Abstract: A rotational fixed connection has a shaft whose axial end is provided with outer shaft teeth and a hub whose through-bore is provided with inner teeth. The connection is useful between a driveshaft in the driveline of a motor vehicle and a joint hub of a universal tripod joint or a constant velocity universal ball joint. The joints include the hub, torque transmitting roller elements, and an outer joint part. The outer shaft teeth of the shaft, at a distance from the hub teeth end at the shaft shank end, run out steplessly into the shaft shank. The outer shaft teeth end inside the hub with a stepped end. In the region following the outer shaft teeth, the shaft includes a tooth-free end portion. The tooth-free end portion carries or forms fixing elements which axially securingly rest against a hub end face at the end where the shaft terminates.

Abstract: A slidable transmission joint has guides which ensure the cooperation of each arm (6) of a tripod element with associated tracks (7, 8). The guides have different overall sizes in the two circumferential directions. A spherical surface (3A) associated with each arm has an axis (Y--Y) which is parallel to a radius (13) of the male element (1) and perpendicular to the straight line joining the center of the spherical surface (3A) to the center of the layer guide and is offset from this radius in a direction away from the larger guide.

Abstract: Cross member units for universal joints have a cross member (6) with four arms (17). Each two opposing arms define a common longitudinal axis (7). A bearing bush (9), covering the arm (17), is provided per arm (17). In the space between the casing (25) of the bearing bush (9) and the cylindrical running face (19) of the arm (17), rolling contact members (32) are arranged in the form of a rim. Towards the open end (30) of the bearing bush (9), a preseal (44) and main seal (37) are arranged between the arms (17) and the casing (25). To achieve a high running performance and a maintenance-free assembly for storing lubricating grease, the arms (17) include a storage chamber (20) which is open towards its end face (18) and otherwise closed. The chamber is tapered, starting from the end face (18). Furthermore, the main seal (37) is secured to the bearing bush (9) by means of an externally positioned carrier (39) which projects beyond the open end of the bearing bush (9).

Abstract: An outer joint part for a constant velocity universal ball joint, produced from a tubular member formed from a plate metal part and provided with substantially longitudinally extending ball tracks intended for receiving torque transmitting balls, with an axial central portion of the tubular member is reduced in cross-section relative to two axial end regions and is provided with ball tracks, with a substantially radial flange formed on at one axial end of the tubular member, with the center lines of the ball tracks extending in a non-parallel way relative to the axis A of the outer joint part and with the axial end of the tubular member positioned opposite the flange remaining undeformed.

Abstract: A universal joint comprising a first joint member having a rotational axis and a body connected to the first joint member for pivotal movement relative thereto about a pivot axis intersecting and perpendicular to the rotational axis. The body comprises two trunnions extending along a trunnion axis perpendicular to the pivot axis of the body and respective rollers are carried by the trunnions for rotation about the trunnion axis. The universal joint also comprises a second joint member having a rotational axis and affording two tracks extending lengthwise of the second joint member and diametrically opposed to one another about the rotational axis of the second joint member with the rollers being received in the tracks for torque transmission between the joint members by way of the body and rollers.

Abstract: A constant velocity universal ball joint (1) has an outer part (2), an inner part (6) received therein, and a cage (11) arranged between the outer part (2) and inner part (3) to guide balls (17) which serves to transmit torque between the outer part (2) and inner part (6). The balls (17) are guided between parallel window faces (15, 16) of the cage (11). To improve the service life values and the running-in conditions of the joint, balls (17) are used whose surface is ground and have a defined roughness. Thus, in the case of tolerance errors, the window faces (15, 16) are worked off to such an extent as to achieve identical load bearing conditions at the balls.

Abstract: A constant velocity universal joint for large articulation angles, consisting of an outer joint part comprising a cavity and longitudinally extending outer ball running grooves opening towards the cavity; an inner joint part positioned inside the cavity and comprising longitudinally extending inner ball running grooves corresponding to the outer ball running grooves; torque transmitting balls running in outer and inner ball running grooves associated with one another; and a cage which is arranged between the outer joint part and the inner joint part, which is provided with windows for accommodating the balls and which comprises two opposed apertures having generating central axes which extend transversely to the joint axis.

Abstract: The Universal Joint includes a tripod that is to be fixed to the first shaft and a female element that is to be fixed to a second shaft. The tripod has a plurality of arms to engage with the plurality of the tracks of the female element. Two of the tracks are disposed on respective sides of each of the arms of the tripod. Intermediate members are interposed between each one of the arms and the two of the plurality of tracks corresponding thereto. For each one of the arms, the two tracks corresponding thereto include a first track formed of a first slot and a second track. Each one of the arms has a second slot that forms an angle with the first slot of the first track and a first spherical surface. The intermediate members include a first intermediate member that is a ball interacting with the first slot and the second slot, and a second intermediate member interacting with the second track and having a second spherical surface that interacts with the first spherical surface.

Abstract: A coupling for transmitting torque between two parts has a friction or viscous coupling. The friction coupling is loaded by a piston and rotational member. A shear channel is formed between faces such that viscous fluid contained in the chamber is moved along the shear channels wherein the piston is loaded as a result of shear forces.

