Abstract: A rolling bearing unit having a sensor comprising: a first raceway member, on the outer circumferential surface of which a raceway surface is provided; a second raceway member, on the inner circumferential surface of which a raceway surface is provided; a plurality of rolling elements arranged between the raceway surface of the first raceway member and the raceway surface of the second raceway member; a base plate, the shape of which is formed into an annular and flat shape, having a through-hole that the first raceway member penetrates; a first coil, the shape of which is formed into a plane shape, arranged so that the first coil surrounds an overall circumference of the first raceway member; and a plurality of second coils, the shape of which is formed into a plane shape, arranged around the first coil.

Abstract: In a rolling bearing provided with an outer ring connected to a mounting opening of a knuckle, an inner ring connected to a wheel through a hub, a rolling element intervening between the outer ring and the inner ring and a sealing device for sealing the space between the inner and outer rings from the outside, the rolling bearing is provided with a sealing member for limiting the foreign substance invading the rolling bearing side from a clearance existing between a drive shaft provided rotatably with the inner ring and the knuckle, the sealing member including a ring-shaped cover including a cylinder press-fit in the outer ring and a ring-shaped upstanding wall extended radially inwardly from the cylinder and an outer lip provided at an inner diameter end of the ring-shaped upstanding wall, the outer lip serving to show the sealing function in cooperation with the drive shaft.

Abstract: A wheel monitoring apparatus includes a measuring and evaluation unit designed to be fastened to the wheel in the region of at least one wheel nut or bolt of the wheel. The wheel monitoring apparatus includes at least one sensor for detecting a characteristic variable for a state of a wheel bearing and at least one sensor for detecting a tire pressure of a tire of the wheel.

Abstract: To provide a sensor equipped wheel support bearing assembly, in which a load sensor can be installed compactly in an automotive vehicle, maintaining a high sensitivity while damage and/or malfunction caused by the external environments and/or the electromagnetic noises are avoided, with low manufacturing cost. This bearing assembly includes outer and inner members having respective rolling surfaces and a plurality of rows of rolling elements interposed between those rolling surfaces. A strain sensor unit including a sensor element is fitted to one of the outer and inner members, which is a stationary member, for example, the outer member. A sensor mounting surface of the strain sensor unit fitted with the sensor element has a covering member made of a resin, which is over-molded, or an elastomer bonded by vulcanization, so as to cover the sensor element sealingly.

Abstract: The invention relates to a wheel hub arrangement (1) having at least one wheel hub (2) which is mounted rotatably via at least one wheel bearing (3) on a bearing journal (4) of an axle body (5) which is mounted on a vehicle chassis. Furthermore, the wheel hub arrangement (1) can have a brake system (6). The bearing journal (4) is assigned a display device for displaying critical temperature loading of the wheel bearing (3) and/or the brake system (6), wherein this display device has a display element which responds when critical temperature loading is exceeded.

Abstract: A method is provided for estimating the components of the force torsor that are applied to a bearing, which method provides for the measurement of a vector (Vm) of N deformations and for the use of a physical model linking a vector (Q) of at most N representative values of the components of the torsor with a deformation measurement vector, the method comprises the following iterative steps: introduction of a vector (Q) of representative values into the model in order to calculate a deformation measurement vector (Vc); and carrying out a pertinence test (T) between the deformation measurement vector (Vc) which is calculated and the measured vector (Vm); if the test (T) is negative, establishing at least one new vector (Q) of representative values to be introduced into the model according to the result of the test; or if the test (T) is positive, storing the vector (Q) of introduced values; wherein the estimated components of the force torsor are established according to at least one stored vector (Q) of values

Abstract: This flange assembly (1), for holding a shaft (2), comprises: a rolling bearing (3) with the inner ring (31) rotatable around an axis (X3-X?3), a target (51) attached to the inner ring (31), a sensing element (7), a flange (4) having securing means (41, 42) for securing said flange assembly (1) to a static casing (C). The flange assembly (1) further comprises: a holding part (43) to hold the outer ring (32), a resilient part (44) to elastically urge said holding part (43) with respect to the securing means (41, 42) and along said axis (X3-X?3). The sensing element (7) is attached to the holding part (43) so as to be removable from outside said static casing (C).

