Abstract: Brake disk having a pot-shaped central fastening area. Reinforcing elements in the pot-shaped fastening area are disposed next to through holes in the area, for ensuring that deformations in the pot-shaped area caused by bolting fast the wheel rim do not have the effect of axial runout in the brake disk.

Abstract: A wheel bearing unit having a bearing including an outer race attachable to a wheel carrier and a rotating inner race attachable to a wheel hub. The outer race includes a first plurality of mounting openings for mounting a brake caliper assembly, and second plurality of mounting openings for mounting the outer race on the wheel carrier. The first and second pluralities of mounting openings are symmetrically arranged enabling the wheel bearing unit to be used on the left and right sides of the vehicle with the caliper assemblies in the same relative positions on both sides. The first mounting openings lie at a substantially larger radial distance from the axis of rotation of the bearing than the second mounting openings, whereby the second openings overlie a region of higher strength in the wheel carrier, and the first openings are clear of the region of higher strength.

Abstract: A ball-bearing unit for a bearing of a deep-drilling apparatus having bearing races made from steel with balls disposed therebetween. Contaminated drilling medium passes into the space between the bearing races. Load-bearing balls made from ceramic alternate with separating balls of smaller diameter made from steel between the bearing races to extend significantly the service life of the ball-bearing unit.

Abstract: A rolling contact bearing arrangement for two axially adjacent rollers, e.g. for use in a continuous casting plant. The rollers are each mounted via two rolling contact bearings, wherein the two central adjacent rolling contact bearings are arranged within the hollows at the inner ends of the rollers. The rotating bearing outer ring bearing the roller and the stationary bearing inner ring being supported by a common axle journal for both bearings, which is held in a supporting block. This arrangement enables the distance between two axially adjacent rollers to be minimized and the cast material or slab may sag less at this point.

Abstract: A wheel bearing flange with a periphery having axial extensions for the mounting of a flat annular brake disk thereon. An isolating connecting element between the axial extensions and the brake disk. The axial extensions have radially outwardly directed projections which engage in radially inward recesses with the interior of the brake disk. The connecting element elastically pre-loads the brake disk relative to the axial extensions to elastically compensate for displacements of the brake disk while driving.

Abstract: To permit a reliable, compact, low vibration, lightweight wheel bearing unit having a small number of components and useful for the driven wheels of a motor vehicle, there is a connecting part fastened between the bearing arrangement on the wheel flange and a joint bell at the wheel hub and the connecting part extending between them providing elastic damping by the construction thereof.

Abstract: In order to achieve an optimal pressure build-up function in an anti-lock braking control system for automotive vehicles and to maintain the pressure at the optimal point for long periods of time and thus achieve better brake deceleration with greater stability of travel and greater comfort than with conventional ABS control systems, the anti-lock braking control system includes, in addition to the ABS controller and monitoring circuit (3), a pressure function generator (4) which, for each wheel, intermediately stores an intermediate brake pressure value whenever wheel overbraking has been noted. Then, in the pressure build-up phase, the pressure function generator (4) gives off a signal to the pressure modulator in order to increase the wheel brake pressure in accordance with an exponential function.

Abstract: An apparatus for assembling a bearing unit, particularly a wheel bearing unit for motor vehicles, in such a manner that the wheel bearing unit is of light construction, shows no prior damage and permits great flexibility in the manufacturing process. The force which is applied for the plastic deformation of the bead (9) at the end of the hub (1) is divided between the hub (1) and its support ram (11), on the one hand, and the hub flange (2) and its receiver (10) on the other hand, and thus, the necessary plastic deformation is concentrated in the region of the bead and not in the region between the hub (1) and the hub flange (2).

Abstract: To provide good cage guidance in a window cage for a preferable flangeless spherical roller bearing in order that the bearing might achieve higher loads, the cage includes two annular axially spaced apart ribs and transverse ribs that extend between the annular ribs and define cage pockets. At least one and preferably two and preferably opposite pockets of the cage are loading pockets. The annular ribs are radially outside the pitch circle of the bearing, but at the loading pockets, those ribs are recessed inward nearly on the pitch circle of the bearing and preferably outward thereof about the thickness of the rib material. The angle between the center of the loading pocket and the adjacent pocket is larger than the angle between the centers of other adjacent pockets to facilitate loading of the loading pockets.

Abstract: A wheel bearing unit for an automotive vehicle, and particularly a vehicle provided with ABS/traction control, includes a wheel bearing that is preferably a two row wheel bearing with the inner ring. A sensor is fixed in rotation with reference to the bearing unit and is supported to the bearing unit. A pulse generating ring is mounted around the sensor and is connected with the rotatable part of the wheel bearing, and particularly with the rotatable inner bearing ring to rotate with the rotatable ring and with respect to the sensor. An additional support bearing is provided for guiding the pulse generating ring and for supporting the pulse generating ring to the sensor to provide a constant air gap between them and to reliably mount the sensor. The additional support bearing is developed as an angular bearing. That angular bearing is prestressed by a spring.

