Abstract: A clutch release, in particular for automobile clutches, comprises a sliding sleeve having a radially outwardly directed flange and an annular groove, a clutch release bearing having an outer ring with a flange that slidably abuts the sliding sleeve flange, and a generally oval-shaped spring ring having a pair of mutually parallel guiding surfaces. The spring ring is arranged between the outer ring and the annular groove at points mutually displaced in the axial direction. The bearing is arranged to rotate relative to the sliding sleeve in the circumferential direction within predetermined limits and to move in a radial direction along the guiding surfaces by overcoming a radially acting frictional force between the slidably abutting flanges. The spring ring has a substantially bow-shaped profile and is slotted. The inner ring of the bearing has a radially outwardly directed pressure flange for abutting with the diaphragm spring of a clutch.

Abstract: A rolling bearing unit with a pair of axially spaced grooves in the shaft, rolling bearing elements in the grooves, sheet metal outer race elements secured in a housing, and an adjusting ring for driving one of the outer race elements axially relative to the housing and to the other race element.

Abstract: Gear for chain drives comprising a gear body of cast material having a hub section, a gear rim section with spur teeth, and a web section joining said hub and gear rim sections, and a ring plate of metal embedded in the web section, the outer edge of said plate being near the bottom of the areas between the spur teeth and having axial openings filled with casting material around its periphery, said ring plate having at its outer radial edge, radially outwardly directed projections, which are located in each case in a tooth, and which are embedded in the casting material of the gear body, said projections extending beyond the bottom of the spaces between adjacent spur teeth, and an axial opening formed in the ring plate adjacent each projection and radially below it.

Abstract: A sliding sleeve for a clutch shifter particularly for automobile clutches comprising an elongated hub body made of a plastic material, a thrust collar which protrudes radially outwardly from the hub body and includes contact surfaces for the shift lever of the clutch and for the shift bearing, at least two lugs secured in the hub body and directed radially inwardly adjacent the bore of the thrust collar, each lug being of generally U-shaped cross section to define a groove for the shift lever extending in an axial direction and a thin plastic layer overlying the side surfaces of the groove receiving the projections of the shift lever in the hub body and the adjacent surfaces of the ends of the lugs directed radially outwardly and running parallel to the contact surfaces.

Abstract: A tension roller with a supporting member, pivoted on a pivot stud against the force of a tension spring, and rotatably supported in a roller sleeve by a bearing. The supporting member has a cylindrical interior space, limited by side walls, containing the tension spring. The side walls have bores for the pivot studs and recesses for formation of the stopping faces, against which the free ends of the tension spring abut in order to limit the angle of rotation of the tension roller. The member is made of synthetic material, using injection molding techniques. In order to produce this supporting member in an economical manner, additional recesses permitting insertion of a forming tool consisting of two halves are provided in the side walls of the member.

Abstract: A clutch release, in particular for an automobile clutch, comprising a sliding sleeve, a clutch release bearing, and a spring ring for enabling self-centering of the bearing. The thrust plate of the sliding sleeve is provided with a plurality of circumferentially distributed flexible projections of L-shaped profile which engage the contact flange of the nonrotating bearing ring such that the nonrotating bearing ring radially slidably abuts the thrust plate. The thrust plate is provided with throughholes arranged underneath the respective projections in order to facilitate the elastic yielding of the projections during the operation of snapping them on the contact flange. The flexible projections fix the axially position of the nonrotating bearing ring while allowing radial play.

Abstract: A rolling bearing unit, in particular a play-adjustable bearing arrangement, comprising a bearing shaft, a housing having a bore, and angular contact ball bearings having outer rings arranged in the housing bore and inner rings arranged on the bearing shaft. The shaft is provided with three annular grooves, a threaded portion, and an axial groove along the threaded portion. A locking ring is arranged in the first annular groove, a first cover is arranged on the shaft and abuts the locking ring, and the inner ring of the first bearing abuts the cover. The adjustment of the bearing play is achieved by adjustably arranging a second cover on the threaded portion of the shaft to abut the inner ring of the other ball bearing. The securing of the second cover against rotation relative to the shaft is achieved by deforming or indenting the boss of the cover to engage the axial groove.

Abstract: An hydraulically actuated clutch release, in particular for automobile clutches, comprising a housing having a cylindrical portion and a flange in which a port for the intake of a pressure medium is incorporated, a cylindrical sleeve, an annular piston having a flange and slidably arranged between the cylindrical sleeve and the cylindrical portion of the housing, thereby forming a pressure medium-admitting chamber, a clutch release bearing having a non-rotating bearing ring, an outer cylindrical sleeve, and a compression ring. The outer cylindrical sleeve comprises two portions of different inner diameter and a bead connecting the portions. One portion fixedly contacts the non-rotating bearing ring and the end face of the annular piston flange, and the other portion covers a portion of the outer sliding surface of the annular piston. The compression spring is arranged between the bead of the outer cylindrical sleeve and the flange of the housing.

