Abstract: A self-adjusting hydraulic valve tappet arranged in a bore of a cylindrical guide bore of a cylinder head of an internal combustion engine and being contacted at one end face by a cam of a shaft and bearing with a second end face against a valve stem, the tappet comprising a cup shaped housing comprised of a hollow cylindrical wall (2) closed at one end by an end member (3) against the outside of which the cam abuts and a cylindrical guide sleeve (6,30,32) concentric with the cylindrical wall (2) and arranged in the center of an annular flange element (5) which at its outer circumference merges into the cylindrical wall (2) of the housing and defines an annular oil reservoir (14) between the cylindrical wall (2) and the cylindrical guide sleeve (6,30,32), the oil reservoir (14) being supplied with oil through a bore (15) leading to the outside of the housing, a self-adjusting hydraulic play compensation element (13) being guided for longitudinal movement in the guide sleeve (6,30,32) and bearing with an end f

Abstract: Radial rolling bearing with adjustable clearance comprising two concentric races whose outer facing surface areas are provided with a groove, the grooves defining the raceway for the rolling elements, a slot is provided in the area of the center plane of the rolling bearing extending radially from the bottom of one of the grooves over only a portion of the race depth so that the slotted race has a partial raceway at both sides of the slot wherein the slot width is changeable by means acting on the race and causing a deformation of the race, characterized in that at least one partial track (6) is defined by a race wire (7) which is provided with rounded back (8) at the one side facing the race (1) and is swingably mounted relative to the race (1) in a circumferential groove (9) of the latter.

Abstract: A method of assembling a universal joint comprising two shafts provided with yokes at their ends and connected by means of a universal joint spider having journals supported in bores in the yokes by bearing cups which are unilaterally closed by a bottom wherein the end faces of the journals abut against the bottoms of the bearing cups, comprising initially centering the universal joint spider and the shafts relative to each other and stationarily clamped, then pressing the bearing cups in the bores in the yokes and axially fixed therein wherein the yoke arms, if necessary, are widened radially outwardly and are always immovably fixed radially inwardly, characterized in that the axial position for each bearing cup (6) in the respective bore (3) of the yoke (5) in which the bottom (9) of the bearing cup (6) abuts against the end face (34) of the respective journal (1) is measured or determined and the pressing process of the bearing cup (6) in this position is either terminated or based on this position, the pr

Abstract: An apparatus for height adjustment of a rolling bearing for longitudinal movement comprising a support body having two straight parallel race sections connected at their ends by two semicircular race sections, said support body being encircled by a guide element for guiding and/or holding rolling bodies in the race sections, the rolling bearing being supported by two adjusting wedges moveable relative to each other whose wedge surfaces are inclined opposite to each other in the longitudinal direction of the race, characterized in that the support body extends beyond the guide element transverse to the longitudinal race direction and the adjusting wedges having through recesses engaging the guide element and the zones of the support body extending beyond the guide elements being supported by lateral faces of the adjusting wedges delimiting the recesses.

Abstract: A tubular article of polymeric material which has two coaxial tubular sections extending in opposite axial directions and an intermediate section integral with the tubular sections. One of the tubular sections snugly surrounds a metallic sleeve which is positively fitted in the one tubular section and has a keyway for the external key of a drive shaft, and the one tubular section has axially parallel external ribs which reinforce its resistance to deformation and potential separation of its internal surface from the sleeve. If the outer diameter of the one tubular section matches or approximates that of the other tubular section, the intermediate section and the one tubular section are provided with external ring-shaped collars which are integral with and reinforce the ribs.

Abstract: A clutch release means for motor vehicles consisting of a housing holding a rolling bearing, said housing being axially moveable on a guide concentric with the clutch axis under the action of a pivoted clutch fork characterized in that the housing (1) has curvatures (7) at the contact points with clutch fork (3) which are turned toward the latter and whose vertices lie in a plane passing through clutch axis (8) and the contact surfaces (9) of clutch fork (3) have a flat form.