Abstract: A roller body for a roller bearing includes at least one cavity extending from an end face of the roller body, at least one retaining element is disposed in the cavity, and at least one sensor is disposed in the cavity, such as in or on the retaining element. The sensor is at least partially surrounded by an elastic material in a protective manner.

Abstract: A sensor-equipped wheel support bearing assembly capable of accurately estimating a load acting on a wheel, without the detecting accuracy deteriorated as a result of a long term use and/or a change in environment, is provided. The assembly includes a sensor unit provided in an outer member, which serves as a stationary member. The sensor unit has a strain generator and a sensor for detecting a strain occurring in the generator. A principal load estimator estimates the load acting on the wheel, with the use of an average value of a signal from the sensor, and an amplitude processed load estimator estimates the load, using amplitude of a signal wave outputted from the sensor, resulting from passage of rolling elements. A drift amount estimator estimates a drift amount of an estimated load output utilizing the average value and the amplitude, which is used to correct the estimated load.

Abstract: The invention seeks to provide a rotor for use in rotary encoder, which is increased in magnetic intensity and mechanical strength thereby achieving exact detection of rotation speed. A corner portion formed between a cylindrical portion 21 and a mounting flange 22 of a core 20 constitutes a protrusion 23 unitized with the cylindrical portion and the mounting flange, protruded from axial one end of the cylindrical portion 21 and opened toward the axial other end thereof. A part of a pulser ring 31 is disposed in the protrusion 23.

Abstract: A bearing failure indication arrangement which has a bearing with an inner and outer races, a first part arranged to be attached in fixed relation to either the bearing inner race or bearing outer race, a failure indicator arranged in fixed relation to both the first part and either the bearing inner race or the bearing outer race, the failure indicator constructed so that if relative movement occurs between the first part and the bearing race to which it is attached, the failure indicator responds to the relative movement thereby indicating failure of the bearing.

Abstract: A sealing device comprises a stationary-side installation ring (11) fixed to an outer stationary-side member (201), a rotation-side installation ring (12) fixed to an inner rotation-side member (202), a stationary-side lip (13) provided on the stationary-side installation ring (11) to be slidably in contact with the rotation-side installation ring (12) by its tip, rotation-side lips (14, 15) formed on the rotation-side installation ring (12) to be slidably in contact with the stationary-side installation ring (11) by their tips, a pulsar ring (17) formed of a synthetic resin or rubber-like elastic material mixed with magnetic powder on the rotation-side installation ring (12) and multipolar magnetized, and a collar portion (17a) formed on an outer periphery of the pulsar ring (17) at the outer side than the rotation-side lips (14, 15) to closely face the stationary-side member (201) or the stationary-side installation ring (11), thereby an excellent sealing ability being given.

Abstract: It is prevented that magnetic foreign matter adheres the magnet encoder 3a to deteriorate the reliability of rotation speed detection with the sensor 4a. The encoder 3a is provided on the outside of the combined seal ring 19 with reference to the bearing interior space 24, and the sensor 4a faces the encoder 3a. The knuckle 21 is placed close to the housing 33 of the drive shaft member 28 of the constant velocity joint 27 to form a labyrinth seal 20. The width of the clearance of this labyrinth seal 20 is up to 40% of the pitch of adjacent S-poles and N-poles that are arranged on the detected surface of the encoder 3a. With this construction, larger foreign matter is prevented from attaching to the detected surface of the encoder 3a to solve the above subject.

Abstract: Wheel bearing (1) has sensor (15) for measuring rotational or angular movements of a wheel with wheel bearing flange (2) and roller bearing (4) attached thereto. Peripheral inner ring (7) has encoder ring (9) serving as transducer. To ensure a reliable operating mode even under the influence of dirt and rust and to be able to attach and detach the wheel bearing (1) with ease, sensor (15) is attached parallel to its radial reading direction (24) on radial contact face (23), pointing to the plane of encoder ring (9), of wheel bearing flange (2). Furthermore, sheet-metal part (16) is fitted on fixed outer ring (6) of roller bearing (4), which sheet-metal part (16) covers at least the reading area of sensor (15) and encoder ring (9) and serves, in circumferential terms, as contact face for sensor (15).

