Abstract: A wheel assembly includes a hub and bearing unit in which an annular hub has an axial cylindrical seat with an outer ring of a bearing fitted thereto with radial interference. The ring is locked axially on the hub between a pair of annular rims which project radially outwardly from the outer cylindrical surface of the ring and have been cold-deformed so as to engage two opposite surfaces of the hub. The hub also has an outer radial flange for fixing a brake rotor which in turn has an inner radial flange arranged substantially in the same plane as the flange. The brake rotor is locked axially on the hub by at least one cold-deformed annular rim which projects radially outwardly from the flange on the hub so as to engage a respective one of two radial surfaces of the flange.

Abstract: Sealing device (1) for a rolling bearing (2) including: an inner race (5), which is axially blocked by a blocking element (4) suitable for being arranged in contact with a reference element (6); a distance ring (8) which is made of plastic material and which is interposed between the blocking element (4) and the reference element (6); a snap fastening element (9) which is integral to the distance ring (8) in order to fasten the distance ring (8) itself to the blocking element (4); and an external covering (10) made of rubber material and arranged outside the snap fastening element (9) in order to guarantee at least one static seal between the inner race (5) and the blocking means (4) and between the blocking means (4) and the reference element (6).

Abstract: Sealing device (1) for a rolling contact bearing (2) presenting an annular sealing lining (5), a protective shield (6) for the lining (5) which is mounted on the outside of the lining (5) itself, and an encoder (15) which is integral to the shield (6) and which is protected by a covering element (16) arranged opposite the shield (6) in relation to the encoder (15).

Abstract: For the purpose of facilitating correct fitting of a motor vehicle wheel onto a hub (10) which froms a central axial tubular projection (11) for insertion into a central wheel hole (30), a hub assembly includes an annular cylindrical element (20) to be fitted on the projection (11) and having a plurality of circumferentially spaced resilient portions (21) capable of exerting force in radially outward directions on the wheel hole to support the wheel resiliently in an essentially centered manner relative to the hub.

Abstract: Bearing/hub group (1) with a sensor (8) for vehicle wheels, the group (1) presenting at least one rolling race which can revolve around a rotation axis A: a fixed rolling race (4) which is arranged outside the revolving rolling race (3) in a position which is coaxial to the revolving rolling race (3) itself and which is provided with a support flange (7) which projects towards the outside; and a sensor (8) which is mounted on the fixed revolving race (4) being made of different materials, and being connected to each other by an interface element (9) which is integral with the flange (7), and by two axial blocking elements (10) which are integral with the fixed rolling race (4) and which abut the interface element (9).

Abstract: In a hub-bearing assembly for the wheel of a motor vehicle, the hub (1) forms integrally or is fixedly secured to a radial flange (7) fixable to a wheel (8). Associated with the assembly is a measuring device (14) mounted to a non-rotating part (12) of the vehicle and operatively facing a radial surface (13) integral with the flange (7). The measuring device (14) detects in real time variations of the axial position of the surface (13) caused by elastic deformation of the flange (7) provoked by forces transmitted from the wheel (8) to the hub flange (7).

Abstract: An annular element for a rolling bearing comprises a cylindrical surface around the circumference of which a groove, the radial and axial depth of which are variable around the circumference, is formed. The cylindrical surface is suitable for being over-molded with a plastics material to form a body which is fixed firmly for rotation with the annular element and has a plastics projection complementary with the groove. The projection can cooperate with the groove to prevent relative rotation between the annular element and the body.

Abstract: Sealing device (1) for a rolling bearing (2) which is provided with an inner race (5), which is axially blocked by a blocking element (4) which is suitable for being arranged in direct contact with a feedback element (6); the sealing device presents a support element (9) which is mounted on the inner race (5), an encoder wheel (8) which is installed on the inner race (5) and which is an integral part of the support element (9) itself, and a static sealing element (10), which is also an integral part of the support element (9) and which, in turn, presents two lips (21, 22) which are substantially parallel in relation to each other and which extend opposite the support element (9), a first lip (21) of the two lips (21, 22) extends towards the feedback element (6) and comes into contact with it, and a second lip (22) of the two lips (21, 22) extends towards a frontal surface of the inner race (5) and comes into contact with it.

Abstract: A bearing unit comprises a radially outer stationary race (1) and a pair of radially inner rotatable half-races (2a, 2b). An intermediate annular chamber (8) is defined between the outer race (1) and the inner half-races (2a, 2b). The intermediate chamber communicates with the outside through first air passages (5) formed in the outer race (1) and with the inside of the bearing unit through second radial air passages (6) defined between the inner half-races (2a, 2b). An intermediate annular member (10) is axially interposed between the inner half-races (2a, 2b) and defines the second passages (6).

Abstract: A railway axle hub unit of the type including an axle box housing (1) for supporting a bearing, is provided with a sensor body (3, 9) containing sensors (4, 5) for detecting vibration in the vertical direction and the horizontal axial direction. The sensor body is mounted onto a stationary support element (2, 1, 15) rigidly secured to the bearing, preferably an annular sealing insert. The sensors perform monitoring of the operation condition of the hub unit by generating and transmitting signals indicative of the detected level of vibration to an electronic processing unit mounted on board of the railway vehicle or the train. The processing unit is capable of signalling in real time an impending failure and/or a damaged condition associated with the monitored hub unit.

