Abstract: A taper roller bearing comprises an inner ring and an outer ring having tapered raceways, a bearing space in which tapered rollers are arranged, as well as a cage for mutually spacing the rollers. A grease retainer is connected to the outer ring. The grease retainer is situated next to the inner ring part having the smallest raceway diameter. The retainer comprises a ring-shaped channel in the inner space of which grease can be accommodated. The channel has apertures for communicating the channel inner space with the bearing space.

Abstract: Axial roller bearing assembly for absorbing the axial forces of a steering knuckle pivotally supported on a steering knuckle bolt at the end of an axle of a vehicle comprising first and second bearing disks having spaced confronting raceways for a plurality of rolling elements. One of the disks has a sleeve-like edge, which encloses the rolling elements and the lateral surface of the second disk with play and prevents the rolling elements from escaping radially outwardly. A sealing ring made of elastic-type material is disposed between the sleeve-like edge and the lateral surface. A stop ring (27), separate from the disks (13, 16), is provided on the inner radial envelope circle of the rolling elements (15) to prevent the rolling elements (15) from escaping radially inwardly.

Abstract: A bearing arrangement, designed in an X-configuration for a planet gear is provided with two angular roller bearings mounted a certain distance apart. Barrel-shaped needles have a large radius of curvature and their length is considerably greater than their diameter. Raceways of the two angular roller bearings have a circular curvature, center of which is located in the radial direction, outside the raceway diameter and in the axial direction, between inner lateral surface and axial center of angular roller bearing in question. As a result, the bearing arrangement is able to pivot slightly even though its dimensions are very small and can also absorb axial loads.

Abstract: An end face seal especially adapted for use in severe service environments such as for sealing track pins or track rollers of crawler type tractors. The seal includes a primary annular seal ring, having a radially extending flange with a portion for contacting a mating surface on a machine part in face sealing engagement and an axially extending flange portion, as well as a secondary annular sealing ring positioned in use about the axial flange portion. The secondary seal ring includes an abradable auxiliary excluder lip that contacts a portion of the machine part with the mating surface so as to initially exclude grit from the seal band area of contact between the seal ring and the machine part.

Abstract: A bearing-upright unit supporting a rotary hub of a vehicle wheel, wherein the bearing has the inner ring fitted to the rotary hub of the wheel, and the outer ring locked stably to the upright; and the outer ring has an asymmetrical tubular projection extending from only one side of the outer ring, and which is interference-fitted to the upright and locked axially by cold rolling the outer edge of the projection. Advantages: assembly is simplified by involving fewer operations; the outer ring is of simple design, small size, and cheap to produce; the upright may be of simpler design, lighter in weight, and therefore cheaper to produce; and, in the case of an aluminium upright, the outer ring remains safely and firmly locked to the upright at high temperature, by virtue of the greater axial expansion of the upright with respect to the outer ring compensating for any reduction in radial interference.

Abstract: In a ball bearing for an automobile wheel hub comprising a double set of balls, the inner race is composed of two half-races to allow mounting of one of the two sets of balls. A first set of balls (2) is located between an outer race (3) and a facing portion of the hub (4). A second set of balls (5) is located between the outer race (3) and an inner half-race (6) fixed onto the hub (4). The inner half-race (6) is secured by an ring-like end portion (9) of the hub (4) folded by cold forming. A substantially flat washer (10) is interposed between said inner half-race (6) and the ring-like end portion (9).

Abstract: A method and hydraulic nut for mounting a hollow article which has a conically shaped opening, such as a conical ring, on a conical shaft. The method comprises the following steps: a) installing the hollow article on the shaft, in order to fit the conically shaped surfaces of the article and the shaft against each other; b) moving the hollow article to a starting position (B), in order to provide an initial press fit; and c) moving the hollow article over a predetermined distance (S.sub.s) from the initial position to an end position (C), in order to provide a final press fit.

Abstract: In a raceway-guided or flange-guided cage made of plastic for roller bearings, webs (18) between side rings (14) and (16) are specially designed to prevent foreign particles present in the lubricant from damaging contact surfaces (S) of rollers (R). For this purpose, guide surfaces (26) are provided only at edges of rollers (R). Intermediate web side surfaces (30, 32) are set back from contact surface (S) by a wider gap (G). Retaining projections (40) are also separated by a gap (G.sub.1) from contact surface (S) in the axial center, the point of greatest flexiblity for the snapping-in of the rollers.

Abstract: An electrically conducting polymer thickened grease composition containing1) a lubricating base oil,2) a polymer thickener,3) an electrically conducting component,4) optional further additives, is provided.The polymeric thickener is a mixture of (1) a (co- or homo-)polymer of propylene with a weight average molecular weight >200,000 and (2) a (co- or homo-)polymer of propylene with a weight average molecular weight <100,000. The electrically conducting component is preferably a metal containing additives, an anti-static agents or an electrically conducting solid. The grease composition can conduct electricity through the parts of a roller bearing, not only under static conditions, but also during use. This makes the greases especially suited for use in roller bearings with rotating electrical contacts. The grease can further reduce or prevent the build-up of static electricity and spark formation in roller bearings.

