Abstract: A bearing unit for a marble cutting machine, comprising a radially outer ring, rotatable about an axis of rotation (X) of the bearing unit and provided with a radially outer flange portion; a stationary radially inner ring having a raceway and a through hole; a row of rolling bodies interposed between the radially outer ring and the radially inner ring; a seat formed in the radially inner ring and shaped as a portion of a circular crown; and a sensor fit in the seat, wherein a ratio between an internal diameter (D) of the through hole and an axial thickness (t) of the radially inner ring is between 6.7 and 11.1.

Abstract: A rotary bearing (50), especially for harmonic gearing, comprising an outer bearing ring (1b) and an inner bearing ring (1a) arranged therein; whereby the inner bearing ring (1a) and the outer bearing ring (1b) are each provided with at least one receptacle (10, 11) through which, when the two receptacles (10, 11) are in a corresponding position with respect to one another, rolling elements (8) can be inserted through a receptacle opening (22) formed by the two receptacles (10, 11) into an anti-friction bearing between the bearing surface (7) of the inner bearing ring (1a) and the bearing surface (9) of the outer bearing ring (1b), wherein a guide ring (20) for the rolling elements (8) is arranged in at least one of the two receptacles (10, 11) between the receptacle opening (22) and the rolling elements (8).

Abstract: An instrumented bearing comprising a stationary outer ring and a rotating inner ring is provided with an encoder, a sensor assembly comprising a read head positioned opposite and at a reading distance from the encoder, and a leakage current collector capable of coming into sliding contact with an annular contact which can be rigidly connected, directly or indirectly, to the inner ring. The encoder and the read head are positioned axially between the outer ring and the leakage current collector. A conductive electrical connection between the leakage current collector and the stationary outer ring also forms a magnetic shield of ferromagnetic material, extending from the outer ring to the leakage current collector by surrounding the encoder and the read head.

Abstract: Disclosed are an in-wheel working device and an automobile including the in-wheel working device. According to one aspect of the present disclosure, provided is an in-wheel working device including a rotation detection sensor coupled to a wheel bearing. The rotation detection sensor includes: a sensor stator coupled to an outer race of the wheel bearing; and a sensor rotor coupled to a hub of the wheel bearing. The sensor stator includes a printed circuit board (PCB) substrate having a surface on which a coil pattern made of a metal material is formed.

Abstract: The present disclosure generally relates to a bearing hub assembly of a rail guide wheel apparatus for a rail vehicle. The bearing hub assembly may couple rail wheels to the rail guide wheel apparatus. The rail guide wheel apparatus may be included on a Hi-Rail vehicle or any other vehicle configured to travel along railroad tracks. The bearing hub assembly includes a sensor that is integrally mounted within the bearing hub assembly. The sensor collects information associated with rotation of the rail wheels. Information collected by the sensor may be used to determine a speed, direction, location, and/or distance traveled of the rail vehicle.

Abstract: According to one embodiment of the present disclosure, there is provided a failure diagnosis device used for diagnosing the presence of failure or abnormal operation of a wheel bearing. The failure diagnosis device according to one embodiment of the present disclosure may comprise a housing; a magnetic coupling part provided in the housing; and a sensing part provided in the housing and configured to detect physical characteristic related to an operational state of a vehicle. According to one embodiment of the present disclosure, the sensing part may comprise an acceleration sensor configured to collect acceleration information, and the failure diagnosis device may be configured to be detachably mounted to one side of a wheel by virtue of a magnetic force generated by the magnetic coupling part.

Abstract: A condition monitoring apparatus (300) for a system comprising rotating or reciprocating machinery and a seal is disclosed herein. The apparatus comprises a first acoustic sensor (301) coupled to the seal for providing a first acoustic emission signal, a second acoustic sensor (302) coupled to the rotating or reciprocating machinery for providing a second acoustic emission signal, and a filter module (310). The filter module is configured to perform active noise cancellation based on a comparison of the first acoustic emission signal and the second acoustic emission signal.

Abstract: Sealing device for a wheel hub unit is disclosed herein, wherein the sealing device being able, during use, to form a static seal for protecting the wheel hub unit from any environmental pollutant and being provided with a screen, which is engaged with a collar of the wheel hub unit and has a bottom wall, a cylindrical side wall integral with and more or less perpendicular to the bottom wall. The sealing device is designed and structured to protect the wheel hub unit from any environmental contaminant that the wheel hub unit may be exposed to during usage.

