Abstract: A composite annular element, in particular a magnetic ring usable as a pulse wheel in a rolling bearing of a vehicle wheel hub; the element includes an appropriately polarized plastoferrite ring co-molded onto a metal annular ring for fitment to a rotary member; the metal annular ring is formed in one piece by pressing and bending sheet metal, and presents a sleeve portion for fitment to the rotary member, and a flange portion defining a shoulder for withstanding the axial thrust exerted by an assembly fixture, and connected continuously to the sleeve portion by a rib projecting radially outwards of the sleeve portion; the rib being defined by a 180.degree.

Abstract: A hub unit comprises a wheel bearing and a driving axle stub which is situated in a correspondingly shaped, concentric opening in the rotatable ring of the wheel bearing, and in the direction of rotation interacts by unround shapes with the ring which driving axle stub has an axle end projecting from the opening in the ring. The axle end interacts with the inner periphery of a cup spring whose outer periphery is supported under pre-tension on the ring. The cup spring is accommodated in a peripheral groove provided in the axle end.

Abstract: A single-motor drive for an open-end spinning machine, the motor being in the form of an axial field motor with a magnet/gas bearing supporting the rotor with a gas cushion, includes a gas monitoring arrangement which will detect a disruption in the gas supply, and responsive to the gas disruption, a device for braking the rotor is connected with the circuit via a switch. The braking device, which includes a ballast resistor, is set for reducing the rotational speed of the rotor in a manner whereby when the rotor bearing surface lands on the stator bearing surface due to the collapse of the air cushion, its rotational speed is less than that which would result in damage to the bearing surfaces.

Abstract: A method for analysing regularly recurring mechanical vibrations comprises the steps of plotting an amplitude/time spectrum associated with the vibrations, dividing the amplitude/time spectrum into time intervals shorter than the shortest time lapse between two consecutive excitations, subjecting those parts of the amplitude/time spectrum defined by each time interval to a Fourier transformation in order to obtain an amplitude/vibration-frequency interval spectrum associated with each time interval, and subjecting those amplitudes in each amplitude/vibration frequency interval spectrum associated with certain vibration frequencies to a Fourier transformation in order to obtain an excitation-frequency spectrum associated with the respective vibration frequency.

Abstract: A system for preloading the bearing of a cooling water pump for motor vehicles. The pump comprises a shaft and an impeller mounted on one end of the shaft and, an outer bearing ring surrounding the shaft. An axial face seal is mounted on one projecting end of the shaft operable bearing ring and to tension spring-loaded sliding rings with a predetermined contact pressure against each other. The outer axial end face of the axial face seal is aligned with the axial end face of the shaft to simplify and insert the same preloading of the bearing for assemblies put together by mass production techniques.

Abstract: A method and device for establishing the correct amount that a bearing should be driven up a shaft involves measuring the strain on at least one of the side faces of the bearing ring through use of a sensor arranged on the side face of the bearing ring. The strain is measured while the bearing is being driven or moved along the shaft. The instantaneous bearing internal clearance reduction in the bearing can then be calculated from the measured instantaneous strain and the value for the known initial bearing internal clearance of the bearing.

Abstract: A vibration detecting and condition monitoring system for the press section, including felts, rollers and presses, employing a feature extracting circuit having a selectable plurality of Bessel type bandpass filters and an enveloping circuit to square the bandpassed signal output prior to FFT analysis of the signal. The system enables the enhancement and detection of highly impulsive signals in the frequency domain, that are indicative of defects in machinery operation.

Abstract: In a method for producing machine elements of steel having a carbon content of 0.3 to 1.1%, blanks are heated to austenitizing temperature and austenitized, quenched for the formation of martensite, heated from room temperature to a maximum tempering temperature, and immediately after reaching said maximum temperature cooled to room temperature to attain a hardness of 45 to 65 RHC and finish-machined to machine elements.

Abstract: Bearing assembly for a vehicle hub comprising two coaxial rolling bearings having inner races and outer races, the outer races being accommodated in a common outer bush, which outer bush is provided with a flange and hub for fixing a vehicle component thereto, the inner races being accommodated on a common central element, the rolling bearings being supported on the central element and the outer bush under initial load in the axial direction.

Abstract: A roller bearing including inner and outer races defining an interior space therebetween, and a plurality of cylindrical rollers between the races, each race having opposite axial end surfaces, a seal situated at each end of the bearing, each seal including a loosely fitting flange ring extending radially between the races, the ring having an inner axial surface facing the axial end surface of the inner race, thereby defining facing end surfaces, the ring and the inner race respectively having bore surfaces, the inner race having at least one hole extending generally radially from the bore thereof to the interior space for supply lubricant to the interior space, and pressure equalizing passages communicating the interior space with the exterior of the bearing, the openings comprising at least one passage in one of the facing surfaces and at least one axial passage axially traversing the ring.