Abstract: A novel cage for an overrunning roller clutch the cage being made of polymeric material and having two end rings connected by crossbars for forming a plurality of pockets for cam rollers, the crossbars being provided with integrally molded leaf shaped spring elements acting on the cam rollers, each crossbar having on its outer diameter at least one spring element which in its initial state extends essentially in a plane containing the cage axis and which is bent essentially radially inwardly when the cam roller is inserted in the respective pocket.

Abstract: An elastic annular seal for use in an antifriction bearing wherein a portion of the inner race extends axially beyond the adjacent end face of the outer race and the races define an annular gap extending axially toward the chamber for the rolling elements of the bearing. The seal has a disc-shaped supporting portion which is anchored in a groove of the portion of the inner race, a sleeve which extends from the supporting portion axially toward and into the gap and bears against the inner race, a first lip which extends from the supporting portion and one axial end of the sleeve externally of the gap and sealingly and slidingly engages the end face of the outer race, and a second lip which is integral with the other axial end of the sleeve and slopes in the gap radially outwardly toward and into sealing and sliding engagement with the outer race.

Abstract: An inner race for a swashplate mechanism comprising an inner race having on its outer surface a ball groove extending at an angle to its longitudinal axis, and an outer race surrounding the inner race and having a ball groove formed in its bore, and a ring of balls rolling in the grooves of the two races characterized in that the inner race is formed as a tubular sheet-metal element with a ball groove formed therein without metal removal and having a hub bush in its bore to receive a shaft.

Abstract: A polymeric component (1) having a bore (2) to receive a shaft (3), the component (1) having, in the zone (4) around the bore (2), substantially plane and parallel end faces disposed perpendicular to the bore axis, the component being clamped between substantially radial abutment surfaces (5,6) of the shaft (3), characterized in that a number of axially continuous metal pins (7) distributed over the periphery are disposed in the zone (4) around the bore (2) and bear by their ends on the abutment surfaces (5,6) and a method of producing the same.

Abstract: A rolling bearing for use with a screwthreaded spindle comprising a relatively thick-walled outer race ring and an inner race ring, rolling members rolling between the two rings, rings of rolling members rolling between the two end faces of the outer race ring and end plates disposed at a distance from the latter faces and connected to the spindle, the end plates being adjustably mounted on the spindle whereby their relative preloading can be adjusted, characterized in that the two end plates have in their bores an internal screwthread corresponding to the screwthread of the spindle and therefore themselves serve for securing and axially adjusting the bearing on the spindle .

Abstract: A rolling bearing arrangement for a cone crusher comprising a vertical drive shaft arranged within a housing and in alignment with a conical crusher jacket, the upper end of the drive shaft being slightly inclined to the axis of the crusher jacket and having a crusher cone mounted on said upper end, the crusher cone being supported by at least one radial rolling bearing and by a first thrust rolling bearing arranged at the lower end of the crusher cone, characterized by a second thrust rolling bearing arranged above the radial rolling bearing between the drive shaft and spring-elastic means (12) are provided which take support on the one hand on the shaft (2) and, on the other, on the end face of the thrust rolling bearing (11) away from the thrust rolling bearing (10) and in so doing brace these two thrust rolling bearings against one another.

Abstract: A mounting of a shaft in the bore of a housing by two antifriction bearings mounted in a sleeve at a distance from each other, the said sleeve being arranged in the bore of a housing having a higher coefficient of thermal expansion than the mounting elements and being provided with a radially outwardly directed flange, the flange being pressed by elastic spring means against a contact surface of the housing traversed by the bore whereby frictional engagement exists between the said surface and the flange characterized in that the sleeve and housing are axially braced with the elastic spring means preferably yielding axially and abutting a housing surface plane parallel to the contact surface and radially supporting the sleeve in relation to the housing, and a method of assembling the said mounting.

