Abstract: The invention concerns a roller bearing for performing swivel motions including a mechanism for synchronously guiding the roller bearing cage, including a roller bearing cage having a journal with a rotatable pinion gear flexibly and elastically mounted thereon in the direction of the circumference of the cage by a crosspiece, the pinion gear having teeth which mesh with at least one set of teeth on the bearing parts of the roller bearing. Stops are provided to limit the motion of the pinion gear.

Abstract: Free-wheel device having clamping cams, intended to be mounted between an external cylindrical sliding path (5) and an internal cylindrical sliding path (4) comprising a cage (3) of generally cylindrical shape provided with a plurality of apertures (8) for the passage of at least part of each cam (2) and a strap spring (1) of generally cylindrical shape provided with a plurality of windows (9) within which the cams are mounted, each cam bearing against a rim of the corresponding window defining a pivoting edge (10) for the cam and subjected to the action of a pivoting tongue (11) fixed to the spring, tending to cause the cam to pivot in the direction favouring clamping while exerting a thrust on the cam towards the pivoting ridge (10), characterized in that the position and the shape of the zone of contact between the cam and the pivoting tongue are selected in a manner such that the lever arm (l) of the variable force (F) exerted by the tongue relative to the pivoting edge (10) varies in inverse proportion t

Abstract: A wheel bearing device with a built-in homokinetic coupling, including a generally annular inner part, an outer race and two rows of rolling elements located between the outside running surfaces formed on the outer race and the inside running surfaces applied to the inner part. The outer race is equipped with a radially extending flange for the attachment of the bearing, and the annular inner part is equipped with a radially extending flange to which the hub of a wheel can be attached. This inner part forms at the same time one unit with the outer ring of the homokinetic coupling characterized by the fact that the flange of the inner part is extended with a brake element which forms the part to be braked of a braking mechanism. The inner part of the bearing, the carrier flange for the wheel, the brake element and the outer ring of the homokinetic coupling forms one homogeneous unit. The inner raceway surfaces for the rolling elements are formed of a high grade bearing material.

Abstract: A device for use in explosive welding of two overlapping tubular or annular elements (1, 2) by an explosive charge (3). The explosive charge (3) is located in the hold of the one element (1) in front of the overlapping portion of the other element (2). The elements (1, 2) are surrounded by an annular dolly comprising a plurality of segments (4) which are individually radially movable and associated with braking means. Each segment (4) is provided with a plurality of frictional surfaces (5, 6, 7, 8) which extend radially relative to the dolly and are adjustably forcable against opposed frictional surfaces on a supporting means (9), which bridges the dolly. A device according to the invention absorbs energy efficiently and can be re-used several times without requiring adjustment or replacement of parts incorporated therein.

Abstract: A center-free rolling bearing assembly for machine tools comprising a disk-shaped outer ring, two adjacent outer raceways on the inner radial edge of the outer ring which converge conically together in an axially and radially inward direction, an inner ring, two conical inner raceways on the lateral surface of the inner ring, one in parallel with each outer raceway, and a row of cylindrical rolling elements between each outer raceway-inner raceway combination. The rolling elements of each row are guided laterally by the side surfaces of inner and outer guide flanges forming a single piece with the inner ring. The outer raceways form a single piece with the outer ring and the inner raceway form a single piece with the inner ring. At least one of the two outer guide flanges are formed by an outer flange ring which can be fixed in place on a seating section of the lateral surface of the inner ring, so that the rolling elements can be installed between the two outer and inner raceways.

Abstract: In a spring biased tension arrangement for transmission belts, a friction element is installed coaxial with respect to the pivot bearing. The friction element provides a turning direction dependent damping of the pivot arm. It may be disc or sleeve shaped and is inserted in an annular space to contact a limit surface with rubbing contact. Tongues or spoke elements, inclined to the turning direction, have inclinations dependent more or less elastically upon the turning direction and act for example to change the overall height or thickness of the friction element and therewith an increase of the friction force. The tongues or spoke elements can be connected with a separate spring or formed as a unit with the friction element.

Abstract: To separate zinc out of a hot gas containing zinc vapour, a flow of lead is circulated in counterflow to the gas in a condenser. Heat from the lead flow from the condenser is transmitted to a chamber from which lead is transferred to the condenser. The lead flow from the condenser is cooled in known manner to a temperature at which its zinc saturation solubility is lower than its zinc content, thus causing precipitatioin of the zinc. The precipitated zinc is then separated off. The cooled flow of lead, poor in zinc, is transferred to the chamber for heating by the heat transmitted thereto so that the lead flow heated in this way and supplied to the condenser acquires a zinc saturation solubility higher than its zinc content.

Abstract: A sealing shield assembly for a rolling bearing has at least one ring with a seat comprising at least one essentially reinforcing member and an anchoring device made of an elastomeric material for securing the enforcing member in the bearing seat. The reinforcing member includes a peripheral annular sleeve portion shaped like a cylindrical sleeve, and an anchoring device which includes a radially elastically compressible sleeve section made of an elastomeric material. It is secured as a unit to the sleeve portion on a lateral coupling surface thereof, and is adapted to be interposed between the annular sleeve portion and the bearing seat. A plurality of axial grooves are on a separate lateral surface opposite the said coupling surface of the annular sleeve portion. The grooves extend from a continuous annular end portion of the elastomeric sleeve section to a point corresponding to a terminal rim of the annular sleeve portion interrupted by the grooves.

