Abstract: A collar, made from plastically deformed material, of a hub. The collar holds at least one inner ring of a wheel bearing unit on the hub in an axially fixed manner. Also, end-side teeth, are formed in the collar for engaging in a mating toothing.

Abstract: An antifriction hearing race, particularly for highly stressed antifriction bearings in aircraft power units, which have a fixed joining of two layers made of different metallic materials, with an area of the raceways for the roller bodies being made of a steel with a very high degree of hardness and resistance to wear, and the core area of the antifriction bearing race being made of a high-strength steel. A powder-metallurgical high-speed steel has a high content of carbide-forming alloying elements and a high carbon content is provided as the material for the raceway of the roller bodies, whereas the material for the core area of the antifriction bearing race is made of a hot-work steel with, in comparison to the raceway material, a lower content of carbide-forming alloying elements and with a low carbon content, both materials being joined to one another with material fit by diffusion welding.

Abstract: The invention relates to a method and a computer programme for detecting the stationary state of a roller bearing, comprising z rolling bodies, where z is a whole number, preferably an even number, to which a sensor arrangement is fixed, delivering a sinusoidal signal, dependent on the rotational position of the bearing on the rotation of the roller bearing. Said sinusoidal signal is sampled, whereupon sampled values are determined. According to the invention, a first average value (MW1) of the sampled values of a first time interval (J1) is determined (S120), whereupon the corresponding average value (MW2, MW3) of other time intervals (J2, J3) is determined (S132).

Abstract: A sprag for a sprag-type freewheel clutch having a profile comprised of multiple profile sections, the sprag having at least the profile sections of an inner engagement curve, an outer engagement curve and a first and a second lateral curve, wherein the outer and inner engagement curves each form a component of a logarithmic spiral.

Abstract: A combination of an annular spacer, and a thrust washer in the opening of the spacer. The spacer and the thrust washer being connected by sacrificial tabs dimensioned to be stronger toward one of the spacer and thrust washer so that upon breaking of the sacrificial tabs, the tab remnants will stay with the one of the spacer and the washer to which it was more strongly attached. A trunnion on a spider of a universal joint and the trunnion is to be connected to a yoke arm. The trunnion being received in a trunnion cup. The spacer and the thrust washer combination being toward the bottom of the cup. An array of needle bearings around the periphery of the trunnion inside the cup. An annular seal in the cup sealing around the installed trunnion.

Abstract: The rotating anode x-ray tube has a composite outer bearing made from two rings of a high hot-hardness material and a spacer between the two rings made of a constant coefficient of thermal expansion material. The spacer is welded to the two rings providing the composite outer bearing. One inner bearing race is formed from the shaft and the other inner bearing race is a one-piece inner race mounted on the shaft while the two rings have the corresponding outer races.

Abstract: A universal joint having a spider provided with four staggered journals. A socket having an axial bearing in addition to a radial bearing is associated with each journal. The axial bearing has rolling bodies that are guided between a front surface of the journal and the bottom of the universal joint socket.

Abstract: A drive device, which has a drive shaft mounted in such a way as to rotate about an axis, two driving cranks which are connected to the drive shaft in an angularly rigid manner in relation to the axis in the peripheral direction, and an output element which is connected to the drive shaft and transmits torque between the drive shaft and a load element. To enable the measurement of the torque transmitted by the shaft as easily and economically as possible, the drive device has at least one magnetostrictive sensor which is connected to the drive shaft in a fixed manner and axially arranged between a driving crank and the output element.

Abstract: A radial needle bearing unit for supporting a shaft, which has an outer sleeve with at least one radially inwardly directed rim and a cage guiding hearing needles. For sealing purposes, a sealing element is disposed in an annular space delimited by the rim and the cage. The sealing element is an outwardly expanding sealing ring made of a polymer material resting radially outwardly against the inner lateral surface of the outer sleeve and radially inwardly against the lateral surface of the shaft so that a radial/radial seal is formed. The outer sleeve has, at least in one peripheral location, a holding lug which is formed by stamping or cutting and protrudes the lateral surface of the outer sleeve in a spring-loaded manner.

Abstract: An electromagnetic hydraulic valve (1), in particular proportional valve, for controlling a device for the rotational angle adjustment of a camshaft relative to a crankshaft of an internal combustion engine, composed of an electromagnet (2) with a hollow-cylindrical magnet housing (4), at least one coil winding (5), an axially moveable magnet armature (6), a first and a second pole shoe (7, 8), a valve part (3) with a hollow-cylindrical valve housing (9) having a control piston (12) which can be moved axially by the magnet armature (6) of the electromagnet (2) via a plunger rod (11). The invention consists of a sleeve (17), composed of a base (18) and a hollow-cylindrical side wall (19), which is arranged on that end of the control piston (12) and situated in the direction of the plunger rod (11), where the sleeve (17) has a greater hardness than the control piston (12).

Abstract: A wheel bearing arrangement which has at least two rows of rolling bodies for mounting a wheel hub which can be driven with the wheel bearing arrangement by a drive element. The wheel hub is connected to the drive element, and the wheel hub and the drive element engage positively into one another via a pair of mutually corresponding spur toothings. In the wheel bearing arrangement, a value of greater than three is obtained for a ratio of the diameter of a toothing reference circle of the spur toothing in the wheel bearing arrangement to the rolling body row spacing of the at least two rows of rolling bodies.

