Abstract: A variable reluctance sensor interface module having a variable attenuation circuit and a rectifier and differential to single-ended conversion circuit for operating in a current mode to attenuate a differential input voltage. The variable attenuation circuit receives an input differential voltage from a magnetic sensor and converts the differential voltage to current. First and second current sourcing circuits, each including a plurality of current sourcing branches, receive the current and provides variable current attenuation by switching in and out transistor-based current sourcing branches. The rectifier and differential to single-ended conversion circuit converts the variably attenuated currents to a voltage output.

Abstract: A wheel bearing sensor for measuring rotary motion of a wheel includes a signal generator ring that rotates with the wheel and a sensor-accommodating housing, which is a rotation-symmetric element, such as a deep drawn sheet-metal part. This housing accepts a speed sensor in a sensor insertion side and retains the sensor in a fixed position. A radially outwardly directed flange on this side of the housing engages a sensor flange on the sensor when the sensor is inserted in the sensor insertion side of the sensor-accommodating housing. The sensor flange has prongs that engage the tooth gaps when the speed sensor is inserted into the housing. These prongs backgrip the teeth when the speed sensor rotates within the housing.

Abstract: In a connection arrangement between a sensor and connection leads, only a small installation space is required. To this end, the connection arrangement has a signal amplifier, which is electrically contacted by means of bond connections with the sensor and the connection leads. This is achieved by means of connecting elements, which are designed as thin sheet-metal shaped parts and are fixed with tab-shaped end sections in a housing of plastic, in which the signal amplifier is also inserted. The end sections, the signal amplifier, and the bond connections are arranged in a space-saving manner in roughly one plane. The connection arrangement is especially suited for sensors used to measure the speed of motor vehicles.

Abstract: An outer ring has a spherically convex outer surface mounted within a bore of a housing such that the outer ring may be misaligned with respect to the axis of the bore. A sensor target is mounted on an inner ring that is rotatable with respect to the outer ring, and a seal is mounted on the outer ring. A sensor is mounted on the seal in proximity to the sensor target, and a flexible electrical conductor is connected to the sensor for transmitting signals from the sensor. A portion of the flexible electrical conductor is fixed with respect to the housing. Circuitry may be electrically connected to the flexible electrical conductor. The flexible conductor and circuitry may be provided by a flexible circuit board.

Abstract: A rotational speed sensor system which uses the sensor and a sensor electronic circuit to test the air slot between the speed sensor and an encoder to determine if the air slot falls within acceptable limits.

Abstract: A ring-shaped bearing failure sensor constructed of insulation and electrically conductive material utilizing printed circuit board technology. Because of its construction, high dimensional tolerances can be achieved and the ring can be easily assembled as a component of a generator. Further, the bearing sensor is equipped with a resistor so that the operational readiness of the sensor can be monitored.

Abstract: A wheel revolution detecting device comprises a sensor rotor fixed to a wheel and coaxial with a rotation axis thereof and having circumferetially continuous irregularities on a peripheral surface thereof, and a pickup sensor fixed to a vehicle body and including a detecting part disposed near the irregularities of the sensor rotor, the detecting part having an end face inclined with respect to a longitudinal axis thereof.

Abstract: A speed sensor assembly is mounted to a steering knuckle with a threaded fastener. The fastener is initially hand tightened until it is axially obstructed by a spacer provided on the speed sensor assembly. A tool then is used to apply high torque to the fastener so as to deflect or break away the spacer so that the speed sensor assembly may be tightly clamped to the steering knuckle by the fastener. The spacer prevents hand tightened speed sensor assemblies from being properly aligned with a tone wheel. Unless a tool is used to fully seat the speed sensor assembly, the assembly will give a false test signal indicative of improper or incomplete mounting.

