Abstract: A tolerance ring made of polymeric material arranged between a radial rolling bearing and a seating on a shaft or in the bore of a housing, wherein the tolerance ring bears against a radially directed surface of the seating on the shaft or housing bore in at least one axial direction and comprises a radially directed surface against which a bearing ring of the rolling bearing bears in the same axial direction with an end face, characterized in that the radially directed surface of the seating and the end face of the bearing ring do not overlap radially which avoids axial overloading.

Abstract: A plastic element with an outer surface defining a running surface, particularly for a belt or chain, arranged at the outer circumference of a metallic insert designed as a rolling or sliding bearing, consisting of a polymeric plastic material hardened after polymerization produced in a mold comprising adding an expanding agent to the polymeric plastic material by mixing, inserting the metallic insert into the mold, filling the mold with polymeric plastic material containing an expanding agent at a low pressure compared to injection molding pressures, allowing the polymeric plastic material to expand by action of the expanding agent to the outer surface of the metallic insert and to the mold to form the running surface and hardening the polymer plastic material.

Abstract: A self-adjusting hydraulic valve tappet arranged in a guide bore of a cylinder head of an internal combustion engine and comprising a cup-shaped housing which surrounds a hollow cylindrical wall which is closed at one end by a bottom against which a control cam bears on the outside, the housing comprising a cylindrical guide sleeve which is concentric with the hollow cylindrical wall and which at its end facing away from the bottom opens into the center of a disc member which at its outer periphery merges into the hollow cylindrical wall of the housing, the actual hydraulic clearance compensation element being guided longitudinally displaceably in the guide sleeve and an annular oil reservoir being defined by the hollow cylindrical wall, the cylindrical guide sleeve, the bottom and the disc member and supplied with oil from the lubricating oil circuit of the internal combustion engine via a bore arranged in the hollow cylindrical wall, the annular oil reservoir being provided with an air vent bore in one of i

Abstract: An axial rolling bearing comprising a cage containing rolling elements and arranged between two plane-parallel, thin-walled bearing discs made of sheet metal, wherein the three components together form a structural unit by engaging together in a form-locking manner and at least one of the bearing discs merges at one of its peripheral edges into an axially directed collar which engages around the cage with clearance and extends into the region of the second bearing disc characterized in that there is a narrow guiding clearance at at least some peripheral points between the mutually facing peripheral surface of the collar and of the second bearing disc respectively.

Abstract: The present invention comprises a spacer, especialy a spacer for use with a thrust roller bearing assembly. An internal radial lip projecting into the central aperture of the spacer provides for frictional retention on a shaft passing therethrough. Where the thrust bearing and spacer combination is to be installed in a bore, one or more external radial lips may be included to frictionally retain the spacer within the bore. The spacer element is adapted for coupling to one of the bearing elements. In one embodiment, the bearing and spacer may be bonded together. In another embodiment, the spacer and bearing are joined by mutually engageable circumferential locking surfaces. The spacer is selected from a plurality of spacers of differing axial dimension, each spacer being color coded according to its axial dimension.

Abstract: A structural element made of a castable or extrudable polymeric material reinforced by fillers, said structural element having a contact surface in sliding engagement with another element, the structural element being provided on its contact surface with a layer, thin in comparison to the structural element's dimensions, of polymeric material free of fillers, the said layer being unitary with the structural element.

Abstract: A radial ball bearing comprising two race rings bent round from sheet strip, in which rings, ball raceways are formed and balls preferably arranged spaced apart in a cage roll, characterized in that in continuation of the ball raceways in both axial directions, the race rings are provided with integrally formed cylindrical prolongations, stiffening rims are formed at least on the outer race ring and the outer race ring has a smaller outer diameter in the region of the ball raceway than in the region of the stiffening rims.

Abstract: A sealed radial rolling bearing, particularly for use as a supporting or curve roller, comprising race rings arranged concentrically in each other with mutually facing raceways between which cylindrical rolling elements roll, a flanged wheel of angular cross-section being provided at least one axial end of the inner ring for the axial guiding of the rolling elements, wherein the axial leg of the flanged wheel is fitted on the outer peripheral surface of the inner ring under radial pre-tension and a part of the outer periphery of the flanged wheel forms a counter-surface for a seal arranged on the outer ring, characterized in that the inner ring has a smooth cylindrical periphery surface and the radial leg of the flanged wheel bears against the front face of the inner ring.

Abstract: A sliding sleeve made of polymeric material for clutch release bearings comprising a hollow cylindrical hub element (1) provided with a radially outwardly directed ring collar (3) on its outer surface, a ring-shaped metal flange (4) abutting against the surface of the collar (3) facing the clutch forming a stop surface 5 for a radially adjustable raceway of a roller bearing, characterized in that the metal flange (4) has at least one axially directed collar (6,9) extending over at least part of its inner and/or outer circumference surface, the collar resting on the outer surface (2,10) of the hub element (1) and/or the ring collar (3) under radial prestress.

Abstract: An overrunning clutch comprising clamping rings arranged concentrially in each other with mutually facing clamping paths between which clamping elements are arranged and a switching member arranged equiaxially with one of the clamping rings which is designed to have a variable diameter, acting on this clamping ring by utilizing a wedge-surface effect so that a rotation of the switching member relative to the clamping ring with variable diameter causes a change in the distance between the clamping paths, characterized in that the clamping ring with variable diameter is divided by at least one axial slit and pre-tensioned by at least one spring to oppose the change in distance between the clamping paths which can be effected by the switching member.

