A support ring assembly for a railway axle having a support ring configured to be inserted between a rolling bearing and a collar of the railway axle, the support ring having an annular seat, a surface of a radially inner side wall fitted with a radial clearance over the collar and an end wall that abuts against the collar, an annular insert fitted into the seat by means of an annular shield and having an elastomeric annular element having at least two annular protuberances that engage with the collar, the annular element configured to engage with the collar so as to occupy the radial clearance.

A transmission assembly for vehicles, including a rolling bearing having a sealing device composed of a first annular screen coupled with a stationary outer ring of the bearing and a second annular screen coupled with a rotating inner ring of the bearing. Radially outer first and second L-shaped portions of the first and second screens project axially from the bearing and towards a constant velocity joint, the first L-shaped portion having a first and a second annular lip which form with the second L-shaped portion a radial sequence of labyrinth seals. A third annular sealing lip may be arranged radially downstream of the sequence of labyrinth seals and cooperates in sliding contact with the second screen. An encoder may be mounted on the second L-shaped portion and may have an annular overhang which forms with the first lip a first labyrinth seal.

A wheel is assembled and fitted with a frame of the scooter, and includes a bearing support, a hub, at least one bearing and a hollow area. The bearing support includes an inner surface facing towards a rotation center of the wheel. Each bearing includes an outer ring and an inner ring, the outer ring is fixedly connected to the hub, and the inner ring and the frame are fixedly connected to the bearing support, respectively. The hollow area is surrounded by the inner surface.

A secondary sealing device is for a wheel bearing assembly including a fixed inner axle with an outer circumferential surface and a bearing inner race, an outer hub rotatable about the inner axle and having an inner circumferential surface and a bearing outer race, rolling elements disposed between the inner and outer races, and a primary seal(s) connected with the inner axle and sealingly engaged with the outer hub. The secondary sealing device includes a rigid annular body having an inner radial end coupled with the inner axle and an outer radial end spaced radially inwardly from the inner circumferential surface of the outer hub so as to define an annular gap between the body and the outer ring. The body is located between the primary seal and an axial end of the hub so as to provide a barrier configured to prevent contaminants from contacting the primary seal.

A bearing unit may have a radially outer ring, a radially inner ring, a row of rolling bodies interposed between the radially outer ring and the radially inner ring, a casing inside which the rings of the bearing unit are housed. The bearing unit may further have a sealing device and a disc-like element for protecting the sealing device, made as one piece, entirely of plastic or composite material, axially external with respect to the sealing device, stably anchored in a seat of the casing and having a radial distance (d2) between a radially internal surface of the disc-like element and the radially inner ring ranging between 0.75 mm and 0.95 mm so as to block large-size external contaminants, without making contact with the radially inner ring.

A bearing seal is suitable for sealing a space between a first rotating body and a second rotating body of a bearing. The first radial end of the bearing seal is arranged on the first rotating body and forms a contact seal with the first rotating body, the second radial end of the bearing seal is arranged close to the second rotating body and forms a non-contact seal with respect to the second rotating body. A plurality of lubricant storage cavities arranged on the inner surface of the bearing seal facing the rolling elements of the bearing. A bearing providing the bearing seal as described above.

Support assembly for movable, rotating or sliding shafts, having a bearing unit, a casing and a cover for fluid sealing an opening of an internal seat of the casing; the cover having an annular coupling portion towards a radially outer lateral surface of the casing, the annular coupling portion being provided radially on the inside with at least one pair of teeth projecting radially towards the inside of the cover and spaced circumferentially from each other; the radially outer lateral surface of the casing being provided with an annular groove for receiving the teeth of the cover, which in turn is provided circumferentially with an alternating plurality of depressions and projections; the annular groove having at least one pair of mechanical stops of the at least one pair of teeth of the cover, the mechanical stops extending in a radial direction with respect to corresponding depressions to be flush with the lateral surface of the casing.

A rolling bearing 1 includes an outer ring 1A, an inner ring 1B, a plurality of rolling elements 1C, and a seal member 1D. The outer ring 1A includes a first outer ring 10 and a second outer ring 20. The inner ring 1B includes a first inner ring 30 and a second inner ring 40. The seal member 1D includes an annular base portion 61, 71 fixed to one bearing ring which is one of the outer ring 1A and the inner ring 1B, and an annular protruding portion 62, 72 protruding from the base portion 61, 71 and extending toward a first region which is a region opposing the one hearing ring in another bearing ring which is the other of the outer ring 1A and the inner ring 1B.

A sealed rolling bearing is provided which includes slingers, and seal members disposed between the inner ring and the outer ring, and sealing the rolling element installation area. The radially inner and outer portions of each slinger are bent inwardly such that a labyrinth portion is defined between the radially outer bent portion of the slinger and the radially inner surface of the outer ring, the labyrinth portion having a path length, in the axial direction of the bearing, longer than the material thickness of the slinger.

A bearing seal provides a first sealing member to be secured to a shoulder on one side of a first bearing ring and a second sealing member that can be secured to a shoulder on the same side of a second bearing ring. A labyrinth seal gap is formed between the first sealing member and the second sealing member, which has at least one tooth-shaped turn. On the basis of the above bearing seal, the present invention further provides a rolling bearing that employs the bearing seal on an axial side thereof.