Abstract: A bearing arrangement comprises at least one bearing ring and at least one machine part with which the bearing ring is connected. The bearing arrangement is equipped with a device for detecting relative movement between at least one of the bearing rings and one of the machine parts. To facilitate the measurement of creep between one of the bearing rings and one of the machine parts, the device for detecting relative movement is located in or at the machine part and has a contact element which contacts the bearing ring, wherein a sensor element is arranged in or at the device to detect the relative movement between the device and the contact element.

Abstract: A wheel bearing apparatus incorporating a wheel speed detecting apparatus has an outer member, an inner member, double row rolling elements, a sensor holder, and a pulser ring. The sensor holder cover has a cylindrical fitting portion press-fit onto the inner side end portion of the outer member. A flange portion extends radially inward from the fitting portion. The flange portion is in close contact with the end face of the outer member. A bottom portion extends further radially inward from the flange portion. The holding portion is integrally joined to the bottom portion. The flange portion is formed with a flat surface so that it forms an abutting width larger than 5 mm or more, against the end face of the outer member, or larger than 50% or more, relative to the flat width of the end face of the outer member.

Abstract: A sensor holder has an encoder and a wheel speed sensor arranged opposite to the encoder, via a predetermined air gap. An annular fitting member is formed by pressing an anti-corrosive steel plate. A holding portion is formed of injection moldable synthetic resin and is integrally formed with the annular fitting member. The annular fitting member includes a cylindrical portion axially extending from an incline portion. A seal is arranged inboard of the sensor and fit between the inner circumference of the cylindrical portion of the annular fitting member and the outer circumference of the inner ring. The wheel speed sensor is embedded in the holding portion. At least a surface of the annular fitting member contacting the holding portion is roughened by shot blasting to have a surface roughness Ra of 0.8 or more.

Abstract: This rolling bearing (1) comprises an inner ring (12), an outer ring (14), rolling bodies (16) between said inner and outer rings, an encoder washer (32) fast in rotation with said inner ring and a support member (18) having an internal surface (26) in the form of a section of a sphere, the internal surface being adapted to be in sliding contact with a corresponding external surface (28) of the outer ring (14) which is also in the form of a section of a sphere. The support member (18) is provided with means (100; 200; 300; 400) to hold a sensor (50) with respect to the encoder washer (32), in a position where the sensor can detect a rotation of the encoder washer.

Abstract: The invention relates to a mounting device for mounting a driven and/or a drivable wheel of a vehicle. The mounting device makes it possible to measure a drive torque or a drag torque that acts between a wheel and a driveshaft. The torque is transmitted from the driveshaft to the wheel by means of radial teeth on a bearing inner ring, where there is a pressure-sensitive measuring element to measure axial forces as a characteristic of the particular effective torque. In addition, the invention relates to a device to control the distribution of the drive and drag torques acting on the driveable wheels of a vehicle. To measure the drive and drag torque distribution, there is a sensor unit on each drivable wheel to measure the torque acting on each wheel.

Abstract: A wheel bearing apparatus incorporating a wheel speed detecting apparatus has an outer member and an inner member with a wheel hub and at least one inner ring. Double row rolling elements are contained between the inner and outer raceway surfaces of the inner and outer members. A sensor holder, with a wheel speed sensor to detect the wheel speed, is mounted on the end of the outer member. An encoder is mounted on the inner ring and arranged opposite to the wheel speed sensor, via a predetermined air gap. The sensor holder has an annular ring shaped cover and a holding portion of synthetic resin. The wheel speed sensor is embedded in the holding portion. The cover is press-formed of an anti-corrosion steel sheet. The cover has a cylindrical fitting portion fit onto the end of the outer member. A flange portion extends from the fitting portion and is in close contact with the end face of the outer member. A bottom portion further extends radially inward from the flange portion.

