Abstract: An arrangement for protecting a substrate against corrosion, including a substrate, in particular a metallic substrate, and an electrically conductive corrosion protection layer applied to the substrate to protect the substrate against corrosion, which layer has a zinc-containing layer which has been applied to the substrate and has a passivation layer which has been applied to the zinc-containing layer for passivating the zinc-containing layer and contains many particles of hard material which have such a nature that the particles of hard material increase the coefficient of friction on a free surface of the passivation layer compared to a conversion layer without particles of hard material but leave the electrical conductivity of the passivation layer essentially unchanged. The invention further relates to a process for producing such an arrangement and a pulley.

Abstract: The invention relates to a camshaft adjuster for an internal combustion engine. In camshaft adjusters, spring elements which influence the moment conditions for the positional definition and influencing of the camshaft adjuster are usually arranged so as to lie on the inside of the housing. According to the invention, a spring element (29) is arranged outside the housing (4) in a camshaft adjuster (1), a spring base point of the spring element (29) being supported via a pin (21) which penetrates the housing (4) and is connected fixedly in terms of rotation to a rotor (6).

Abstract: The invention relates to a bearing unit comprising a hub provided with a wheel-sided securing flange, whereon an angular contact anti-friction bearing is arranged. In order to produce the bearing unit and to operate it in an economical manner, and also to prevent, for example, deformation and tensions characteristic of known roller riveting units, the securing flange is connected in a material fit to the flange ring in relation to the end of the hub, which clamps at least the inner ring to the hub. The invention also relates to a method for producing a bearing unit, preferably, a wheel bearing unit for a motor vehicle, comprising a hub which is provided with a wheel-sided securing flange whereon an angular contact anti-friction bearing comprising at least one inner ring and an outer ring, is arranged, by means of a device which exerts a clamping force on the bearing unit.

Abstract: The invention relates to a connection of a suspension strut to a wheel carrier of a motor vehicle, wherein the wheel carrier is provided with a fixture for the releasable connection of a lower end of the suspension strut, and wherein the lower end of the suspension strut is mounted coaxially in the fixture. In order to improve this suspension strut connection, it is provided that the wheel carrier is a sheet-metal formed part on which the fixture of the suspension strut is integrally formed as a single piece, wherein retaining means which can be connected releasably to retaining means of the suspension strut are integrally formed on the fixture.

Abstract: A switchable drive pulley system that allows driving engagement or disengagement of a pulley from the shaft of an accessory drive is provided. The pulley is mounted to the shaft by a bearing having an inner ring that rotates with the shaft and an outer ring that rotates with the pulley. A friction disk is arranged adjacent to the bearing inner ring and outer ring. When axial pressure is applied to the friction disk, relative motion between the inner and outer bearing rings is stopped, allowing the transfer of torque from the pulley to the shaft in order to drive the accessory drive, with the pulley and shaft rotating at the same speed. When pressure is removed from the friction disk, the pulley and the outer bearing ring can spin independently of the inner ring and shaft. The shaft can therefore remain stationery while the pulley continues to turn driven by the accessory belt drive.

Abstract: A round table bearing, which has a radial, axial roller bearing for mounting a first bearing ring part relative to a second bearing ring part, and a squeeze-film damper which is connected parallel to the radial, axial bearing. The squeeze-film damper has a basic damper component which is coaxial to the bearing ring parts and which is fastened, together with a rolling element of the bearing ring part which contacts the radial, axial roller bearing, to a rotary table base part.

Abstract: The invention relates to an anti-friction bearing (1) having a brake device, in particular a revolving joint, consisting of a bearing outer ring (2) and a bearing inner ring (3) between which anti-friction elements roll on associated raceways, wherein a braking effect by means of frictional engagement is achieved by pressing a displaceable brake element, which is connected to one of the bearing rings (3, 2) and has a brake lining (15), against a opposing surface (23), which is connected to the other bearing ring (2, 3). According to the invention, the opposing surface (23) is provided with a friction-increasing coating (24) which consists of a base material (25) and at least one incorporated additional material (26).