Abstract: A pillow block assembly comprising a hollow housing having axially spaced end walls, an opening in at least one end wall for a rotable shaft member, a bearing in the housing to rotatably support the shaft member in the housing and a seal in the wall of the housing defining said opening including a labyrinth seal member mounted on the shaft, and first and second resilient sealing members disposed between the labyrinth seal member and the housings and between the shaft and the labyrinth seal member, respectively.

Abstract: In a device for detecting the rotational speed of a motor vehicle wheel, a sensor and a sensor bracket. The bracket is mounted on a non-rotating part of the vehicle chassis such as an axle journal. The sensor bracket (1) has a tubular socket for the sensor (13) with a locking clip (3), which can be flipped open around a hinge (4), and a latching element (8, 9), which holds the locking clip (3) in a closed position.

Abstract: A rolling bearing comprises an inner race and an outer race which together enclose a bearing space in which rolling elements are accommodated, which bearing space is sealed off by means of seals fixed on the outer race. In order to prevent oil leakage, provision is made for the fastening between each seal and the outer race to be liquid-tight. The outer race can comprise at least one groove in which a seal is accommodated, while an elastic shut-off element can be provided, which shut-off element is accommodated in the groove.

Abstract: In a shaftless spinning rotor assembly wherein the spinning rotor is the rotor of an axial field motor, an improved transfer of power and improved running properties are attained by forming the stator windings in channels which extend substantially radially in the stator core and are enclosed over at least a portion of their length by magnetically conducting material. As compared with known gap windings, the windings can be placed in multiple layers while at the same time avoiding marked graduations in permeance and in the specific current density so that eddy currents in the rotor can in turn be reduced and rotor heating remains within reasonable limits. The stator is preferably formed of multiple component parts which allows optimized selections of materials.

Abstract: Rolling-contact bearing equipped with a sealing device for the passage of a fluid. The bearing comprises a rotating race and a non-rotating race, through each one of which there pass channels (6,7) for the passage of fluid, rolling bodies (3) between the rotating race and non-rotating race, and a sealing device (8) mounted between the rotating race and non-rotating race to form a sealed intermediate chamber (14) communicating with the channels (6,7) for the passage of the fluid. The intermediate chamber has two flexible walls (11), the free end parts of which form two sealing lips (12) in rubbing contact with a bearing surface (13) of one of the races (2) of the bearing. The sealing device (8) comprises two coaxial seals made of a flexible material and held against each other by means of a metal reinforcing member (10), each of the seals comprising a ring of axial teeth (16) separated from one another by circumferential gaps.

Abstract: The device for connecting bearing rings with ring-shaped grooves is machined into the peripheral surfaces. An essentially sleeve-shaped connecting element engages in these grooves, where flange-shaped retaining projections on the connecting element cooperate with conical clamping surfaces of the ring-shaped grooves, which are characterized by ring-shaped grooves formed in the ring-shaped undercut. These grooves have positive-locking surfaces oriented toward its interior and snap-lock elements are arranged in a ring on the retaining projections to grip behind the positive-locking surfaces.

Abstract: A three-race bearing for rolls or pressure rollers having inner and outer races and a common center race forming an outer roller bearing which is exclusively a radial bearing and the inner roller bearing which is exclusively an axial guiding rolling bearing.

Abstract: Bearing design for the drive gear and the pump impeller of a cooling water pump for motor vehicles, with a shaft, which is installed so that it can rotate by means of two rows of balls in an outer bearing ring, and which projects on both sides beyond the outer bearing ring, characterized in that the shaft (12) is produced by the extrusion method and has a wall (20) separating chambers or compartments extending inwardly from opposing ends of the shaft, the wall is located on the drive side outside the rows of balls (24).

Abstract: A shaftless spinning rotor for an open-end spinning machine is adapted to operate as a rotor driven by a stator in an axial field motor supported thereon by a combined magnetic and gas bearing producing separate magnetic fields for guiding orientation of the rotational axis of the rotor and for driving rotation thereof which achieves smooth substantially non-oscillating operation with minimal heating in the region of the axis of rotation by interposing a barrier layer with nonmagnetic properties between respective means for conducting the magnetic flux of the driving and guiding magnetic fields for decoupling the magnetic fields. In particular, separate yokes are utilized for conducting the fluxes of the driving and guiding magnetic fields and permanent magnets are primarily used to generate the magnetic fields.

Abstract: A spindle arrangement such as a machine tool spindle which rotates at high rotational speeds includes separate elements, which may be in the form of a counter-weight and a driving and positioning shoulder, that are mounted on the spindle nose. The separate elements are secured to the spindle nose by locking pins that arranged at an angle to the rotational axis of the spindle nose. During rotation of the spindle nose, centrifugal force gives the locking pins a component force in a direction causing the elements to be wedged and the locking pins to be pressed into the bores.