel support rolling bearing includes an inner ring; an outer ring; and a plurality of needle rollers. The inner ring includes a first raceway surface facing the outer ring in a radial direction, and a second raceway surface and a third raceway surface facing the outer ring in an axial direction. The second raceway surface is located on an inner side in the axial direction with respect to the outer ring, and the third raceway surface is located on an outer side in the axial direction with respect to the outer ring. The plurality of needle rollers include a plurality of first needle rollers disposed between the first raceway surface and the outer ring, a plurality of second needle rollers disposed between the second raceway surface and the outer ring, and a plurality of third needle rollers disposed between the third raceway surface and the outer ring.

A universal joint bearing for a joint cross of a universal joint includes a hollow cylindrical body having a longitudinal axis and a base in an end region of the body, at least one first needle roller set including a first plurality of rollers inside the cylindrical body and at least one second needle roller set including a second plurality of rollers inside the cylindrical body. The first needle roller set is disposed adjacent to the second needle roller set in a direction of the longitudinal axis, and at least one of the first plurality of rollers is longer than at least one of the second plurality of rollers.

A universal joint bearing for a joint cross of a universal joint includes a hollow cylindrical body having a longitudinal axis and a base in an end region of the body, at least one first needle roller set including a first plurality of rollers inside the cylindrical body and at least one second needle roller set including a second plurality of rollers inside the cylindrical body. The first needle roller set is disposed adjacent to the second needle roller set in a direction of the longitudinal axis, and at least one of the first plurality of rollers is longer than at least one of the second plurality of rollers.

Reduction bearing having at least three concentric rings that include an inner ring with inner ring axial extension, a center ring with center ring axial extension and an outer ring with outer ring axial extension and at least two concentric rings of/with rolling elements including an inner concentric ring of/with rolling elements and an outer concentric ring of/with rolling elements. Inner ring and center ring are configured as bearing races for inner concentric ring of/with rolling elements and center ring and outer ring are configured as bearing races for the outer concentric ring of/with rolling elements. At least one reduction stage has a common reduction stage plane in which the inner ring extension, the center ring extension and the outer ring extension lie. The center ring extension is configured to transmit a wave-type reduction action between the inner ring extension and the outer ring extension.

Reduction bearing having at least three concentric rings that include an inner ring with inner ring axial extension, a center ring with center ring axial extension and an outer ring with outer ring axial extension and at least two concentric rings of/with rolling elements including an inner concentric ring of/with rolling elements and an outer concentric ring of/with rolling elements. Inner ring and center ring are configured as bearing races for inner concentric ring of/with rolling elements and center ring and outer ring are configured as bearing races for the outer concentric ring of/with rolling elements. At least one reduction stage has a common reduction stage plane in which the inner ring extension, the center ring extension and the outer ring extension lie. The center ring extension is configured to transmit a wave-type reduction action between the inner ring extension and the outer ring extension.