Abstract: A hub unit is configured such that nitrogen gas, which functions as inert gas, is filled in a rolling element arranging space which is defined by an inner circumferential surface of an outer ring and an outer circumferential surface of a hub body for arranging rolling elements therein in such a manner as to be sealed therein in a semi-hermetically closed state by a seal member and a cover, so as to prevent the nitrogen gas from flowing out to an exterior space. The seal member, which is provided at an end portion of the rolling element arranging space which end lies on a vehicle-outer side, is formed as an elastic seal element, and is fixed to the outer ring at one end whereas being secured to the hub body at the other end thereof while being elastically deformed, whereby the seal member has a function to prevent the intrusion of water from the exterior space into the rolling element arranging space.

Abstract: The instrumented rolling bearing device, particularly for a two-wheeled vehicle, is provided with a rolling bearing (4) comprising an outer ring (7), an inner ring (6) and at least one row of rolling elements (8) arranged between said rings, with a sleeve (2) onto which the inner ring is mounted, and with an assembly (5) for detecting rotational parameters. The assembly comprises a sensor (14), an encoder (13) rotating past the sensor, at least one cable (16) connected to the sensor (14) for the output of signals emitted, and an output terminal (15) having an outlet (20) for the cable. The output urinal (15) is mounted axially on the side opposite the sensor (14) relative to the rolling bearing and forms an axial thrust for the inner ring (6) of said rolling bearing.

Abstract: The present invention defines a bearing unit comprising a bearing provided with one or more strain sensors, where the bearing comprises an inner ring and an outer ring, and where the one or more strain sensors (10) comprises a sensing element (14) integrated on a support member (12). According to the invention, the support member is a thin flat plate made of a metal material and is attached to a surface (5) of the bearing only by means of a first weld seam (21) and a second weld seam (22) located at first and second lateral ends of the support member. The present invention also defines a method of attaching the strain sensor (10) to the bearing surface (5).

Abstract: To provide a vehicle-wheel rolling bearing capable of further improving the reliability of a sensor by preventing a temperature drift. A vehicle-wheel rolling bearing H includes a cylindrical fixed ring 1 which is fixed to a vehicle body; rotary rings 2 and 3 which are inserted through the fixed ring 1 so as to be rotatable therein; and plural rows of rolling elements 5 which are disposed between the fixed ring and the rotary ring so as to roll. A vehicle-outboard-side end of an annular sensor housing 16 having plural displacement sensors 24 disposed in a circumferential direction thereof so as to detect a gap with respect to the outer peripheral surface of each vehicle-inboard-side end of the rotary rings 2 and 3 is press-fitted to the inner peripheral surface of the vehicle-inboard-side end of the fixed ring 1. In addition, the displacement sensors 24 are coated by a synthetic resin or a rubber-based material so as to be integrally formed with the sensor housing 16.

Abstract: In a wheel support bearing assembly having rows of rolling elements interposed between an outer member and an inner member, spacers are interposed between vehicle body fitting holes in the outer member, which is a stationary member, and a knuckle. A sensor unit including a sensor mounting member and a strain sensor is fitted to the outer member. The sensor mounting member has at least two contact fixing portions fixed to the outer member and, also, has at least one recess between the neighboring contact fixing portions, the strain sensor being disposed in this recess.

Abstract: The invention relates to a sealing arrangement that seals at least one radial intermediate space between at least one inner bearing ring and at least one outer bearing ring. Said sealing arrangement comprises at least one first support that supports at least one elastic seal and a second support which supports at least one encoder located outside the intermediate space. The encoder is radially oriented towards at least one sensor that is disposed above the encoder in a radially outward direction.

Abstract: The invention relates to a wheel bearing arrangement which enables a hub to be mounted in at least one non-rotating external ring such that it can rotate about the rotational axis of the hub. The wheel bearing arrangement comprises at least one sealing arrangement and one encoder and the sealing arrangement is secured to the hub side on the side of the wheel bearing arrangement whereon a radial flange extends in a radial manner from the hub. The encoder is actively connected to the sealing arrangement.

Abstract: Protection device for a speed sensor, the sensor being provided with a reading surface which is arranged at a first determined distance from an encoder of a contact rolling bearing, and the protection device being coupled to the contact rolling bearing, and presenting a housing for the sensor, and at least one scraping element which is arranged in such a way as to face the encoder itself in order to remove any eventual impurities from the encoder.