Abstract: A liquid seal unit having a seal ring with an annular end face cooperating with a seal mating ring on an associated component to form a liquid-tight dynamic seal. A composite multi-functional member with a flexible finger spring embedded in a unitary elastomeric body urges the seal ring and the mating ring together. The spring has an annular continuous outer body portion and a plurality of circumferentially spaced apart, radially inwardly extending flexible spring fingers. The unitary elastomeric body includes radially spaced, first and second annular load bearing formations that extend in axially opposite directions. The elastomeric body still further includes an axially extending sealing ring positioning collar lying radially between the load bearing formations and having an inner surface that engages a seating surface in the seal ring to provide a secondary seal.

Abstract: A drop protection device for actuator devices of the type which are intended to raise and lower a load. The drop protection device includes a sleeve shaped member which, during normal operation of the actuator rotates along with a threaded spindle of the actuator. During rapid acceleration of the spindle, such as that experienced when the drive gear breaks down and the spindle rotates freely so as to cause the load to uncontrollably drop, the sleeve shaped member will, as a result of its mass inertia, be brought into contact with a stop device for preventing further rotation of the spindle. Thus, the drop protection device prevents the load from being damaged or causing damage to peripheral equipment or individuals.

Abstract: In a device for gauging the relative revolving speed of the races (10, 11) of a ball bearing, an impulse ring (12) is integral with the rotating race (10) of the bearing and faces a sensor (13). The sensor is integral with the stationary race (11) and electrically connected to a unit for processing data generated by the sensor. The sensor (13) is integrated in the body of a detachable connector (17) for fitting in a connection seat (15) fixed to the stationary race (11). The connector is provided with quick coupling means (19, 20) for mounting to said connection seat (15).

Abstract: A cage for roller bearings, comprising a pair of spaced rings (3, 5) having confronting raceways (R.sub.i, R.sub.o) for plurality of rolling elements (6), the cage comprises at least one annular side ring (8), a plurality of webs (9) extending from said side ring (8) which are circumferentially spaced to define pockets (P) for the rolling elements (6). The free terminal ends of the webs remote from the side ring (8) have projecting portions (11, 12) which partially enclose the rolling elements (6). Each of said webs (9) has an elongated radial through slot (10) dividing each of said webs into web portions (9', 9") which are displacable inwardly relative to one another to permit insertion between the rolling elements (6).

Abstract: A method for mounting on a shaft extending through a housing a preloaded rolling bearing assembly incorporating first and second rolling bearings capable of supporting axial load, involves mounting the outer race rings of both bearings in axially fixed positions in the housing, mounting the inner race rings with a shrink fit on the shaft and with rolling bodies disposed between the inner and outer race rings, and introducing in the interface between the inner envelope surface of the inner race ring of the second bearing and the shaft a pressure medium to create a thin medium film in the interface for allowing the inner race ring of the second bearing to be axially displaced on the shaft. An axial force is then applied to the inner race ring of the second bearing and the axial force thus applied is measured. The pressure medium is then drained from the interface between the inner race ring and the shaft when a predetermined axial force is reached, whereupon the axial force is relieved.

Abstract: Lubricated rolling contact devices, especially full ceramic or hybrid ceramic rolling bearings, are designed so that the ceramic contact surface or surfaces are coated with a thin film formed from titanium dioxide in anatase form. The titanium dioxide film can be applied from a composition including particles of the titanium dioxide in grease or oil.

Abstract: A rolling-contact bearing has a speed-detecting device which includes a sensor which is fixed to a non-rotating race of the bearing, and an encoder element which is mounted on a subassembly which includes two rotating races. The rolling elements of the bearing are held by two axially spaced cages. The encoder element has an active part and a radial part which supports the active part. The radial part extends between the two cages. The active part of the encoder element has an axial dimension which is greater than the axial distance between the two cages.

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 fluid seal including a casing unit and an elastomeric lip body portion. Frustoconical air and oil side surfaces of the lip body meet at an inner diameter portion to form a fluid seal band contacting an associated shaft in use. A continuous, circumferentially extending garter spring is embedded in the seal lip body. An axially inner surface of the lip body is defined in part by plural spaced apart ribs and the remainder is defined by pockets having portions lying closely adjacent the radially and axially innermost portions of the garter spring. In the free state of said seal, the garter spring exerts a radially inwardly directed preload force so as to resist radial expansion of said seal. The spring also resists dimensional shrinkage of the seal band and the remainder of the seal body.

Abstract: A wheel bearing is provided with a sensor device for ABS systems, wherein a support ring for a sensor coupled is rotationally movable and is releasably secured by a groove in the bearing race from the axial movement. At initial installation the unit is placed on the bearing seat, pressing the support ring into predetermined axial position on a cylindrical surface of the axle member. In operation any creeping of the bearing race will cause no damage, and when the bearing is replaced the support ring with sensor remains in place on the axle member.

Abstract: A cage for a rolling element bearing, comprising elastically deformable prongs, each pair of prongs defining a cage pocket in which a rolling element can be accommodated by snapping-in. The thickness dimension of each prong, perpendicular with respect to its surface facing the corresponding cage pocket, is gradually diminishing, in the direction towards the free end of the prong. Preferably, the thickness dimension of each prong is diminishing, in general, according to a parabolic function. Thereby, the highest possible retaining force for the rolling elements is obtained, and yet the strains in the prongs upon assembly of the rolling elements are as low as possible.