Abstract: A revolving speed detecting device for use with a rolling contact bearing having a rotary ring and a fixed ring. It has a magnetic ring provided on the peripheral surface thereof with a plurality of teeth at equal pitches and mounted on the rotary bearing ring. A sensor made of soft ferrite or by laminating a plurality of silicon steel plates is mounted on the fixed bearing ring opposite to the teeth of the magnetic ring. A coil is wound around the sensor. A high-frequency voltage generator is connected to the coil. A detecting device for detecting the output voltage of the coil is also connected to the coil.

Abstract: A magnetic sensor includes a DC power source, a multivibrator circuit composed of two CMOS inverters, a resistor, and a capacitor, each of the CMOS inverters being composed of a pMOS transistor and an nMOS transistor connected in series, and a magneto-impedance element. In a transition state attributable to switching operations of the CMOS inverters, a sharp pulse current is caused to flow through the magneto-impedance element so as to excite the magneto-impedance element sufficiently causing the skin effect, whereas in a steady state, the flow of the current is stopped by the CMOS inverters so as to reduce power consumption.

Abstract: A rolling bearing unit has a hub which is formed with a housing for partly forming a constant velocity joint, wherein a connecting tube 20 of a magnetic metal plate is provided to have a base half portion 21 fitted onto the opening portion of the housing and a tip half portion 22 projecting from the housing, and a number of through holes 26 are formed in an axial portion of the base half portion and arranged circumferentially to function as a tone wheel.

Abstract: An antifriction mounting includes a bearing having an inner and an outer ring and rolling bodies between them. A seal closes the lateral side of the bearing between the rings. A pulse generator is rotatable with a rotatable one of the rings, which is either the inner or the outer ring. A non-ferromagnetic cover is outside the pulse generator and also seals the opening into the space between the rings. A rotational speed sensor on or outside the cover scans the pulse generator magnetically without hindrance from the non-ferromagnetic cover. Radio signals may transmit other information besides rotation speed. Appropriate transmitters and receivers for those signals can be placed at the pulse generator and/or the sensor.

Abstract: A mounting assembly for adjustably attaching a first component, such as a wheel speed sensor, to a second component, such as a part of a wheel suspension, comprises a mounting device having first and second regions, and an intermediate region located between the first and second regions, the first component being mounted on the first region of the mounting device, and an attachment element, such as a screw, which connects the second region of the mounting device to the second component. The mounting device is shaped so that its intermediate region is spaced away from the second component. Upon tightening of the attachment element, the intermediate region of the mounting device is brought into contact with the second component by elastic or plastic deformation of the mounting device, whereby the position of the first component is fixed in relation to the second component.

Abstract: The shaft monitoring device for monitoring the rotation of a shaft about a longitudinal axis is comprised of an encoder, a stationary housing, and a shaft-engaging member rotatably attached to the stationary housing. The encoder has a target and a proximity sensor located within the housing. The housing is mounted to a stationary object such as a block-type bearing supporting one end of the rotating shaft to be monitored. A first end of the shaft-engaging member is placed against the shaft. The first end firmly engages the rotating shaft, thereby allowing the shaft-engaging member to rotate in unison with the rotating shaft. As the shaft rotates, the target attached to a second end of the shaft-engaging member also rotates in unison. As the target passes over the end of the proximity sensor, the sensor reads the presence of the target and closes a switch. Each time the switch is closed, a pulse is generated.

Abstract: A rolling bearing unit with rotating speed sensor comprising a stationary outer ring member having an outer ring raceway, a rotatable inner ring member having an inner ring raceway, a plurality of rolling elements rotatably provided between the outer ring raceway and the inner ring raceway, a cylindrical magnetic tone wheel fixed to the inner ring member and, having a cylindrical fixing portion fitted onto the inner ring member, a cylindrical detecting portion provided concentric with the cylindrical fixing portion and formed with rotating cutouts, and a stepped portion provided between the cylindrical fixing portion and the cylindrical detecting portion, and a cover comprising a synthetic resin block and a metal portion to be securely mounted to the outer ring member, and an annular sensor embedded in the synthetic resin block so as to be opposed to the tone wheel, and the cylindrical fixing portion having an inner peripheral face on which a plurality of engagement portions are arranged in a single circle to