Abstract: A wedge assembly particularly adapted for expanding brakes of motor vehicles including a housing and at least a pair of push rods movably supported in the housing and operatively connected to brake shoes of the brake, the push rods having confronting oppositely inclined faces comprising a wedge member having a pair of oppositely inclined wedge faces complementing the inclined faces of the push rods and at least a roller engaging between the inclined faces of said wedge member and push rods, and a cage for guiding said rollers slidingly movable in a longitudinal direction on said expansion wedge member, said cage having two flank portions extending parallel to the transverse direction having two free flank ends reciprocally directed in the transverse direction and provided with guide means for the rollers, each of said rollers having smooth axial end faces blending at their circumferential edge into a rolling face and said guide means being formed by two radial guide sections on each flank end of the roller ca

Abstract: A tension roller for enabling adjustment of the tightness of a driving belt, comprising a solid support and a bearing press-fit thereon. The solid support has an axially extending mounting bore eccentrically arranged therein and a seating surface formed circumferentially thereon. A plurality of balanced bores are circumferentially distributed in the support in order to obtain a uniform radial elasticity at the seating surface. The balance bores may have a diameter equal to or less than the diameter of the mounting bore. In the latter case, the shortest distance between the balance bore surfaces and the seating surface is equal to the shortest distance between the mounting bore surface and the seating surface. The resultant uniformity of the radial elasticity prevents deformation of the bearing.

Abstract: A roller casing for a pulley is comprised of coaxial ring halves mounted one over the other. The diameter of the running surface can be varied without varying the bearing size by employing corrugations in the circumferential direction, or by providing lateral radially outwardly directed rims on the inner ring part. Alternatively the iner ring may be comprised of two ring halves having their central parts directed toward one another.

Abstract: Sealing ring for radial rolling bearings with an outer race and an inner race and rolling bodies in the gap between them, consisting of a ring body of elastic material bridging the gap with, at one radial end, at least one sealing lip or the like sliding along a contact surface of the outer race or inner race and with, at its opposite end, a hub section supported on a seating surface of the inner or outer race and a stiffening plate incorporated into the ring body with a radial web section and, in the hub section, a collar section connected to the outer edge of the web section facing the hub, characterized in that the collar section of the stiffening plate is formed both by axially inward-bent and axially outward-bent tabs of the outer edge of the stiffening plate.

Abstract: A tension roller for a drive belt is comprised of a two-part pin and a roller rotatably supported on the pin by a rolling bearing. One part of the pin is substantially solid and has a seating surface for receiving the inner ring of the rolling bearing. The other part of the pin is cup-shaped and extends over the seating surface to engage a side surface of the inner ring. An eccentric bore is provided in the pin for mounting the tension roller on a machine frame by means of a mounting screw. The eccentric bore, in the solid portion of the pin, extends to and separates the outer surface of the pin, whereby the mounting screw partially engages the inner ring of the bearing. The arrangement permits the maximum range of tension adjustments for the tension roller.

Abstract: In a clutch throwout, particularly for automotive clutches, a self-centering clutch bearing is arranged on or in a sliding sleeve. The stationary bearing ring of the clutch bearing is connected with the sliding sleeve via an intermediate element, which features guides for the radial sliding, in two mutually crossing radial directions, of the clutch bearing in relation to the sliding sleeve.To enable the clutch bearing to slide in any radial direction and to position itself precisely centered in relation to the tongue ends of the clutch diaphragm spring, without great constraining forces, while, regardless of position, damping the relative movements of clutch bearing in relation to sliding sleeve, intermediate element is radially interlocked with the stationary bearing ring and with the sliding sleeve, in two mutually crossing directions.

Abstract: A hub bearing assembly for the wheel of a motor vehicle comprising a wheel flange having means for mounting the wheel of the vehicle thereto and a drive joint including a sleeve member, a roller bearing assembly mounted on the outer periphery of said sleeve member said wheel flange and sleeve member having confronting interengaging means, said flange and sleeve member having internal thread sections, said wheel flange having a central bore with a thread of a pitch differing from the bore thread of the sleeve member of the joint and a threaded bolt with differential thread portions engageable in the aligned bores of the wheel flange and sleeve member of the joint whereby to axially adjust the sleeve member of the joint, the wheel flange, and the bearing arranged therebetween.