Abstract: A seal assembly for sealing between two elements, at least one of the elements having a cylindrical surface supporting a seal made of an elastic material provided with a sealing lip bearing against the second element, the improvement comprising that the seal consists of a hollow-cylindrical body from which a sealing lip projects from at least one face and the body bears against the cylindrical surface of the one element and is encircled by an elastic band of polymeric material to hold the body in place.

Abstract: An improved method of machining the raceway of a roller bearing race for cylindrical rollers having two concentric cylindrical surfaces with one surface being the raceway and the other cylindrical surface being the seating surface of the roller bearing race comprising elastically compressing the seating surface to assume an exactly cylindrical shape, shaping the raceway surface by chip removal into an exactly cylindrical form concentric with the seating surface and removing the compression pressure and novel apparatus for carrying out the method.

Abstract: In a race wire bearing comprising two undivided, concentrically disposed race rings having race wires which are disposed in facing grooves and on which rolling members roll, the first race ring having two race wires, a carrying or support wire receiving the main axial load and a retaining wire receiving only the disengaging tilting moment, and being formed at a place on its periphery with a filling orifice closed by a plug, the improvement comprising the filling orifice (7,16) being disposed as to interrupt only one race wire, the interrupted race wire being a retaining wire (6,18) and the plug (3) having a raceway (8) which replaces the retaining wire (6,18) missing at the filling orifice.

Abstract: A seal for a rolling bearing rotary joint consisting of two race rings disposed concentrically inside one another and between which rolling members roll, one race ring projecting axially beyond the other race ring and carrying an elastic gasket in this part projecting beyond the other race ring, the gasket being disposed in a peripheral groove which is open towards the other race ring and bearing slidingly against the other race ring, characterized in that the elastic gasket (7) has an axial sealing lip (8) bearing against the end face (9) of the other race ring (1) which has an axially outwardly extending peripheral collar (11) between the point of contact of said sealing lip and its surface facing the one race ring (2), against which peripheral collar (11) there bears a second radially acting sealing lip (10) of the elastic gasket (7).

Abstract: A rolling bearing for longitudinal movements of limited slide path for guiding a rectangular cross-section bar comprising an outer element, an inner element and rows of balls rolling between said elements, the outer element on whose bore wall the balls roll being insertable into a cylindrical housing bore and the inner element, being provided with straight, axially extending inner ball races and at least partially surrounding the rectangular cross-section bar, bears against the bar by the back of its ball races, characterized in that the outer element is formed as a cylindrical tube section and the inner element is connected to the bar to form a structural unit so that it is retained on the bar in its position required for operation and a cage retaining the balls at the inner element is provided which cage forms a structural unit with the inner element.

Abstract: A rolling bearing arrangement for guidance of a gun barrel during longitudinal displacement comprising a gun barrel having at least three circumferential axis-parallel strips projecting radially outward, each strip having two bearing surfaces parallel to each other and to a radial plane, which in turn are associated with directly opposite bearing surfaces extending parallel thereto in a housing surrounding the gun barrel, and a flat cage containing a set of cylindrical rollers arranged between the directly opposite bearing surfaces, the two sets of rollers cooperating with a common strip being under tension by the arrangement, displaceable in a parallel manner, by at least one element carrying a bearing surface.

Abstract: Novel recirculating rolling bearings for the longitudinally moveable mounting of an element with a linear surface comprising a bearing body having two opposite straight race sections limited by lateral flanges connected by two curved end deflecting sections connecting the ends of the straight sections to form a closed raceway and rolling bodies in said closed raceway rotating about an axis, the bearing body having a cylindrical outer contour and is insertable into a corresponding cylindrical bore of a housing which bore is open toward the element to be supported in the area of one straight race section opposite said element, the common axis of the bearing body and the housing bore having a slight inclination relative to the straight race section opposite the element to be supported.