Abstract: The present invention relates to a device (1) for monitoring the degradation of rolling bearings (15a, 15b) in a rotating machine (10) comprising at least two rolling bearings (15a, 15b) each having two concentric rings (16-18) rotating relative to each other, at least one ring (17, 18) of each bearing (15a) being rotationally connected to a ring (17, 18) of another bearing (15b). The device (1) comprises a member (30) for measuring the speed of rotation (?1) of the rotationally connected rings (17, 18), and data processing means suitable for detecting a variation in the speed of rotation (?1) of the rotationally connected rings (17, 18), which variation is representative of degradation of a bearing (15).

Abstract: A wheel bearing assembly is disclosed that a bearing ring defining a first splined portion, a joint element including a second splined portion configured to matingly engage with the first splined portion, and a first retention assembly arranged radially outward from the first and second splined portions. The first retention assembly is configured to axially retain the bearing ring with the joint element.

Abstract: An eddy current probe providing a first sensor element having a first body and a first induction coil mounted onto a distal portion of the first body, a second sensor element having a second body and a second induction coil mounted onto a distal portion of the second body, a probe casing provided with first and second through-holes inside which are respectively mounted proximal portions of the first and second bodies of the first and sensor elements, the distal portions of the first and second bodies protruding outwards with regard to the probe casing, and a cap mounted onto the probe casing and covering the distal portions of the first and second bodies and the first and second induction coils.

Abstract: A rotation detection device includes a detected member being mounted to a rotating member and being configured to rotate integrally with the rotating member, and a sensor section being arranged to face the detected member, in which the sensor section includes two magnetic sensors, each of which includes a detection section having a magnetism detection element for detecting a magnetic field from the detected member, the two detection sections of the two magnetic sensors being arranged side-by side along a rotational axis line direction, and a housing portion comprising a resin mold provided to collectively cover the two magnetic sensors and having a facing surface facing the detected member. The two detection sections of the two magnetic sensors are separated each other. A minimum distance between the two detection sections of the two magnetic sensors is 0.05 mm or more and 2.00 mm or less. The resin mold enters into a space between the two detection sections of the two magnetic sensors.

Abstract: A wheel hub assembly assembly having a central axis (X) and covers therefore. An outer ring provided with a tubular mounting portion, and a cover having a keying portion which is inserted inside the tubular mounting portion. The cover is made of plastic material, the keying portion comprises an annular seat made of plastic and a sealing element made of rubbery elastic material. The sealing element is defined by a solid of rotation mounted inside the annular seat over a whole of an axial length of the annular seat so as to project radially outside of the annular seat to make contact with the tubular mounting portion of the outer ring thereby sealingly closing the wheel hub assembly.

Abstract: A reflective optical encoder has a hub member mounted on a rotation shaft, and a circular scale plate fixed to the hub member by an adhesive and having, on a front surface thereof, a pattern composed of high reflection portions having a high light reflectance and low reflection portions having a low light reflectance. Further, a step is provided at an outer peripheral portion of the hub member, and an outer diameter of the scale plate is larger than an outer diameter at an outermost peripheral portion of an adhesive surface of the hub member in which the scale plate and the hub member are bonded.

Abstract: A bearing ring having a main part ring provided with at least one groove formed a surface of the main part ring. The bearing ring further provides at least one fiber sensor mounted inside the groove. The bearing ring also include at least one counterpart ring mounted into the groove of the main part ring and coming into contact with the fiber sensor to maintain the fiber sensor against a groove bottom, the counterpart ring being secured to the main part ring.

Abstract: Sealing device for a wheel hub assembly provided with a rolling bearing, the sealing device being provided with a shield mounted on an outer ring of the bearing and with an annular cylindrical wall having an inner lateral surface mounted on an outer lateral surface of a collar of the outer ring; and with a sealing material fixed to the shield; an annular snap catch being positioned radially inside the cylindrical wall and extending radially from the inner lateral surface through a specified radial thickness so as to be snap-fitted into a circular groove formed on the outer lateral surface of the collar, and the sealing material being positioned behind the catch before the shield is mounted on the outer ring, with a radial overall dimension smaller than the thickness of the catch.