Abstract: In order to be able to attach a rotational-speed or direction-of-rotation transmitter, in particular in the form of a rotor (3), to the circumference of a rotor shaft (2) in a simple and reliable fashion, the rotational-speed or direction-of-rotation transmitter is connected indirectly to the rotor shaft (2) by means of at least one separate, radially resilient or elastic intermediate securing part. Preferably, at least one rubber ring (4 or 5) is provided as the intermediate securing part and is clamped onto the rotor shaft (2) or pressed into a shaft orifice of the rotor (3) expediently before final assembly, to provide a premounted unit.

Abstract: This invention relates to a microcomputer used to bias an analog signal conversion circuit. The microcomputer is programmed to select between one of two possible signal processing configurations. This is done rather than populating or depopulating components on the module, thus changing the hardware configuration.

Abstract: A multi-channel wheel speed sensor having a custom integrated interface circuit. The interface circuit is configured with voltage programmable threshold adjustment allowing the circuit sensitivity to be specially tuned to detect wheel speeds in very specific ranges for a variety of applications. This feature can be implemented in ABS and/or traction control systems wherein in ABS mode a lower sensitivity adjustment can be used since wheel speeds below 5 mph do not need to sensed and processed precisely and in traction control mode very low wheel speeds, 1-1.5 mph are sensed and processed especially at non-drive wheels which provide speed reference for slipping or spinning drive wheels. The interface circuit is also configured with a test circuit for testing the integrity of the speed sensors and for providing information to the controller about the sensor/tone wheel gap.

Abstract: A device for measuring a rotary frequency of a rotating vehicle tire includes a number of first poles uniformly arranged on a circle with a radius R1 on or within a vehicle tire. A first sensor, for sensing the first poles, is stationarily arranged at a distance R2 from a rotational axis of the vehicle wheel. The radii have the following relationship: 0.9 R1<R2<1.1 R1. A computing unit is connected to the first sensor. The first sensor sends first signals to the computing unit when the first poles pass the first sensor. The computing unit determines a first time period between passing of sequential ones of the first poles. The computing unit multiplies a reciprocal value of the first time period by a reciprocal value of the number of the first poles to a multiplication product and supplies the multiplication product as a measure of a first rotary frequency to a user device.

Abstract: A snap fit integrated wheel speed sensor assembly consists of a dust cap which is mounted over the end of a vehicle bearing assembly. The dust cap has an integral sensor-receiving cavity. A vehicle wheel speed sensor is positioned inside of the receiving cavity. A snap ring functions as a compression spring to engage the wheel speed sensor and the sensor-receiving cavity so that the sensing assembly remains stationary in the sensor-receiving cavity while permitting quick, easy and efficient installation and removal of the wheel speed sensor.

Abstract: A wheel mounting assembly for installing a transmission-based anti-lock braking system sensor thereon has a stub axle. An anti-lock braking system sensor is mounted relative to the stub axle. A hub is rotatably mounted on the stub axle. A disc is mounted for rotation with the hub. The disc has a plurality of apertures circumferentially spaced on a face thereof for passing the anti-lock braking system sensor as the disc rotates.

Abstract: A rotary pulse generator kit for monitoring the rotation of a shaft includes an enclosure capable of accepting two different sensor modules. Each sensor module may include axially aligned magneto-resistive sensing elements that sense magnetic poles imprinted in a pattern on a rotor that rotates with the shaft. Two sensor modules having different incremental pulse output rates may be supplied with the tachometer kit. In this way, the shaft may be monitored by a pair of sensor modules pre-set at different incremental pulse output rates, mounted to the same enclosure.