Abstract: A bearing unit comprises an outer stationary race (1) with a first inner passage (6) for the air, and two axially adjacent inner half-races (2a, 2b) rotatable with the hub of a wheel. Formed between the inner half-races are essentially radial second inner air passages (7, 71, 72). These passages have surfaces (71d, 72d) inclined forwardly with respect to a direction of rotation (A, B) so as to favour the air flow through the rotating part of the bearing.

Abstract: Surveying device (1) for the running parameters of railway contact bearings (2) which is provided with a rotating race (3) and a non-rotating race (4) which are coaxial to a rotation axis (A) of the railway contact bearing (2) itself, the device (1) being provided with a sealing shield (5) which is mounted onto the non-rotating race (4); and which is also provided with a sealing lining/covering (7) which is integral with the shield (5), and which is in contact with a sliding surface (11s) which is in turn integral with the rotating race (3): the device also being provided with a signal generating element (15) which is integral with the sliding surfaces (3s) (11s) themselves and which is arranged inside the shield (5); and which is also provided with a sensor (16), which faces the generating element (15) in order to read the signal itself, and which is itself integral with the shield (5) in a position which is outside the railway bearing (2).

Abstract: Sealing device (1) with an integral encoder wheel (2), the device presenting a rotating shield (3) which is provided with a centrifugal tubular race (5), and with a flange (6) which is transverse to the centrifugal race (5) itself; a fixed shield (4) provided with an end portion (7) which faces the flange (6); a encoder wheel (2) which is integral to the rotating shield (3) and which is arranged outside the flange (6); and a radial sealing lip (11) which is integral to the fixed shield (4) and which is arranged in sliding contact with the centrifugal race (5), in relation to which it is orientated in an axially opposite direction; an axial blocking element (17) which extends in such a way as to be interposed between the said encoder wheel (2) and the end portion (7) of the fixed shield (4) in order to create a radial interference between the encoder wheel (2) and the end portion (7) themselves.

Abstract: An annular hub (11) has flange (2) for connecting to a wheel and an axial cylindrical surface (14) for mounting a bearing unit (7). An intermediate annular member (30) is coupled for rotation to a driving axle shaft (1) by a first toothed/splined coupling (21, 31) and to the hub (11) by a second toothed/splined coupling (22, 32).

Abstract: A hollow suspension standard (20) of a vehicle equipped with a system for supplying pressurized air to a tyre through the hub of the wheel has an inner cavity (22) and a seat (21) for housing a wheel hub bearing unit (10). The standard (20) forms a first passage (23) for establishing fluid communication between the inner cavity (22) and the hub-bearing unit (10), and a second passage (24) establishing fluid communication between the inner cavity (22) and a source of pressurized air mounted on board of the vehicle.

Abstract: Sealing device (1) for rolling contact bearings, the device (1) presenting two rigid shields (3, 4) which face each other in order to form a labyrinth opening (13) which is radially delimited towards the inside by a lateral surface (12), and by a encoder wheel (2) which is supported by a first shield (3) of the said two shields (3, 4) and which is arranged in such a way as to be radially aligned to the labyrinth opening (13); at least one sealing lip (20) being situated inside the labyrinth opening (13), and extending towards the said first shield (3) starting from a second shield (4) of the said two shields (3, 4) in order to face the said lateral surface (12).

Abstract: Tapered rolling bearing (1) which presents an inner race (2) which is provided with a guiding rim (5) along one of its own sides; a ground rolling surface (7) which is radially obtained outside the inner race (2) and which is axially delimited by the guiding rim (5); a crown of tapered rollers (4), each of which is suitable for rolling in contact with the rolling surface (7) and which is extremely close to the guiding rim (5); and a grinding relief (8), which is obtained between the rolling surface (7) and the guiding rim (5) in order to permit the grinding of the rolling surface (7) itself, and which is provided with an annular outlet edge (9) which confines with the rolling surface (7); the annular outlet edge (9) of the grinding relief (8) being arranged at a determined distance from the rolling surface (7), said distance being measured transverse to the rolling surface (7) itself.

Abstract: Protection device (1) for an encoder (2) in a rolling bearing (3) presenting an outer race (5) which is arranged in contact against a fixed support (6), the device being interposed between the encoder (2) itself and a reading sensor (17) which is supported by the support (6) itself, and being provided with: a fixing race (18) which is shrink fit onto the outer race (5) of the bearing (3) and frontally to a shoulder (15) of the support (6); a protection shield (19) which extends from the fixing race (18) towards an inner race (4) of the bearing (3) in a position which is frontal to both the encoder (2) and the sensor (17); and a sealing element (30), which is integral to the fixing race (18) and the shoulder (15) for the static waterproofing of the support (6).

Abstract: Sensor-holding lid for a wheel hub bearing (2), the lid (1) presenting a base wall (7) which is externally delimited by a peripheral border (8), an axial ledge which is integral to the wall and which is provided with a passing hold (9) for housing the sensor, and a cylindrical wall (10) which is transverse to the base wall (7) and which is arranged radially inside the peripheral wall (8) in order to be fixed onto an external border (6) of the bearing (2); at least two annular static sealing elements (16,17) which are made of rubber and which are co-moulded, respectively, into the peripheral border (8) on the outside of the cylindrical wall (10) and inside an entry border (14) of the passing hole (9).

Abstract: An integral assembly for a motor vehicle wheel comprises a metal mounting element (20) and a bearing-hub unit (10).