Abstract: A universal joint comprising outer and inner joint members with circumferentially spaced grooves extending lengthwise of the members; and balls disposed one in each facing pair of grooves in the joint members for torque transmission between the members; wherein at least some of the grooves in one of the joint members are each provided in a groove base portion with a recess extending lengthwise of the groove, and a spring element is disposed in each said recess and arranged to engage the respective ball to bias it radially of the joint and preferably also axially to the central region of the spring element.

Abstract: Disclosed is a lubricating grease suitable for high temperature use, consisting essentially of 60 to 90% by weight of a base oil mixture comprising at least one mineral oil and at least one synthetic oil, 5 to 17% by weight of at least one urea compound as a thickener, wherein the at least one urea compound is a reaction product of at least one fatty amine and at least one isocyanate or at least one diisocyanate, 2 to 20% by weight of calcium complex grease, 1 to 4% by weight of molybdenum disulphide, 0.2 to 1% by weight of graphite powder, 0.2 to 1% by weight of polytetrafluoroethylene powder, 0.2 to 1% by weight of solid particles of at least one organo-molybdenum compound selected from a molybdenum dithiocarbamate and a molybdenum dithiophosphate, up to 2% by weight of a metal deactivator and up to 2% by weight of a corrosion inhibitor.

Abstract: An outer joint part for a constant velocity universal ball joint, produced from a tubular member formed from a plate metal part and provided with substantially longitudinally extending ball tracks intended for receiving torque transmitting balls, with an axial central portion of the tubular member is reduced in cross-section relative to two axial end regions and is provided with ball tracks, with a substantially radial flange formed on at one axial end of the tubular member, with the center lines of the ball tracks extending in a non-parallel way relative to the axis A of the outer joint part and with the axial end of the tubular member positioned opposite the flange remaining undeformed.

Abstract: A coupling disk has a varying damping cross section of the circumferential gaps as a function of the angle of rotation of the first annular part relative to the second annular part. Thus, in the circumferential gaps, as a result of the shearing effect of the damping fluid, variable damping occurs as a function of the quasi-static angle of rotation due to torque and as a function of the periodic angle of oscillation due to rotational oscillations between the first annular part and the second annular part.

Abstract: A constant velocity ratio universal joint of the tripode type includes an outer joint member with three tracks extending lengthwise of the joint member, and an inner joint member having three arms extending outwardly into the tracks of the outer joint member. Each arm carries a respective roller having an external surface which engages opposed side portions of the associated track. Each roller is able to tilt within its associated track and move therealong so that the inner and outer joint members are able to move axially relative to one another and undergo relative articulation.

Abstract: An outer joint part consists of a casing in which the axially extending guiding tracks are fitted in the form of inserts. The casing is provided with axially extending continuous recesses which are open towards the inserts. The unique process for manufacturing the outer joint part consists of positioning the inserts within the recesses and holding them in position by welding or by utilizing a pressing operation on the exterior of the casing while simultaneously positioning the inserts using a supporting core.

Abstract: An intermediate roller element for a universal joint includes a strip (12), one face of which includes at least one longitudinal roller track and balls (20) which roll along the track. The balls are held by a cage (22) produced in the form of a plate (24) which extends in a plane substantially parallel to the overall plane of the track (16), and includes cells in which the balls (20) are received. The cage includes portions (28, 32, 34) joining the cage (22) to the strip in order to form a unitary sub-assembly.

Abstract: An outer joint part is produced by forming in such a way that the torque transmitting capacity is substantially increased and that the production costs, essentially do not rise. This is achieved in that at the outwardly open axial end of the cavity of the outer joint part, there is arranged a radially outwardly directed collar-shaped flange.

Abstract: A constant velocity universal ball joint has an outer joint part, an inner joint part and torque transmitting balls held in a cage. The cage has centers of curvature (M.sub.1, M.sub.2) of the outer spherical face (14, 44) and of an inner spherical face (14, 44) of the ball cage (4, 34) which are axially offset relative to a central cage plane (E), defined by the circumferentially extending center lines (L.sub.m) of the cage windows (12, 42). The center of curvature (M.sub.1) of the outer spherical face (13, 43) is positioned towards the aperture (8, 38) in the outer joint part (2, 32), and the center of curvature (M.sub.2) of the inner spherical face, (14, 44), is positioned towards the end of the outer joint part (2, 32) located axially opposite the aperture (8, 38).

Abstract: A cage for a constant velocity universal joint has an increase in the fracture strength of the cage and thus the torque capacity of the entire constant velocity universal joint. This is achieved in that the apertures for the windows in the cage at the circumferentially extending contact faces do not extend parallel to the central axis but contact a virtual sphere arranged at the point of intersection between the radial center plane of the cage and the joint axis. As a result, the webs of the cage comprise a larger cross-section and in consequence, its fracture strength is improved.

Abstract: A non-rotating and axially secured connection between an inner joint part of a constant velocity joint and a driveshaft has an inner joint part at its outer circumference with tracks for receiving torque-transmitting balls or tripod arms for sliding on rollers, as well as a central bore with inner teeth. The driveshaft is inserted into the bore and is provided with corresponding outer teeth. At the end of the inner joint part facing the shaft end, the bore, with its inner teeth, changes into a through-hole with a smaller diameter. At the end of the driveshaft in front of the outer teeth, a cylindrical portion is provided carrying an axial securing mechanism.