Abstract: An arrangement for fixing the position of a coil carrier in a cup-shaped formed casing part between a base of the casing part and a closure part which attaches to the casing part, comprises at least one spring element located on the circumference of the coil carrier and extending away from the coil carrier at a right angle to the longitudinal axis of the coil carrier and towards a wall of the casing part. The spring element is sized and shaped so that it presses against the wall of the casing part, thereby elastically fixing the position of the coil carrier in the casing part. In a preferred embodiment, at least one rigid abutment is also provided on the coil carrier. The rigid abutment extends at a right angle to the longitudinal axis of the coil carrier and towards the wall of the casing part. The rigid abutment is sized and shaped to securely support the coil carrier against the wall of the casing part via the rigid abutment.

Abstract: A sensing device conveniently and accurately produces electrical signal representative of the direction in which he steerable wheels (10 and 11) of a vehicle are pointing and the rate of change of the direction of the steerable wheels. The device includes a circular or donut-shaped magnet (26) that is attached to the pinion (12) of a rack and pinion steering gear (6). The magnet has a plurality of magnetic poles (28) spaced around its circumference and preferably extending axially through the magnet. As the magnetic poles rotate past a plurality of sensors (36 and 38) that are located in quadrature positioning relative to the magnetic poles and to each other, the sensors generate electrical signals that are processed to determine the rotation direction of the pinion and the rate of such rotation.

Abstract: The system detects and monitors the rotational speed N.sub.R of a rotor and the rotational speed N.sub.TL of a motor of a helicopter and includes first and second devices for detecting N.sub.R and N.sub.TL, and delivering signals to first and second processing units which are connected to a display unit for displaying N.sub.R and N.sub.TL. The second processing unit includes an electronic processing unit which receives the signals relating to N.sub.TL and the signals relating to N.sub.R and which is capable of comparing the values of N.sub.R and N.sub.TL in such a way that, if the difference between the values of N.sub.R and N.sub.TL is less than or equal to a predetermined threshold, the second processing unit controls the display of N.sub.R and N.sub.TL such that N.sub.R and N.sub.TL are aligned on the display unit.

Abstract: A method for monitoring a rotor speed of an X-ray tube anode drive includes acquiring axial flux pickup data from the rotor, using the axial flux pickup data to provide a flux spectrum, and estimating the rotor speed by analyzing the flux spectrum. The step of acquiring axial flux pickup data can include situating an axial leakage flux pickup coil so as to pick up a flux signal from an X-ray tube anode drive rotor while the rotor rotates. An analog flux signal can be converted to a digital flux signal and a fast Fourier transform can be used to transform the digital flux signal into a flux spectrum. The flux spectrum can be used to estimate a drive frequency and a slip frequency and the speed can be estimated by subtracting the slip frequency from the drive frequency and dividing by the number of pole pairs of the X-ray tube anode drive.

Abstract: A rolling bearing unit has an outer ring member and a rotating speed sensor which is embedded in a synthetic resin block in a cover having a cylindrical portion such that a plurality of protrudents 33 are formed on the outer peripheral face of the synthetic resin block 21 to have its axially inner half portion fitted into the cylindrical portion 19 of the cover 18 in an interference relationship and to have its axially outer half portion fitted into the cylindrical portion 31 of the outer ring member 8 in an interference relationship, thereby preventing the synthetic resin block 21 from being subjected to a large moment load.

Abstract: A rolling bearing unit having a rotating speed detector includes an outer race, an inner race, a cover made of synthetic resin, a sleeve made cylindrically of metal, and a seal ring fitted between the cover and the outer race, in which a first leaking passage exists between a first clearance formed on an engaging surface between the sleeve and the outer race and a third clearance formed between the outer race and the cover, the first and the third clearances being arranged in series to each other, and a second leaking passage exists between the third clearance and a second clearance formed in a contact portion of the sleeve with the cover, the third and the second clearances being arranged in series to each other. The single seal ring is capable of preventing the entrance of muddy water into the cover and the outer race through the first and the second clearance.

Abstract: A support device including a clamping sleeve mountable in a hole and which applies a retaining force to a sensor. A wall of the sleeve bears an elastic means for locking the sleeve in the hole and an elastic means for axially retaining the sensor.