Abstract: A guide or tensioning rail (1) for a traction drive is provided, with the guide or tensioning rail (1) having at least one bearing lug (4a, 4b) with a sleeve (5). In order to simplify the assembly of the rail (1) during installation of the traction drive, the sleeve (5) on one end has a radially protruding flange (10) having two opposing detent recesses (9), and two corresponding detent protrusions (13) are formed on the bearing lug (4).

Abstract: A universal joint bush for a universal joint of a universal joint shaft. In order to seal an annular gap, which is produced between the journal and the universal joint bush, a sealing ring is provided which encloses radially outwardly directed sealing lips. During assembly of the universal joint bush on the journal, the sealing lips, which are connected directly or indirectly to a radially inwardly directed rim of the universal joint bush, make a venting means possible, through which the air which is enclosed in the inner space of the universal joint bush can escape.

Abstract: An articulated joint coupling (1) for rail vehicles comprises a coupling lug (3), which engages into a coupling fork (4), and a spherical bearing (2) in the coupling lug (3), with the spherical bearing (2) having an inner ring (5) with a convex surface (6) which is pivotably mounted in an outer ring (7) with a concave surface (8), and with the outer ring (7) being fastened in an opening (14) of the coupling lug (3). To fasten the outer ring (7) in the opening (14) of the coupling lug (3), both the outer ring (7) and also the coupling lug (3) have in each case one groove (15, 17), with a clamping ring (18) lying in the groove (17) of the outer ring (7) and simultaneously in the groove (15) of the coupling lug (3).

Abstract: The invention relates to a sealing element for a bearing, in particular a rolling contact bearing, and to a bearing, in particular a rolling contact bearing, wherein the sealing element comprises a sealing means (8) composed of an elastic material, and also at least one support element composed of a rigid material, an IC identification (2), and an antenna (3) for the IC identification (2). The problem of improving the abovementioned sealing element and the bearing in such a manner that the sealing element remains sufficiently stable mechanically and the operation of the antenna suffers little interference is solved, according to the invention, for the abovementioned sealing element and the abovementioned bearing in that the at least one support element (6) is formed from a non-metallic material.

Abstract: The radial antifriction bearing has an outer bearing ring, an inner bearing ring and roller bodies, which are arranged between the bearing rings, are held at uniform distances from one another in the peripheral direction by a bearing cage. The roller bodies are discs that each have two parallelly arranged lateral surfaces which are symmetrically flattened from a spherical basic shape. In order to prevent edge stresses between the discs and the raceways, at least the raceway in the inner bearing ring, on its outer edge areas, transition into a logarithmically decreasing profile.

Abstract: An antifriction bearing provided with sensors for recording physical quantities that act upon the hearing and with strip conductors and electronic components for evaluating and/or transmitting sensor output signals or characteristic values derived therefrom to electrical or electronic devices located outside of the bearing. To this end, the sensors, strip conductors and electronic components are placed on at least one bearing part while forming a measurement data recording and/or measurement data processing system. The sensors, strip conductors and/or electronic components are made from at least one electrically conductive or semiconducting organic material.

Abstract: The invention proposes a switchable support element (1) for a valve train of an internal combustion engine, said support element comprising a housing (2) in whose bore (3) an axially displaceable inner element (4) is received, a coupling means (6) extending in the inner element (4) can be brought partially into engagement with an entraining surface (7) of the housing (2) for achieving coupling, and said support element (1) further comprising at least one vertical stop means (10) that overlaps an annular groove (9) between the inner element (4) and the housing (2) for defining a coupling position of said coupling means (6) with coupling lash relative to said entraining surface (7), the vertical stop means (10) is constituted by at least one thin-walled ring comprising a slot (11), the ring is placed or slipped, slot (11) ahead, onto an outer peripheral surface (12) of the housing (2) to extend parallel to a transverse plane of the support element (1), the housing (2) comprises at least one aperture (13) throug

Abstract: The low profile valve lifter assembly has flats inside the bore of the outer housing and walls are formed and extended down from the plate of the guide such that the walls align with the flats of the bore to prevent rotation of the lifter with the guide. A groove and protuberance are provided in the flats and on the side wall of the guide in order to properly orient the lifter with the guide. The flats can be connected to form a pocket and the walls of the guide can be connected to form a sleeve that mates with the pocket.

Abstract: A process for producing a wear-resistant coating and to a wear-resistant coating on predetermined surfaces (2) of machine or engine parts (1) consisting of a sintered material which are exposed to frictional wear, for fuel feed units in particular, comprising at least one metal-free amorphous hydrocarbon layer (5) with sp2- and sp3-hybridized carbon applied to the predetermined surface (2) of the machine or engine part (I) for reducing friction and increasing the wear resistance of the predetermined surface (2) of the machine or engine part (1), and at least one intermediate layer of a metal-containing hydrocarbon layer formed between the predetermined surface of the machine or engine part and the amorphous hydrocarbon layer wherein the metal is a combination of W, Ti, Hf and Ge.