Abstract: A thin, metallic sensor ring for rotational sensing systems wherein protrusions formed on the periphery of the ring are constructed so as to interrupt an electromagnetic flux emitted by a sensing device mounted in fixed relation to the ring, whereby rotation of the ring may be detected. The protrusions are formed without removing any metal from the ring, preferably by a stamping or drawing operation. Slits may be provided in the ring to facilitate the formation of the protrusions. The ring may be partially encapsulated in a plastic mounting adapter to facilitate mounting thereof on a rotating shaft or hub.

Abstract: A rolling bearing cage having a through slit at one point of its periphery, characterized in that at least one projection extends from one of the cage ends defining the slit and engages in recesses at the other cage end so that the two cage ends are fixed relative to each other in both radial directions as well as in both axial directions but are able to move relative to each other in the peripheral direction.

Abstract: A cage made of polymeric material for a rolling bearing for longitudinal movements comprising two longish, parallel cage plates disposed at a distance from each other and containing pockets arranged crosswise to their longitudinal extension for the reception of cylindrical rolling elements, the cage plates being joined to each other by at least one first crossbar made in one piece with the cage plates, and extending over a part of the length of the cage plates the thickness of the crossbar being less than the thickness of the cage plates and the crossbar acts as a so-called film hinge to permit the cage plates to be brought into different inclined positions relative to each other, characterized in that at least one other crossbar is arranged along another partial length of the cage plates and has a roof-like, curved or similar shape so that its neutral axis between the two cage plates is longer than the neutral axis of the first-mentioned crossbar, and the cage has a stable shape.

Abstract: A device for determining the torque transmitted in a shaft, which device comprises two pick-ups arranged at an axial distance from each other on the shaft, with which sensors are contactlessly associated, characterized in that each pick-up is arranged in the immediate vicinity of an end face of a radial shaft bearing.

Abstract: A clutch actuating device in which an actuating piston coupled via actuating members with a clutch release bearing and, at an axial distance to this, a compensating piston are longitudinally displaceably guided in a hollow cylindrical housing, which pistons are held at a distance by a pressure spring and together with a section of the cylinder wall of the housing delimit an actuating oil chamber connected to an external oil reservoir, characterized in that the compensating piston with its side opposed to the actuating piston delimits a compensating oil chamber formed by the bore wall and the housing bottom, the actuating oil chamber and the compensating oil chamber being connected by an oil passage which is regulated both as a function of the distance between the pistons and of the operational state, the actuating oil chamber being connected with a pressure oil source and the actuating piston and the compensating piston being additonally coupled with each other in the axial direction by connecting means which

Abstract: An overrunning clutch comprising a clamping ring provided with clamping ramps and spring-loaded clamping rollers housed in pockets of a cage and associated with the clamping ramps, the clutch being switchable from a first indexing position into a second by rotation of the cage with respect to the clamping ring. The cage is characterized by either directly or with the help of an intermediate member on the one hand, and the clamping ring with projections and recesses on the other, engage in each other in such a way after the fashion of a screw thread that when the cage or the intermediate member, as the case may be, is axially displaced, the cage executes a movement of rotation with respect to the clamping ring.

Abstract: A unitary, axially self-locating needle bearing which may be of the drawn shell type has an inner race having a crimped flange projecting radially outwardly from the inner race, an outer race having a flange projecting radially inwardly at either end of the outer race, and a plurality of needle rollers held in a cage contained between the drawn inner race and the drawn outer race. The flange on the inner race axially locates the inner race with respect to the outer race. The crimp forms a radially outwardly projecting flange on the inner race positioned between one end of the caged needle rollers and one of the inwardly projecting flanges of the outer race. The other inwardly projecting flange of the outer race is positioned at the other end of the caged needle rollers.

Abstract: A hydraulic actuating element particularly for a belt tightener having a pressure chamber arranged behind a piston guided in a cylinder, a reservoir separated from the pressure chamber by a check valve, the cylinder and the reservoir being completely oil filled, the outside of the reservoir being defined by a bellows, a leakage gap between the piston and the cylinder being open towards the reservoir and at its one side towards the pressure chamber, whereby a compression spring acts to urge apart the piston and cylinder, characterized in that the reservoir (13) surrounds the cylinder (2) and being limited by the bellows (12) at its outside, the bellows (12) being sealingly secured at one end to a base element (10) secured to the cylinder (2) and at its other end to a base element (11) secured to the piston (1), and that the leakage gap (3) at its other side (17) is externally shielded by the bellows (12) and open to the reservoir (13).

Abstract: A radial rolling bearing comprising an outer race ring in whose bore a set of cylindrical rolling elements is arranged, the rolling elements being retained from falling out inwards by an elastic retaining element inserted into the bore of the bearing and stop flanges being provided at both front faces of the rolling elements for their axial fixing, characterized in that at least one of the stop flanges is formed by a detached flanged disc which is retained in its position by an elastic retaining element.

Abstract: A radial rolling bearing with an outer race ring having at least one radial flange which engages in a peripheral groove of a cage in which rolling elements arranged in pockets are lodged, characterized in that the radial flange delimits an opening through which the cage, radially offset with regard to the bearing axis, can be inserted axially into the race ring by parallel displacement.