Abstract: A wheel bearing with a speed of rotation detection device, in particular for use on a motor vehicle. A sensor supported on the stationary bearing ring is opposite a pulse ring which is connected with and rotates with the rotating bearing ring. The pulse generating ring is developed as a spherical segment, spherical sector, or spherical zone, wherein the center point of its sphere is arranged at the tilt center point of the bearing. The sensor is concentric to the center point of the sphere and is opposite and spaced from the pulse ring by an air gap. The sensor may be concentric with or eccentric to the axis of rotation of the bearing ring. This develops the pulse generating ring and the sensor such that the change in the air that gap occurs as a result of static or dynamic loads on the bearing has no detrimental effect on the quality of the signal.

Abstract: A sensor unit (110) for use with a vehicle component housing (16) includes an electrical sensor assembly (12) and a sensor shell (14). The sensor assembly (12) has an inner portion (64) with an electrical pickup (20) which is electrically responsive to a condition inside the housing (16). The sensor assembly (12) further has an outer portion (30) with a pair of electrodes (24) for connection in an electrical circuit. The shell (14) has an installed position in which it supports the inner portion (64) of the sensor assembly (12) inside the housing (16) and supports the outer portion (30) of the sensor assembly (12) outside the housing (16). A detent structure (90-94) on the shell (14) snaps into interlocked engagement with the housing (16) upon movement of the shell (14) to the installed position.

Abstract: A cold forged pulsar ring (1) which comprises a ring body (1a) having inner and outer peripheral surfaces. A plurality of circumferentially spaced gear teeth (2) are integrally formed by the use of a cold forging process with one of the inner and outer peripheral surfaces of the ring body (1a) so as to protrude radially of the ring body (1a). Each of the gear teeth (2) is so profiled as to have a substantially trapezoidal shape having a tooth angle (.theta.) not smaller than 5.degree., but not greater than 15.degree.. With this design, not only can a cold forging process be employed to manufacture the pulsar ring (1), but also a required output voltage can be secured from a sensor of the rotation detecting device in which the pulsar ring (1) is operatively employed.

Abstract: A rotor for an ABS wheel speed sensor which is capable of improving the yield of a material and a work effectiveness at assembly. The rotor 1 includes a ring-like rotor body 3 having a number of holes 2 arranged successively at an equal pitch, and an inner ring 4 having a C-shaped cross section and having, at at least one of its axial end portions, a flange section 6 bent and protruding outwardly. The inner ring is fitted in the interior of the rotor body 3. For coupling the inner ring 4 into the rotor body 3, the inner ring 4 is elastically deformed in diameter-reducing directions. In addition, the inner circumferential surface of the inner ring 4 is fitted onto a mating rotary shaft from the flange section side under pressure.

Abstract: In a device for gauging the relative revolving speed of the races (10, 11) of a ball bearing, an impulse ring (12) is integral with the rotating race (10) of the bearing and faces a sensor (13). The sensor is integral with the stationary race (11) and electrically connected to a unit for processing data generated by the sensor. The sensor (13) is integrated in the body of a detachable connector (17) for fitting in a connection seat (15) fixed to the stationary race (11). The connector is provided with quick coupling means (19, 20) for mounting to said connection seat (15).

Abstract: A sensor is provided with a rib that extends from its sensing face. The rib is arcuate to conform to a surface of a rotatable object. The rib can be a continuous arcuate rib attached to the sensing face or two or more disconnected sections that together define an arcuate rib. The arcuate rib is shaped to conform to a surface or effective surface of a rotatable object, such as a gear or other rotatable target.