Abstract: A load detecting device for a roller bearing includes: a strain gauge that is provided in a roller arranged rollably between a first bearing ring and a second bearing ring and that detects a load applied to the roller; a position detecting sensor that detects a rotation position of the roller in a revolution direction of the roller; and a data logger that is provided for the roller and that records and stores a detection signal from the stain gauge.

Abstract: A sealing device for an antifriction bearing includes a fixed support and a rotating support, the sealing device comprising a metal frame designed to be associated with a support of the bearing and a sealing joint, the frame including an annular seat and, secured to the seat, electronic identifying means consisting of a transponder connected on a communication antenna, wherein the antenna has an at least semi-annular or annular shape which is designed to be urged opposite the seat, the identifying means being secured to the seat via an insulating material layer which is interposed between the antenna and the seat so as to provide electromagnetic insulation for the antenna.

Abstract: A pulsar ring for a rotary encoder has a mounting ring (1) made of a non-magnetic material, with one end being fixed to an inner ring (202) at the rotation side and the other end being positioned in proximity to an outer ring (201) at the stationary side via labyrinth-shaped clearances (G1, G2, G3), a pulsar ring body (2) formed by a synthetic resin material or rubber-like elastic material mixed with magnetic powder, magnetized to have multiple poles, and integrally installed on an inner surface of the mounting ring (1), and a seal ring (3) disposed inside the mounting ring (1), fixed to the inner ring (202) via the mounting ring (1), and slidably in contact with the outer ring (201), whereby the pulsar ring is hardly exposed to disturbances by foreign matters, muddy water, and external magnetic fields from the outside, and consequently can maintain a stable magnetic pattern.

Abstract: A sensor for detecting a speed of rotation is an active sensor, a sensing portion 35 of the sensor directly faces the magnetic encoder 10 without interposition between it and the encoder 10, and a harness 34 (or connector) of the sensor 30 for detecting the speed of rotation is taken out of a gap between a knuckle N and a constant velocity universal joint 9.

Abstract: The invention relates to a roller bearing (01), with a revolving bearing component (05) and a stationary bearing component (04), and with a capacitive sensor unit (02). The capacitive sensor unit (04) comprises a pivoted sensor element (08), which is connected to the revolving bearing component (05), and a stationary sensor element (09). The sensor units (08, 09) form a capacitor. At least one of the sensor elements (08, 09) bears a first material measure (14, 16 [sic]), so that a change arises in the capacitance of the capacitor when there is a relative motion in the sensor areas (08, 09). The sensor unit also includes a means for generating a periodic electrostatic field between the sensor plates, and a processing and amplifying electronics unit for evaluating the change in capacitance.

Abstract: A machine has a base (2), a rotating element (4) and at least one bearing system (6). Said bearing system (6) has an operating bearing (7) and a backup bearing (8) associated with the operating bearing (7). The backup bearing (8) has a base bearing ring (9) and a rotating element bearing ring (10) that is rotationally arranged relative to the base bearing ring (9). In a normal operating mode of the machine, the rotating element (4) is permanently received by the operating bearing (7) relative to the base (2) in a contact-free manner so that the rotating element bearing ring (10) does not rotate relative to the base bearing ring (9). In a special mode of operation of the machine, in which the rotating element (4) is not received by the operating bearing (7) in a contact-free manner, the rotating element (4) sets the rotating element bearing ring (10) rotating relative to the base bearing ring (9) so that the rotating element (4) is at least temporarily received with contact via the backup bearing (8).

Abstract: A sensing part 35 of a sensor 30 for detecting speed of rotation is disposed to face a magnetic encoder 10 through a sensor holder 20, the sensor 30 for detecting the speed of rotation is disposed inward in the radial direction of a hub unit mounting hole NH of the knuckle N of a car body, a connecting portion 34a of a harness 34 is provided with deformation tolerance for allowing deformation of the shape when a load exceeding a predetermined level is applied thereon externally and a shape retaining capacity for retaining and maintaining the shape always as it is when the load is not higher than the predetermined level, and the connecting portion 34a of the harness 34 is, when the load is not higher than the predetermined level, positioned more on the outer diameter side than the outer diameter of a constant velocity universal joint 9 at least until the connecting portion 34a is located out of the hub unit mounting hole NH of the knuckle N.