Abstract: A system for compensating for the stresses applied to a bearing that rotatably supports a rotor shaft of a rotating machine relative to a stator of the machine. The system provides at least one sensor for measuring an input signal positioned on an element of the bearing, a module for acquiring the input signal configured to convert the input signal into a value of the deformation applied to the rolling bearing, a module for determining a compensation signal as a function of the deformation value, and an amplifier module configured to control a magnetic actuator rotatably supporting the shaft of the rotor and including at least one electromagnet, the amplifier module being configured to convert the compensation signal into a voltage signal transmitted to the electromagnet of the magnetic actuator, the magnetic actuator being configured to exert a force on the rotor shaft as a function of the voltage signal.

Abstract: A rotation detecting device includes a member to be detected, and a sensor section arranged opposite the member to be detected. The sensor section includes two magnetic sensors, each including a detecting portion to detect a magnetic field produced from the member to be detected, with the detecting portions of the sensors being arranged in such a manner as to overlap each other in an opposite arrangement direction of the sensor section and the member to be detected, and a housing provided to cover the sensors together, and including an opposite surface to the member to be detected. The detecting portion of one of the sensors, which is arranged in a side of the sensor section close to the member to be detected, is arranged in such a manner as to be inclined with respect to the opposite surface of the housing.

Abstract: A device for capturing and transmitting data of a bearing of a steel mill or rolling mill includes a sensor with a data processing unit arranged in a bearing housing capturing and storing data of a bearing. A data transmission unit in the bearing housing wirelessly transmits data of the sensor to a remote receiver. An energy receiving unit in the bearing housing receives energy wirelessly and transmits it to the data transmission unit and the data processing unit. An energy source with an energy transmitting unit arranged outside the bearing housing supply the energy unit wirelessly. The energy transmitting unit is covered by the bearing housing and is arranged on or in a structural part which adjoins the bearing housing and is part of the supporting structure of mill and remains on the supporting structure of the mill when the bearing housing is removed for maintenance purposes.

Abstract: A motor includes a bearing having a rolling member disposed between an inner ring and an outer ring, a spring connected to the outer ring, and a pusher connected to the spring and configured to move to a first position spaced apart from the inner ring by the spring. The pusher is further configured to move to a second position at which friction with the inner ring is caused by a pressure of air. The inner ring is spaced apart from the rotating shaft by a gap between the inner ring and the rotating shaft when the pusher is at the second position.

Abstract: A rolling bearing device includes a rolling bearing that includes an outer ring having an inner peripheral surface on which a first raceway surface is provided, an inner ring having an outer peripheral surface on which a second raceway surface is provided, and rolling elements interposed between the first and the second raceway surfaces; a strain sensor configured to detect a strain of the rolling bearing; and a fixation portion configured to fix the strain sensor to a peripheral surface that includes at least one of an outer peripheral surface of the outer ring and an inner peripheral surface of the inner ring. The fixation portion fixes at least two locations in the strain sensor to the peripheral surface such that a detection region of the strain sensor and the peripheral surface are not fixed to each other, the at least two locations facing each other across the detection region.

Abstract: A condition monitoring system for monitoring a rolling element bearing. The system includes a signal processing unit and a vibration energy harvester. The vibration energy harvester provides an electromagnetic transducer. When vibrated, a coil moves relative to a static electromagnetic field to create power. To create a compact and efficient condition monitoring system, it uses the electromagnetic transducer also as a vibration sensor, a velocity sensor. The signal processing unit determines if the bearing has been damaged and in some embodiments also the extent of the damage. The electromagnetic transducer is attached directly or indirectly to the rolling element bearing.

Abstract: A sealing device for a wheel hub unit configured to form a static seal to protect the wheel hub unit from environmental contaminants. The sealing device including a metal shield that is coupled to a collar of the wheel hub unit, and has an end wall, a cylindrical lateral wall integral with, and orthogonal to, the end wall. The lateral wall has twice the thickness of the end wall in order to impart stiffness to the metal shield, and a stop edge integral with the cylindrical lateral wall on the opposite side to the end wall, for bearing axially against the collar; a sealing gasket formed by a silicone-based sealing compound being provided to allow the formation of a bead against a cylindrical lateral wall in an assembly configuration of the sealing device.

Abstract: One aspect of the present disclosure provides a wheel speed detecting device installable in a wheel bearing comprising an outer ring and an inner ring rotatable relative to the outer ring by rolling elements. The wheel speed detecting device may comprise a frame fixed on the inner ring so as to surround an outer circumference of the inner ring, a first target disposed along an outer circumference of the frame, a second target disposed at a central portion of the frame, and sensor configured to detect signals generated from each of the first target and the second target to measure rotational information of the inner ring.