Abstract: A roller-bearing cage prevents bearing rollers from falling out of the cage when the outer ring of the bearing is away from the cage, for example, when the outer ring is removed, the cage is removed or the cage is swung out from the outer ring. The rollers are held in place by holding knobs formed on a radially outwardly directed cage flange located at the axial end of the rollers. The knobs are located radially outwardly of the pitch circle of the rollers, are spaced circumferentially apart sufficient to be out of contact with the rollers when the rollers are in the operating position of the bearing in contact with the outer and inner ring, yet are spaced close enough together that the space between two holding knobs is less than the diameter of the roller lying opposite the knobs. The knobs are formed on a resilient, outwardly directed cage flange which moves resiliently upon the snapping in and out of the rollers in the cage. The knobs may be hemispherical or frustoconically shaped.

Abstract: In order to obtain high resistance to corrosion of the surface layer in a stainless steel for case hardening with nitrogen, the steel contains the following alloy components (wt. %):______________________________________ C .ltoreq.0.03 N 0.05 to 0.18 Si .ltoreq.1.0 Mn .ltoreq.1.5 Co 1.0 to 4.0 Cr 11 to 16 Ni 1.0 to 3.0 Mo 0.5 to 2.5 V .ltoreq.0.

Abstract: A wheel bearing unit for example for use in a motor vehicle, including an antifriction bearing clamped on the hub. The hub includes a bore which defines a tubular hub part that prior to deformation extends past the axially outer end of the inner ring of the bearing. The tubular hub part is deformed radially outward around the radially inner, axially outer edge of the inner ring to clamp the inner ring and the bearing to the hub. Features of the inner ring and hub for enabling such clamping are disclosed including the hub material hardness, the hub having a tubular part of a particular wall thickness and a length protruding beyond the axial end of the bearing, the radius of the edge of the inner ring about which the bead is formed, the thickness of the bead and its angle of inclination both with reference to the end of the inner ring and to the interior bore, and the depth of the bore.

Abstract: A sealing system for a roller bearing having an inner bearing race on the axle, bearing rollers around the inner race and an outer race around the bearing rollers. A sealing cap is spaced axially away from one axial end of the races. A first sealing ring is sealed to the outer race, and it includes an axial area that extends toward and that is spaced a short distance from the sealing cap defining a first sealing gap. A felt ring is disposed within the bore defined by the axially extending area of the first sealing ring. The felt ring is spaced axially out from the rollers and defines a first grease holding chamber between the rollers and the felt ring and a second grease holding chamber axially outward of the felt ring. A second sealing ring is located axially outward of the felt ring. It includes a sealing lip which seals at the felt ring.

Abstract: A method for controlling the braking force of motorcycles, which includes storing the vehicle deceleration value which was measured when a lift-off signal occurred as an optimal deceleration limit value and reducing the braking force applied to the front brakes if the motorcycle deceleration approaches or exceeds this limit. A lift-off signal is generated if after a predetermined time from the initiation of a braking cycle, it is determined that the rear wheel has lost adherence to the grounds.

Abstract: An anti-lock system for motorcycles which includes a monitoring circuit (3) nd an overbraking preventer (4) which compares the front-wheel brake pressure continuously during the reloading phases with a pressure reference threshold and if the threshold is exceeded, with simultaneous exceeding of a high vehicle deceleration threshold, transmits a control signal to the monitoring circuit (3). The control signal results in the pressure modulator (1) only very slowly increasing the front wheel brake pressure.

Abstract: In a method for regulating the braking force of motorcycles, the wheel circumferential speed is detected by sensors and evaluated by a microprocessor which gives a signal off to a pressure modulator if given limit values of deceleration are exceeded in positive or negative direction (locking signal) and if, within a predetermined period of time, a signal which symbolizes ground adherence of the rear wheel does not occur (lift-off signal), whereupon the pressure modulator reduces the pressure in the front brake circuit.

Abstract: An antifriction bearing with an outer ring having a main groove in its periphery. The groove has sharp edges which engage the interior of a housing surrounding the outer ring. Alternately, a secondary groove may adjoin an axial side or both axial sides of the main groove. A deformable material ring having its own radially outwardly facing deformation remitting groove may be disposed in the main groove in the outer ring. The deformable ring protrudes radially out of the main groove to be deformed by the internal wall of the housing around the bearing.

Abstract: A hydraulic cylinder, preferably for use as a master or slave brake cylinder or in a hydraulic clutch system, maintains in a simple and inexpensive manner through the use of eccentric bushings the stroke length of the piston rod. The distance between the attachment lug and the attachment point determines the stroke length and is varied by adjusting the narrow tolerance of each bushing.

Abstract: To remove oil from an antifriction bearing, an annular space is defined between the outer and inner rings next to the row of bearing elements. A stationary part is at the inner ring. An oil discharge hole passes through the stationary part. An oil guide plate having an obliquely inclined baffle plate part extends partially around the rear side of the discharge hole and up into the annular space from the stationary part to guide oil into the discharge hole.