Abstract: In a thrust needle bearing employing lubricating oil and having rollers held by a cage and rolling on races, the value of the arithmetic average roughness Ra of roller is 0.03 to 0.15 ?m. Even when the bearing is used under the conditions where lubrication is lean or lubrication characteristics are wrong, the rolls can be prevented from being worn at the contact parts thereof with the pocket guide face of the cage and the life of the rollers and races can be increased.

Abstract: The invention relates to a measurement bearing, in particular for a wheel set of a rail vehicle, having a rotational axle and at least one first bearing ring (103), wherein the first bearing ring (103) defines a main supporting direction and a circumferential direction extending transversely with respect to the main supporting direction, and the first bearing ring (103; 203) is designed to take up bearing forces which have at least one force component in the main supporting direction, and during operation said bearing forces are applied to the first bearing ring (103) via a plurality of rolling bodies (104). The first bearing ring (103) has at least one first recess (105) in which a sensor device (110) is arranged, wherein the sensor device (110) is designed to sense a sensing variable which represents the bearing forces which are applied to the first bearing ring (103).

Abstract: A sensor-equipped structure of a vehicular-wheel bearing assembly mounted to an outer ring member of a vehicular-wheel bearing assembly, is provided with a sensor portion for detecting the rotation of an inner ring member rotatably disposed on a radially inner side of the outer ring member, and a cover formed of a metal. The sensor portion includes a sensor element for magnetically detecting the rotation of the inner ring member; a connector for supporting a terminal electrically connected with the sensor element; and a capacitor. The sensor portion is molded of a synthetic resin and unified with the cover. The cover has a through hole, the synthetic resin extends from an inner side of the cover through the through hole into the connector, the synthetic-resin is in contact with an inner surface of the cover and not in contact with a circumferential surface of the cover defining the through-hole.

Abstract: The invention relates to a wheel bearing arrangement comprising an encoder arranged in a radial annular region between an inner part and an outer part.

Abstract: A seal assembly has an inner wear sleeve with an axially extending tubular body. A flange extends radially outwardly from the body. An outer seal component has an axially extending tubular outer wall with a flange extending radially inwardly therefrom to support at least one dynamic seal lip in sealing engagement with the inner sleeve body. The outer seal component includes an annular retention lip disposed axially outwardly of the wear sleeve flange. The retention lip extends radially inwardly of a radially outer edge of the flange and is deflectable in an axial direction to enable the flange of the wear sleeve to be forced axially thereby during assembly, whereupon the retention flange returns to its non-deflected position to inhibit removal of the wear sleeve in the reverse axial direction. The annular retention flange has at least one axially extending debris expulsion slot for the escapement of debris.

Abstract: A sealing device 12b of a hub unit bearing O has a first slinger 16 fixed to an inner ring 5, a second slinger 17 fixed to an outer ring 1, and a sealing portion 18 which is fixed to the first slinger 16 and is slide-contacted with the second slinger 17. A magnetic encoder 20 is fixed to the first slinger 16. The magnetic encoder 20 and the sealing portion 18 are bond-fixed to the first slinger 16 with the same adhesive agent.

Abstract: An IC tag (9) capable of contactless communication is affixed on any one or more of element parts constructing the bearing device (1) for the wheel. For example, the IC tag is affixed on a forging forming an outer member (31) or an inner member (32). The place of installation of IC tag 9 is preferably chosen to be a surface of the forged component part which is not machined subsequent to forging.

Abstract: A rotary encoder includes a rotary shaft that may be manufactured easily and efficiently includes a rotating magnet with a mounting precision in which variance may not occur readily. A rotary shaft includes a rotary shaft main unit with a rotating magnet mounting part for mounting a rotating magnet and a ring-shaped rotating magnet that is formed integrally with this rotating magnet mounting part of the rotary shaft. In a method of manufacturing the rotary shaft, a ring-shaped rotating magnet is formed integrally with the rotary shaft mounting part of the rotary shaft main unit.