Abstract: A rotary electric machine includes: a housing; a stator that is disposed in the housing; a rotating shaft that is rotatably disposed in the housing; a rotor that is disposed on the rotating shaft; and a rotational angle detecting apparatus that generates a signal that corresponds to a rotational angle of the rotating shaft. The rotational angle detecting apparatus includes: a magnetism generating body that is disposed on an axial end surface of the rotating shaft; and a magnetic sensor that faces the magnetism generating body. A recess portion is disposed on the end surface. The magnetism generating body is disposed in the recess portion.

Abstract: A bearing comprises: an inner ring; an outer ring rotatable relative to the inner ring; and an inductive sensor for detecting a measured variable corresponding to a rotation of the outer ring relative to the inner ring. The sensor comprises a stator torque-proof connected to one of the inner ring and the outer ring, and a rotor torque-proof connected to the other of the inner ring and the outer ring.

Abstract: A bearing arrangement includes two bearing rings which can be rotated with respect to one another about a common axis, an annular module carrier, an encoder, and at least one sensor module. The module carrier is arranged axially on one of the two bearing rings. The encoder is arranged on the other one of the two bearing rings. The at least one sensor module is arranged in the module carrier. In some embodiments, the module carrier has a cut-out on at least one of its axial side surfaces. through which a lubricant can be introduced into the bearing. The cut-out is arranged circumferentially in the region away from the sensor modules. In other embodiments, the module carrier has at least one predetermined break point for configuring a cut-out.

Abstract: An encoder includes a magnetic sensor having higher detection sensitivity to a magnetic field applied in a reading direction, while having lower detection sensitivity to a magnetic field applied in a direction forming a greater angle with respect to the reading direction, an encoder substrate having the magnetic sensor mounted thereon, a magnetic shield to shield against a magnetic field including a side portion covering sides of the magnetic sensor and a top-side portion covering a top of the magnetic sensor, a permanent magnet located to face the encoder substrate, a shaft having the permanent magnet attached to a tip end of the shaft, and a bracket to support the shaft in a rotatable manner, wherein on the side portion of the magnetic shield, a notch as a connector insertion portion is located not to overlap an extended area of the magnetic sensor in the reading direction.

Abstract: A hydraulic power unit has a housing, at least one pump element, a pressure collecting plate and an electric motor. The electric motor has at least one end shield, a stator and a rotor fixed on a rotor shaft. The at least one end shield has at least one partially circumferential functional recess extending between an outer and an inner circumferential surface of the end shield in the direction of a rotor shaft bearing seat. The functional recess thus formed permits the arrangement of functional elements at a central point of the hydraulic power unit in a space-efficient manner without negatively influencing the overall size of the hydraulic power unit.

Abstract: The magnetic encoder includes: a core member of annular shape having a press-fitting portion which bends and extends from an edge of a track formation surface, and to which a rotary shaft is press-fitted and fixed; and two or more rows of magnetic tracks arranged adjacent to each other on a magnetic member provided on the track formation surface, each track having N poles and S poles alternately magnetized thereon. The two or more rows of magnetic tracks include a main track that has a largest number of magnetic poles and is used for calculating an angle of rotation, and a sub track used for calculating a phase difference from the main track. The main track is located on a side more distant from the press-fitting portion than the sub track.

Abstract: A bearing cover (10) has a bearing receiving space (18) for a bearing (9) and has a fastening region (17) for fastening the bearing cover (10) to a housing body (7). The bearing receiving space (18) of the bearing cover (10) is decoupled electrically from the fastening region (17) of the bearing cover (10) to prevent an undesired flow of electric current across the bearing (9).

Abstract: A bearing assembly, comprising a bearing configured to support a machine part, an installation space configured to receive at least one electronic module, a mount in the installation space that includes an electric line and the electronic module is attached to the mount, one or more continuous electronic conductor paths, and one or more interrupted conductor path that is parallel to the continuous electronic conduct path.

Abstract: A bearing includes a first ring and a second ring capable of rotating concentrically relative to one another. At least one groove is formed on an axial cylindrical surface of the second ring and oriented towards the first ring. The groove is axially delimited by two side edges 50a. The bearing further includes at least one optical sensor mounted on the first ring to emit a beam oriented towards at least one of the side edges of the groove of the second ring, the optical sensor being able to detect axial positions of the side edge.

