A slewing bearing providing a first ring, a second ring, the first and second rings being in relative rotation around a rotation axis, and at least one row of rolling elements arranged between the rings. The slewing bearing is further provided with a sealing device including at least one seal having an annular heel fixed to the first ring, and a sealing lip in sliding frictional contact with the second ring, and a deflector mounted to a lateral surface of second ring and having a deflecting part that at least partially radially surrounds the sealing lip.

A sealing device includes a seal member and a slinger. The slinger has a slinger fixing part, a first radial part, a first axial part, a second radial part, and a second axial part facing a seal fixing part of the seal member in a radial direction across a first clearance. The seal member has a large-diameter part facing, in an axial direction, an end of the second axial part on the other side in an axial direction across a second clearance. An outer circumferential surface of the large-diameter part and an outer circumferential surface of the second axial part are included in a flow passage surface of a continuous outside flow passage that extends in a straight line along the axial direction. The first clearance and the second clearance communicate with each other, and the sealing device has a labyrinth clearance including the first clearance and the second clearance.

A double-row four-point contact ball bearing 100 according to the present invention includes an outer ring 102, an inner ring 104, and balls 106 and 108 that are arranged in two rows between the outer ring 102 and the inner ring 104 and each have four contact points. Inner side contact angles α of the balls 106 and 108 arranged in the two rows are set such that lines of action L1 and L2 that extend respectively connecting center points of the balls 106 and 108 and contact points of the balls do not cross each other in the outer ring 102.

A wheel bearing outer ring having at least a first ring made of a composite material and a metal ring. The metal ring provides at least two raceways that are configured for rolling elements to roll on.

A bearing providing a first ring assembly and a second ring assembly, the first ring assembly including at least a first ring and an outer cap reversibly fixed to first ring. The bearing further providing at least one sealing element mounted radially into a cylindrical surface of the first ring assembly and provided with a sealing lip in sliding frictional contact with the second ring assembly. The bearing including at least one adjusting shim mounted radially between the first and second ring assemblies, the adjusting shim being axially located between the outer cap of the first ring assembly and the sealing element; or between the first ring of the first ring assembly and the sealing element.

A slewing bearing including a first ring, a second ring, the first and second rings being in relative rotation around a rotation axis, at least one row of rolling elements arranged between the rings, and at least one seal mounted in a circumferential groove of first ring. A cap is fixed to the first ring and provides a cap sealing member having an annular heel mounted in an circumferential slot formed on a frontal surface of cap, and a sealing lip projecting from the heel and towards the second ring. The sealing lip has a free end in sliding frictional contact with part of the second ring.

Sealing unit for a wheel hub group (50) for vehicles that is provided with a roller bearing interposed between a rotary hub for a wheel of the vehicle, and a stationary pin of an upright of said vehicle, the sealing unit in turn comprising an annular pre-cavity arranged in an axially frontal position of the roller bearing, a dynamic portion in rotation about an axis (A) when in use, and a static portion cooperating with the dynamic portion to protect the roller bearing from external contaminants, the dynamic portion having a centrifuging surface formed on a free end of the hub and the static portion in turn having a stationary screen that is fitted onto the support pin inside the pre-cavity and that has a centrifuging section facing the centrifuging surface to facilitate expulsion and drainage of contaminants out of the annular pre-cavity.

A hub bearing unit includes an inner ring having inboard and outboard axial ends and a bearing inner race on an outer surface. An outer ring disposed about the inner ring has inboard and outboard axial ends and a bearing outer race on an inner surface. One ring is coupled with a wheel and rotatable about an axis and the other ring is fixedly coupled with a frame. A plurality of rolling elements is rollable upon the inner and outer races. A displacement limiter extends radially from one ring and has a frustoconical stop surface spaced radially from a surface of the other ring. The limiter stop surface engages with the ring surface when the ring displaces radially and/or axially relative to the other ring to prevent brinelling impacts on the bearing races. Preferably, the displacement limiter is located axially between the rolling elements and the ring inboard ends.

A bearing assembly is disclosed herein. The bearing assembly includes a first inner ring and a second inner ring, as well as an outer ring. A first plurality of rolling elements are arranged to be supported between the first inner ring and the outer ring. A second plurality of rolling elements are arranged to be supported between the second inner ring and the outer ring. A third plurality of rolling elements are arranged to be supported between the second inner ring and the outer ring. The second plurality of rolling elements is arranged axially between the first and third plurality of rolling elements. Various dimensions and aspects of the bearing assembly are designed in order to provide increased efficiency and a reduced envelope.

A fixed type constant velocity universal joint includes an outer joint member having a cup shape, an inner joint member, which is received in the outer joint member, and transmits torque between the inner and outer joint members through intermediation of balls while allowing angular displacement, and a hollow shaft, which is coupled to the inner joint member so as to allow torque transmission. A threaded hole is formed in a bottom portion of the outer joint member along an axial direction. A recessed hole is formed to be open in a shaft end portion of the hollow shaft opposed to the threaded hole. An embedded stopper that enters the threaded hole is press-fitted into the recessed hole. The embedded stopper is retractable into the hollow shaft in a press-fitting direction.