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: A bearing unit with a rotational speed detection unit has a tone wheel which has recesses on its outer peripheral surface and rotates with the magnetic hub and the inner ring, a sensor which has a first stator with notches and a second stator, and a permanent magnet, so that due to the changes in phase of the notches and recesses, the density of the magnetic flux from the permanent magnet is changed, with the magnetic flux led to the second stator and to the hub and inner ring, whereby the number of winding in the coil is increased.

Abstract: A rolling bearing unit has a rotational speed detection device which has a sensor having a yoke, a pair of permanent magnets, a coil, and a tone wheel. The tone wheel is made by press-forming a magnetic metal plate so as to form a cylindrical support base secured onto an end portion of the bearing unit. The tone wheel has a ring-shaped first detecting part which is bent radially outward from the inner rim of the cylindrical support base, and a cylindrical shaped second detecting part which extends axially from the outer peripheral rim of the first detecting part. The first and second detecting parts have a ferro-magnetic first portion and a non-magnetic second portion, and the yoke has opposite ends which are faced to the first and second portions. The permanent magnets have like poles faced toward each other so that magnetic fluxes flow alternately through the yoke corresponding to the rotation of the tone wheel.

Abstract: A rolling bearing unit with a rotating speed sensor comprising a hub having a flange for mounting a vehicle wheel and an inner ring raceway, an outer ring having a mount portion for supporting a suspension apparatus and an outer ring raceway, a plurality of rolling members between the inner ring raceway and the outer ring raceway, a sensor supported by the outer ring, a tone wheel mounted to the hub so as to be faced to the sensor, an annular support frame having a cylindrical mount portion, a flanged portion and a support portion, the cylindrical mount portion fitted onto the outer ring, the flanged portion bent inwards at right angles at an edge of the mount portion and having a side face, the support portion having a circumferential end face and projected from the side face of the flanged portion, and a conductive member projected from the circumferential end face of the support portion to output signals from the sensor, the circumferential end face of the support portion and part of the flanged portion co

Abstract: The bearing unit with speed sensor of this invention comprises a shaft, inner rings or races which have inner ring raceways formed around its outer circumferential surfaces and which are secured around the shaft, a member that serves as an outer ring or race having outer ring raceways formed in its inner circumferential surface, several rolling bodies that are located between the inner ring raceways and outer ring raceways, the shaft is stationary during operation with the member turning, a tone wheel fastened to the member which turns during operation, a sensor which is supported by the shaft to face the tone wheel, a non-rotating member which is connected to the shaft, and an engaging means for securing connecting shaft to the non-rotating member so as to prevent the sensor from turning in use for long periods of time.

Abstract: A rolling bearing unit for sensing rotational speed has a synthetic resin connector to which a plug is connected to output a signal from a senser, and a metal cover lot supporting and protecting the connector.

Abstract: An axle bearing unit comprises an outer ring 23 secured to the end of an axle tube 1, an inner ring 26 supported in a freely rotational manner inside the outer ring 23 with a plurality of balls 9 therebetween, a pulser ring 17 secured to the outer peripheral surface of the inner ring 26, a sensor 19 inserted in a mounting hole 18 of the outer ring 23 with its tip faced to the outer peripheral surface of the pulser ring 17, a pair of first sealing members 29a, 29b provided radially between the outer peripheral surface of the two ends of the inner ring 26 and the inner peripheral surface of the outer ring 23.

Abstract: A speed sensing hub unit comprising an axial shaft extending from a constant velocity joint having a male spline, a cylindrical hub having a first flange on an outer peripheral face thereof for supporting a wheel and a female spline on an inner peripheral face thereof which engages with the male spline, an inner ring fitted onto the axial shaft and having a second inner ring raceway, a first nut which threads onto the axial shaft to clampingly hold the inner ring between itself and the constant velocity joint, which has at least an inner end face formed with a plurality of axial holes or slots-and-ridges, a sensor rotor surrounding the first nut, an outer ring formed with a pair of outer ring raceways corresponding to the first and second inner ring raceways, and a second flange for attachment to a suspension unit, a speed sensor facing to the the sensor rotor; and a plurality of rolling bodies between the first and second inner ring raceways and the pair of outer ring raceways.

Abstract: A hub unit bearing apparatus for a vehicle, adapted to rotatably support a constant velocity joint and a wheel on a vehicle body and to connect them to each other, comprises an outer race attached to a vehicle body, a shaft extending from a constant velocity joint and having a first reduced diameter portion at its free end, a cylindrical hub fitted on the first reduced diameter portion and having one end which is near the constant velocity joint and on which a second reduced diameter portion is formed, an inner race fitted on the second reduced diameter portion and cooperating with the outer race via rolling members to construct a bearing, a first nut threaded on the second reduced diameter portion so as to protrude from an end face of the second reduced diameter portion axially and urging the inner race against a body portion of the hub, and a second nut threaded on the second reduced diameter portion and urging the hub, inner race and first nut against the constant velocity joint.