Abstract: The present disclosure relates to a method and an apparatus for monitoring a rolling bearing of an electric motor, wherein the rolling bearing forms a capacitive parasitic antenna, having the following steps of: a. capturing the electromagnetic spectrum emitted by the parasitic antenna in a manner triggered by spark formation in the rolling bearing over a respectively defined period t during operation of the electric motor; b. evaluating the number N of electromagnetic pulses (a, b, c, d, e) received in the spectrum and the amplitude A of said pulses; c. capturing the change in the number N of electromagnetic pulses (a, b, c, d, e) and/or the amplitude A of said pulses, and d. determining whether the increase in the number N and/or in the amplitudes A of the electromagnetic pulses (a, b, c, d, e) increases in a non-linear manner with time.

Abstract: A rolling bearing unit includes an outer race and an inner race between which a bearing space is defined; and a circular annular seal member covering a side opening of the bearing space. The circular annular seal member is constituted by a plurality of circumferentially divided seal member parts circumferentially adjacent to each other, and coupled together as a circular annular coupled member by coupling pieces. The seal member includes a distance adjuster capable of adjusting the circumferential distance between a pair of connection portions where the seal member parts are connected to one of the coupling pieces.

Abstract: 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.

Abstract: 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 is disposed about the inner ring and has inboard and outboard axial ends and a bearing outer race on an inner surface. One ring is coupled with a wheel and is rotatable about an axis and the other ring is fixedly coupled with a vehicle. An annular displacement limiter extends radially outwardly from the inner ring and has a radial stop surface spaced axially from the inboard end of the outer ring. The stop surface engages with the outer ring end when one ring displaces axially relative to the other ring. Preferably, the limiter is integrally formed with an annular insert providing a bearing inner race, but may be separately formed and disposed about the insert or the inner ring outer surface.

Abstract: 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. An annular displacement limiter extends radially from one ring and has a circumferential stop surface spaced radially from a surface of the other ring. The stop surface engages with the ring surface when the ring displaces radially relative to the other ring. A seal includes an annular sealing member coupled with one ring and is sealingly engageable with the limiter or is mounted on the limiter and sealingly engageable with one ring or a rigid seal member coupled with one ring.

Abstract: The present invention relates to a composite component including a metal component having a substantially cylindrical shape or a substantially annular shape, and a ring-shaped bonded magnet disposed on the outer periphery of the metal component, the ring-shaped bonded magnet containing a thermoplastic resin, magnetic particles, and rubber particles.

Abstract: [Problem] To provide a sealing device that has a high function of stopping the entry of foreign matter. [Solution] Provided is a sealing device disposed between a rotating inner member and a fixed outer member of a rolling bearing, said sealing device comprising: an annular rotating seal member fixed to the inner member; and an annular seal cover fixed to an end portion of the outer member. The seal cover comprises: a fixed portion that is disposed in an interval between the outer member and the inner member and fixed to the end portion of the outer member; and a protective portion that is disposed radially outward of the rotating seal member and stops foreign matter from advancing to the rotating seal member from the outside. The rotating seal member comprises: an attachment portion fixed to the inner member; and a seal lip and a dust lip that extend from the attachment portion toward the seal cover. The dust lip extends obliquely radially outward from the attachment portion toward the seal cover.

Abstract: A rolling bearing is provided which includes an inner ring; an outer ring; rolling elements disposed in the bearing space; a cage rollably retaining the rolling elements; and a seal member made of a resin. The seal member includes a support frame, a plurality of window holes, and a filter closing the window holes. Lubricating oil flows through the bearing space to lubricate the interior of the rolling bearing. The cage is made of a magnetic material, and has a pulse ring integrally formed at an end of the cage. The rolling bearing further includes a magnetic rotation sensor mounted to the seal member so as to be capable of being opposed to any of recesses and protrusions of the pulse ring.

Abstract: A method for producing a clamping ring in which pins that protrude in the region of or near a ring contour are formed on the top and bottom surfaces of a flat sheet metal material and after the ring contour is cut out, burrs that are produced during the cutting are removed by a deburring process. Advantages for the machining of the clamping ring are achieved if before a finish cutting by a complete cutting-out of the ring contour that is carried out from the one side of the flat sheet metal material, the ring contour is partially cut out from the other side in the vicinity of or near the pin protruding from this other side.