Abstract: A process for producing a graphite cage for an anti-friction bearing, which cage holds a plurality of anti-friction elements, characterized in that a cage injection moulding is injected in an injection moulding process from a mass comprising carbon mesophase powder, and this cage injection moulding is subsequently heat-treated in order to transform the carbon from the mesophase into pure graphite.

Abstract: A shaft-hub connection (10) between a belt pulley (14) and a shaft (16), in particular, between a belt pulley and the generator shaft of a belt-driven starter generator, wherein the belt pulley (14) has a decoupler shaft (12) and the generator shaft (16) has a coaxial thread (20) that is connected to the decoupler shaft (12) for transmitting torque. The connection between the decoupler shaft (12) and the thread (20) of the generator shaft (16) is secured against loosening. In addition, a belt-driven starter generator with such a shaft-hub connection is provided.

Abstract: The invention relates to a method for the production of a drop-forged balancing shaft for a mass balancing gear of an internal combustion engine. The balancing shaft has an unbalanced plane formed by the rotational axis thereof and an eccentric mass center of gravity, and at least one bearing journal, the outer lateral surface of which serves as a track for a rolling bearing supporting the balancing shaft in the internal combustion engine. To this end, the balancing shaft is to be forged in a forging die having a parting plane extending in the direction of the rotational axis and rotated in relation to the unbalanced plane.

Abstract: Example aspects of the present invention broadly comprise at least two concentric rings with complementary ramped surfaces, at least one of the rings being rotatable relative to another one of the rings so that contact is made at the ramped surfaces. The complementary ramped surfaces form respective circumferences of the rings. At least one of the ramped surfaces may have a sinusoidal profile, or a profile forming at least one of a straight line, concave, or convex. In some example embodiments of the invention, a first one of the rings is a coupling member and a second one of the rings is a tubular slipper with a friction surface radially opposite of the ramped surface. The tubular slipper is arranged to radially expand or contract upon contacting the coupling member.

Abstract: Example aspects of the present invention comprise two concentric rings, the rings movable relative to each other and defining a clearance between them for receiving at least one ball. The first ring is a coupling member, the second ring is a tubular slipper with a friction surface on the far side of the clearance, and the ball contacts the coupling member to the tubular slipper. At least one ring has a first recess with side walls for receiving the least one ball, and the friction surface is configured to displace in a radial direction when the at least one ball is axially aligned with the first recess and forced to run up the side walls by rotating the rings relative to one another. In an example embodiment of the invention, the first recess is a calotte.

Abstract: A camshaft adjuster which has an improved configuration of the pressure chambers and of the adjoining pressure chamber surfaces is provided, that is attached at the end side to a camshaft (2), coaxially about a camshaft axis (3), and which acts as a transmission element to a drive wheel (4) for rotationally driving the camshaft (2), having an inner wheel (5) which is arranged so as to be rotationally fixed with respect to the camshaft (2) and having an outer wheel (6) which is arranged so as to be rotatable, and coaxial, with respect to the inner wheel (5). At least one inner wheel vane (7) is arranged on the inner wheel (5) and at least one outer wheel vane (8) is arranged on the outer wheel (6), between which inner wheel vane(s) (7) and outer wheel vane(s) (8) are formed pressure chambers (9, 9a).

Abstract: Connecting element (10) retains cam follower (2), which actuates gas-exchange valve (4) of an internal combustion engine, on support element (6). Support element (6) has spherical end (7) on cylindrical section (22) and on which cam follower (2) is mounted, so as to be pivotably movable in the direction of gas-exchange valve (4) about center of rotation (9). Connecting element (10) has elastically deformable projections (21), which proceed from central webs (19), parallel to the pivot axis of cam follower (2) such that connecting element (10) is connected to cylindrical section (22) in a frictionally-engaging manner. Projections (21) are embodied as lugs (20) which angle away from central webs (19) and extend in a direction pointing away from cam follower (2), so that projections (21) are elastic in shape.