Abstract: A sensor for detecting the angular velocity of a rotating member. The sensor includes a bobbin having an exterior defining an annular recess and a coil within the recess. The bobbin also has a generally cylindrical aperture and supports a probe and a permanent magnet in the aperture. The housing is secured to the bobbin and the housing and bobbin include tapered inner and outer surfaces, respectively, that are made to form a wedge fit seal between the bobbin and the housing to prevent the introduction of molding material during the overmolding process. The bobbin also includes supports for supporting the lead wires extending between the coil and the terminals.

Abstract: A sensor for determining the rotational speed of a rotating element. The sensor includes a giant magnetoresistive ratio sensing device which is magnetically coupled to the rotating element and includes an output terminal. The sensing device generates an output signal at the output terminal having a frequency corresponding to the rotational speed of the rotating element. A wave-shaping circuit is connected to the output terminal for receiving the output signal and for generating a digital switching signal having a frequency equal to the frequency of the output signal. A frequency divider has an input connected to the wave shaping circuit for receiving the digital switching signal. The frequency divider generates, in response to the digital switching signal, a square wave output having a 50% duty cycle and a frequency equal to the frequency of the digital switching signal divided by a predetermined divisor.

Abstract: A sensor for detecting the angular velocity of a rotating member. The sensor includes a bobbin having an exterior defining an annular recess and a coil within the recess. The bobbin also has a generally cylindrical aperture and supports a probe and a permanent magnet in the aperture. The housing is secured to the bobbin and the housing and bobbin include tapered inner and outer surfaces, respectively, that are made to form a wedge fit seal between the bobbin and the housing to prevent the introduction of molding material during the overmolding process. The bobbin also includes supports for supporting the lead wires extending between the coil and the terminals.

Abstract: The invention relates to a wheel or hub for use on vehicles which incorporate an anti-lock braking system. The hub includes a ferrous hub having an outboard and inboard section. A plurality of equidistantly spaced radially extending grooves are formed in the end face of the inboard section of the hub forming a plurality of radially extending pulse teeth, a sensor detects the rotation of the pulse teeth and provides this information to a logic unit of the ABS system.

Abstract: A rolling-contact bearing has a speed-detecting device which includes a sensor which is fixed to a non-rotating race of the bearing, and an encoder element which is mounted on a subassembly which includes two rotating races. The rolling elements of the bearing are held by two axially spaced cages. The encoder element has an active part and a radial part which supports the active part. The radial part extends between the two cages. The active part of the encoder element has an axial dimension which is greater than the axial distance between the two cages.

Abstract: In accordance with the teachings of the present invention, a wheel speed sensor signal conditioning circuit is provided for conditioning sensor output signals received from a variable reluctance wheel speed sensor. The conditioning circuit includes filtering circuitry and peak detecting circuitry that detects the positive and negative voltage peaks of a sensor output signal irrespective of the sensor output signal crossing a reference voltage level. When the sensor output signal exceeds a predetermined peak to peak voltage level, the peak detecting circuitry limits the amplitude of the output signal and forms a dynamic high pass filter. A comparator circuit is coupled to the peak detecting circuitry and outputs a first signal when the peak detecting circuitry detects a positive voltage peak and outputs a second signal when the peak detecting circuitry detects a negative voltage peak of the sensor output signal.

Abstract: A rotation sensor includes a binary encoded target wheel and a pair of sensors disposed about the target wheel periphery. One of the sensors provides a signal indicative of the passage of regular angular intervals of the target wheel and the other of the sensors provides binary states corresponding to the regular angular intervals.

Abstract: A hub unit has a hub with a nut tightened at an axially inner end which is partly projected from the nut. A tone wheel is secured to the axially inner end of the hub. The tone wheel has an outer cylindrical portion provided around the nut and having magnetic properties changing alteratively in a circumferential direction with a uniform interval. An outer ring is provided, which has an axially inner open end. A cover covers the axially inner open end of the outer ring. The hub unit also has a sensor of a passive type supported by the cover and having a detecting portion facing to the outer periphery of the outer cylindrical portion of the tone wheel.