Abstract: This bearing device (1) for vehicle wheels comprises: an inner undercut part (8) provided in a portion at which an inner rolling surface (3d) formed on the inner side of an inner member (3) and an inner flange surface (3m) of the inner rolling surface (3d) intersect; an outer undercut part (9) provided in a portion at which an inner rolling surface (3c) formed on the outer side of the inner member (3) and an outer flange surface (3n) of the inner rolling surface (3c) intersect; and a vehicle wheel installation flange (3e) provided at a portion adjacent to the inner rolling surface (3c) formed on the outer side of the inner member (3), wherein, when the radius of curvature of the inner undercut part (8) is Ri, and the radius of curvature of the outer undercut part (9) is Ro, the relationship of Ri<Ro is satisfied.

Abstract: A method for examining the raceway of a large roller bearing in a wind turbine, in which a raceway of the large roller bearing is measured using an ultrasonic measuring unit mounted on the bearing housing, wherein the ultrasonic measuring unit detects two edges of the raceway and the relative position and/or formation thereof in relation to one another is measured.

Abstract: A bearing device (1) for a vehicle wheel is provided with: a magnetic encoder (7) provided to an inner-side end of an inner race (4), which is an inward member; a cover (11) for covering an inner-side opening (2B) of an outer race (2), which is an outward member, the cover having opened therein a sensor attachment hole (11H) in which an opening (11A) and a thin-walled bottom (11B) are formed; and a magnetic sensor (9) disposed facing the magnetic encoder across the bottom. The magnetic sensor is inserted into the sensor attachment hole in the cover through the opening (11A). The bottom (11B) in the sensor attachment hole is formed in such a shape as to bulge toward the inner side.

Abstract: A sensorized roller of a bearing, the roller having a central bore extending axially therethrough and a sensor module mounted within the bore in a non-fixed manner. The module includes at least four deformation sensors arranged circumferentially around a module center axis, at defined angular intervals. Each deformation sensor measures a radial distance (measured for defined angular positions lying within an angular span of 180°) between the center axis and a radially inner bore surface. The module includes a processor which receives each measured radial distance and calculates a radial load (under static or dynamic conditions) acting on the roller by estimating an offset angle of the fixed reference relative to the radial load direction and by using the estimated offset angle and each measured radial distance as inputs to a mathematical model, describing a deformation radius of the bore as a function of angular position and load dependent parameters.

Abstract: The invention provides a load determining system including a sensorized rolling element bearing in a hub unit for wheels. The bearing includes a first ring and a second ring as an inner ring and an outer ring. Either one of the first and second ring may be the inner ring, the other ring being the outer ring. The system includes at least one magnetic sensor attached to the first ring that interacts with a target wheel attached to the second ring. Further, the system includes a signal processing unit configured to receive the magnetic sensor output of the at least one magnetic sensor. The signal processing unit is configured to determine at least axial forces acting on the bearing based on the amplitude of the magnetic sensor output. It is proposed that a pitch wavelength of the target ring is 4 mm or less.

Abstract: A charger incorporated in a vehicle wheel supporting rolling bearing unit detects an output voltage of an electric generator and calculates a rotation speed of a hub. When a rotation speed of the hub is in a low speed state where a sensor and a wireless communication device are operated by electric power supplied 5 by a battery, a frequency of wireless communication performed between the wireless communication device and a calculator disposed on a vehicle body side is changed according to the rotation speed of the hub or a traveling speed of a vehicle.

Abstract: A sealing assembly including an elastic seal lip having a movable part is provided. The seal lip is configured to be attached to a first part of a machine and to be in contact with a second part of the machine. At least one acceleration sensor is fixed to the movable part of the seal lip, and that assembly further includes a data processing device for processing data obtained from the acceleration sensor. The data processing device is configured to determine the orientation of the acceleration sensor in relation to the direction of gravity.

Abstract: A charger incorporated in a vehicle wheel supporting rolling bearing unit detects an output voltage of an electric generator and calculates a rotation speed of a hub. When a rotation speed of the hub is in a low speed state where a sensor and a wireless communication device are operated by electric power supplied 5 by a battery, a frequency of wireless communication performed between the wireless communication device and a calculator disposed on a vehicle body side is changed according to the rotation speed of the hub or a traveling speed of a vehicle.