Abstract: Proposed is a cam follower (1) for a valve drive of an internal combustion engine, having a roller (3), which is rotatably mounted on a journal (2), as a cam thrust face, which journal (2) runs with its outer casing (4) in a respective bore (5, 6) of a first and second guide wall (7, 8) of the cam follower (1), between which guide walls (7, 8) the roller (3) is held, which outer casing (4) is composed of a first and a second section (9, 10), which first section (9) intrinsically has a greater diameter than the second section (10), wherein the journal (2) has an axial travel limitation in one direction by means of its collar (11) which is situated between the sections (9, 10), and in the other direction by means of a radially projecting element such as a securing ring (12), which collar (11) and which securing ring (12) abut against one of the guide walls (7, 8).

Abstract: A method for adjusting the rotational angle position of the camshaft (3) of a reciprocating piston internal combustion engine relative to the crankshaft (5) is provided. The crankshaft (5) is drivingly connected to the camshaft (3) via an adjusting drive (1), which is embodied as a triple-shaft gear mechanism, having a crankshaft-fixed drive shaft, a camshaft-fixed output shaft, and an adjustment shaft drivingly connected to an electric motor (4). A stop element is connected to the drive shaft and a counter-stop element is connected to the camshaft (3). The crankshaft rotational angle measuring signal and a position signal for the rotational angle of the adjusting shaft are detected during the starting step of the internal combustion engine.

Abstract: The invention relates to a roller bearing for linear movements, said roller bearing comprising a guiding carriage which is essentially C-shaped in the cross-section thereof, is displaceably guided on a guiding rail in the longitudinal direction thereof, and comprises two lateral limbs. The carrier body of the roller bearing is supported in the region of each lateral limb in such a way that it can be displaced on the guiding rail by means of at least one series of rolling bodies. The series of rolling bodies respectively comprises a load-transmitting row of rolling bodies, which engages with a load-carrying running path of the carrier body and a load-carrying running path of the guiding rail, in addition to an inverted row of rolling bodies and two defecting rows of rolling bodies. In order to form the load-carrying running path of the carrier body, a running path element is provided parallel to the longitudinal direction of the guiding rail.

Abstract: A camshaft adjuster (1) for an internal combustion engine is provided, wherein the relative angle between a drive wheel (2) and an inner rotor associated with a camshaft can be adjusted via hydraulic loading of pressure spaces (9, 10) between an outer rotor (3) and the inner rotor (6), wherein the drive wheel (2) is made of plastic and the outer rotor (3) associated with the drive wheel (2) is made of metal. Particularly good linkage can be obtained and mounting complexity can be reduced by having at least one bearing surface between the outer rotor (3) and the inner rotor (6) that is connected with a firmly bonded material or positive fit in the drive wheel that is made from plastic.

Abstract: An adjustment device (1) for adjusting the relative rotational angle position of a camshaft (2) in relation to a crankshaft of an internal combustion engine is provided, with the device having an adjustment mechanism (3), which is embodied as a triple-shaft transmission and provided with an input part (4) fixed to the crankshaft, an output part fixed to the camshaft, and an adjusting shaft (7) connected to an adjusting motor shaft (5) of an adjusting motor (6). The motor (6) is provided as an electric motor and is arranged parallel to the camshaft (2). The motor generates an adjustment torque that is transmitted to the adjustment shaft (7) via a secondary drive (18) that has a belt drive, a chain drive, a cardan drive, or an additional spur gear stage.

Abstract: A device (1) for measuring reaction moments and forces on a lever (2) with at least one receptacle (9) for the lever (2) and with at least one carrier (42), wherein the receptacle (9) is fixed on the carrier (42) in opposite measurement directions deflectable relative to the carrier (42), and the device (1) is further provided with at least one fixed, supported sensor (50) for measuring deflections of the lever (2).