Abstract: A regulation of the sensitivity with a circuit in which the output signals of an inductive transmitter must be evaluated is performed so that the sensitivity in the event of small transmitter output signal is reduced until no trigger signal is obtained. Then the sensitivity is again increased by one step, and the thusly obtained sensitivity the further evaluations are performed. The method can be used for example in rotary speed sensors which are utilized with the transmission control in motor vehicles.

Abstract: A sensor bracket for mounting an anti-lock braking sensor is welded to an axle with a welding method that causes a portion of a bracket preform to be consumed to form the weld joint. In one preferred embodiment, an outer end of a stem of the bracket is formed of a material that will be made molten by an arc between the bracket and the axle. A fluxing agent is preferably mounted on an extreme end of the stem to initially ignite and clean the area on the axle, and further insure that the other portions of the bracket will become molten. The method preferably includes supplying a current through the bracket preform and bringing the bracket preform towards the axle. The axle is grounded, and as the bracket preform is brought adjacent to the axle, an arc is formed between the two. Outer portions of the bracket preform thus become molten. A fixture for mounting the bracket preform continues to bring the bracket preform towards the axle for a predetermined period of time.

Abstract: The pulse tachometer for measuring the rotation of a rotating element (A) is characterized in that it comprises an inductive proximity sensor (10) placed in the vicinity of this element (A) in order to generate an electric pulse (100) upon each revolution of the element (A), a sender (20) connected to this sensor (10) for receive this electric pulse (100), shaping it and converting it into an optical signal, an optical-fibre link (30) connected to this sender (20) and to a receiver (40) for receiving this optical signal from the sender (20) and routing it to this receiver (40) in order to use it so as to calculate the speed of the rotating element. Application to rotating machines, for example turbine generators.

Abstract: A rotational velocity sensor ring comprising a circular cylindrical body with a radially interior cylindrical surface, a radially exterior cylindrical surface and first and second cylinder ends, a plurality of substantially equally spaced, substantially equal length fingers extending from the first cylinder end, and on each of the fingers, a substantially 180.degree. bend proximate to the first cylinder end, wherein each finger is radially exterior of the circular cylindrical body, wherein each finger has a finger end extending toward a second cylinder end opposite the first cylinder end, wherein each finger is proximate to the radially exterior cylindrical surface and parallel to a cylinder axis of the circular cylindrical body, wherein the fingers comprise a set of teeth of the rotational velocity sensor ring.

Abstract: A rolling bearing unit with rotating speed sensor comprising a stationary outer ring member having an outer ring raceway, a rotatable inner ring member having an inner ring raceway, a plurality of rolling elements rotatably provided between the outer ring raceway and the inner ring raceway, a cylindrical magnetic tone wheel fixed to the inner ring member and, having a cylindrical fixing portion fitted onto the inner ring member, a cylindrical detecting portion provided concentric with the cylindrical fixing portion and formed with rotating cutouts, and a stepped portion provided between the cylindrical fixing portion and the cylindrical detecting portion, and a cover comprising a synthetic resin block and a metal portion to be securely mounted to the outer ring member, and an annular sensor embedded in the synthetic resin block so as to be opposed to the tone wheel, and the cylindrical fixing portion having an inner peripheral face on which a plurality of engagement portions are arranged in a single circle to

Abstract: A rolling bearing unit with rotational speed sensor has a holder releasably engaged with the sensor cover, such that prior to installation, the holder is externally engaged with the cover, with the harness passed out through an opening of the holder and wound around the wrapping tube portion of the holder, so that the long harness does not hang down at the time of shipping and installation of the speed sensing rolling bearing unit, and hence does not interfere with these operations.

Abstract: In a device for detecting the rotational speed of a motor vehicle wheel, a sensor and a sensor bracket. The bracket is mounted on a non-rotating part of the vehicle chassis such as an axle journal. The sensor bracket (1) has a tubular socket for the sensor (13) with a locking clip (3), which can be flipped open around a hinge (4), and a latching element (8, 9), which holds the locking clip (3) in a closed position.