Abstract: In a swivel bearing for a braking device the fixed machine part is provided with a flange which has friction surfaces for damping the swivel motion. A flange sleeve made of sheet metal axially and radially surrounds a flange which adjoins the front side of a sleeve section belonging to the swivel arm. The resulting annular space contains, besides the flange, an axially acting spring washer. The flange sleeve itself may optionally have an axial spring action. The flange sleeve is secured axially and against torsion at the sleeve section by means of a turned edge or similar means. The result is a compact arrangement which does not easily disassemble, even in an unmounted condition.

Abstract: A bearing on a shaft is separated from the bore of a housing by an intermediate sleeve. The sleeve has an annular recess in its end surface, the end surface being spaced from the shaft. A sealing element extends radially in the annular recess and axially between the shaft and the intermediate sleeve. The axially extending arm of the sealing element has a flange extending behind a radially extending surface of the intermediate sleeve to axially hold the sealing element, with play, to the intermediate sleeve. The sealing element is mounted with prestress on the shaft, to rotate therewith during operation.

Abstract: A device for producing an axial displacement of two opposing relatively rotatable thrust members having a plurality of conical rolling elements installed between the thrust members which roll on angled ramps hus change the distance between the thrust members, at least one of the thrust washers having a conical face; and a loose outside flange designed as a closed, flexible ring circumscribing the rollers which absorbs the radial forces proceeding from the loaded conical rollers and exerts a binding effect on the conical rollers.

Abstract: A method of producing an object of at least two parts movable relative to each other, one of which parts is essentially locked inside the other, and wherein a rolling bearing is disposed, between the two parts in races, which includes at least one row of rolling elements enclosed thereby, one of the parts consisting of at least two separate pieces of steel subjected to a hardening operation, wherein these pieces are placed against each other in a proper position to form a parting seam, and wherein the rolling elements are inserted and the two parts are held together in that position, and wherein a high-energy radiation welding means is passed over the seam and activated, while a rotary motion of the energy beam and the two parts are brought about to weld the two pieces together, characterized in that the steel pieces are subjected to a surface hardening with the regions of the pieces bordering upon the seam shielded from the hardening process, so that they are not hardened.

Abstract: The invention relates to a device for retaining two parallel tracks, such as conveyor tracks, and for adjusting the distance therebetween. The device comprises a supporting beam which extends transversely relative to the parallel tracks. Two mounting units for the tracks are mutually displaceably arranged. The position of the mounting units is settled by means of a common shaft, which is axially fixed and provided with right-handed or left-handed threads, said threads being intended to cooperate with corresponding threads in the mounting units.

Abstract: The invention concerns a device for synchronous guiding a roller bearing cage for a roller bearing performing swivel motions, the device comprising a roller cage and bearing parts which swivel relative to one another, the roller cage provided with a pinion gear formed on two diametrically opposed sites with curved toothed segments having different pitch circle diameters, the toothed segments meshing with the teeth of the bearing parts.

Abstract: Shaft bearing assembly comprising a bearing housing having one or more rolling bearings therein, through which a shaft protrudes on at least one side, which housing is provided with an inlet opening for the supply of lubricant and an outlet opening for excess spent lubricant and seals acting on the shaft and outlet opening, characterized in that the bearing housing is provided with a temperature-and pressure-sensitive outlet valve for draining excess lubricant from the housing, which outlet valve opens at a predetermined temperature and closes when the temperature falls below that temperature.

Abstract: A ring-shaped machine part of relatively hard material with an essentially cylindrical seating surface which has at least one ring-shaped milled section on which a machine part of relatively soft material with a corresponding seating surface can be seated coaxially in a form-locking manner. The milled section is provided on at least one axial end of the hard machine part and extends, starting from the cylindrical seating surface, to the end surface.

Abstract: A seal for an axle bearing lubricated with oil, including a swivel ring fixed to the shaft and protruding radially outward which operates in conjunction with a sealing ring connected to the bearing housing and protruding radially inward. Between the sealing ring and the swivel ring a separation ring is located which protrudes radially inward and is connected to the bearing housing. A number of surfaces on the insides of the sealing and separation rings, together with corresponding surfaces on the outside of the swivel ring, enclose annular gaps, whereby several of these surfaces are conically at an angle from the inside to the outside with regard to the cardioid of the shaft.

Abstract: A method is offered for assembling an inner race for a roller bearing and an annular cage containing rolling elements, whereby the cage does not suffer permanent deformations, so that the inclination of the rolling elements is not impaired in any way and that the roller bearings ultimately produced by means of the units thus obtained have a much longer working life; which method is characterized by the fact that from the end of the inner flange of the inner race, material is removed in such manner that a revolving end plane is obtained of this flange which--with regard to the cardioid line of the race--is tapered from the inside toward the outside of the flange, following which the inner race and the cage containing the rolling elements are brought together in an axial direction, essentially concentrically and, through the exertion of force, are pressed together, whereby the rolling elements slide over the slanting end plane of the inner flange until they land in the track of the inner race.

Abstract: Seal for bearings having inner and outer rings comprising a sealing ring mounted in a cylindrical recess in one of the bearing rings and defining a radial clearance between the axially oriented shank of a retaining ring having an L-shaped cross section and the bore surface of a cylindrical recess in one of the bearing rings. The sealing ring being fixed in a bore of the retaining ring and projecting laterally from the retaining ring and resting with axial pretension against a radial surface of the one bearing ring.

Abstract: A device for supplying a lubricant to a mechanism, in particular a rolling bearing, comprising a container for holding a quantity of lubricant which at its lower edge is provided with a discharge channel for the lubricant and wherein a spring-loaded piston-like element is located in such fashion that the force of the spring presses this element in the direction of the discharge channel, characterized in that in the discharge channel is mounted a valve member, normally found in the closed position, which is coupled with an electric circuit which upon excitation controls the valve member bringing this valve member into the open and again into the closed position.