Abstract: A sensor-incorporated wheel support bearing assembly, enabling a load sensor to be compactly installed on the vehicle and capable of detecting a load on a wheel with good sensitivity includes a ring member, affixed to a stationary member, which has at an intermediate portion thereof a first non-contact ring portion not in contact with the stationary member, at one end a first contact ring portion in contact with the stationary member, and at the other end the following (A) or (B): (A) a second non-contact ring portion having a wall thickness greater than that of the first non-contact ring portion; (B) a second contact ring portion in contact with the stationary member. A strain sensor is fitted to; in (A), the first non-contact ring portion, and in (B), the first non-contact ring portion or first contact ring portion, which has smaller wall thickness.

Abstract: A drive wheel support bearing assembly includes a hub axle, a constant velocity joint and a bearing unit which are unitized together, and an inner member made up of an outer coupling member of the CVT with the hub axle mounted on an outer periphery of a hollow stem portion of the outer coupling member. Inner peripheral side raceway surfaces are formed on the hub axle and the outer coupling member. Hardened indentations are formed in an inner periphery of the hub axle, and the hub axle and the outer coupling member are plastically coupled integrally with each other by radially outwardly expanding a mounting area, at which the hub axle is mounted on the hollow stem portion, to allow it to bite into the indentations to crimp. Sensors for detecting the displacement or deformation of the outer coupling member and the hub axle are provided in the outer member.

Abstract: Embodiments of the present invention provide a method, system and apparatus for tracking a rotatable object. A device for tracking a rotatable object comprises a body, the body comprising a tracking portion. A device for tracking a rotatable object further comprises an attachment section connected to the body, for attaching the device to the rotatable object. The body and the attachment section are configured for balanced rotation when the rotatable object rotates.

Abstract: The invention relates to polyacetal compositions comprising a mixture of (i) a polyacetal resin, (ii) p-aramid particles and (III) a vinyl-terminated dimethyl siloxane polymer. These compositions are useful in preparing molded articles exhibiting a good balance between high self-lubricating properties and wear resistance, and especially useful in articles that are in motion with respect to other parts they are in contact with.

Abstract: A wheel support bearing assembly includes rolling elements (5) interposed between outer and inner members (1, 2), and sensor units (20) are fitted to one of the outer and inner members (1, 2), which serves as a stationary member. Each of the sensor units (20) includes a strain generating member (21), having two or more contact fixing segments fixed to the stationary member, and two or more sensors (22A, 22B) fitted to the strain generating member (21) for detecting strains occurring in the strain generating member. The two or more contact fixing members (21a) are arranged at the same axial positions of the outer diametric surface of the stationary member in a fashion spaced in a circumferential direction. A calculating section (30) is provided for estimating the load acting in the wheel support bearing assembly by the sum of respective output signals (A, B) of the sensors (22A, 22B).

Abstract: A sensor-equipped wheel support bearing assembly capable of accurately detecting load acting on the vehicle wheel by reducing concentration of strain on a cutout portion corner area of a strain generating member in a sensor unit is provided. The wheel support bearing assembly having rolling elements interposed between rolling surfaces in outer and inner members, includes at least one sensor unit provided in a stationary member, which is one of the outer and inner members. The sensor unit includes a strain generating member, having two or more contact fixing segments secured to the stationary member in contact therewith, and a sensor fitted to the strain generating member for detecting a strain in the strain generating member. The strain generating member has a cutout portion between the contact fixing segments, and corner area of such cutout portion is of an arcuately sectioned shape.

Abstract: A method for forming an end-side toothing arrangement of a rolling bearing, in particular a wheel bearing. In a first method step, before the reshaping of an end piece of a hub, a die is axially arranged on the rolling hearing in a preassembled state and, in a second method step during the reshaping of the end piece and the shaping of the end-side toothing arrangement, the die radially delimits a radial recess of the rolling rivet collar as it forms. In addition, the die reduces or prevents radial widening of the inner ring.