Abstract: A roller bearing unit comprising an inner race element having a homokinetic coupling at one end and a coaxial extension forming a gudgeon at the other end whereby two rotating tracks for two rows of rolling elements are provided on the outer surface of the inner race, an outer race having a conical shape surrounding the rolling elements and being integral with an attachment flange, whereby the rotating tracks for the rolling elements have different diameters, the larger diameter track being at the homokinetic coupling end and being closest to the attachment flange, the larger diameter track being formed directly on the inner race.

Abstract: Seal for a generally annular gap between a pair of relatively rotatable or reciprocatory annular machine members, one member having at least one continuous perimeter surface portion located in the gap or in contiguity to the gap, and the other member having a corresponding surface portion located in the gap or in contiguity to the gap, respectively, characterized by a first coating of an adhesive material applied to said one surface portion, and a second coating of a multitude of closely spaced short flexible fibers of a generally equal length supported in said adhesive material, and said fibers being generally oriented with respect to said one surface portion, each fiber being independently secured solely at one end by said adhesive to said one surface portion, and at least a plurality of the free fiber ends in anti-frictional contact with said corresponding surface portion of said other member.

Abstract: A seal for a shaft rotatably mounted in a housing. The seal is fabricated of a resilient material and includes a generally hollow elliptical attachment and an annular lip-shaped element which extends outwardly at an angle from a top side of the attachment. The lip-shaped element has a terminal free end which rests against the housing in a plane perpendicular to the shaft axis. When the seal is slidably positioned on the shaft the elliptical attachment deforms into a cylindrical shape in sealing relation with the shaft. This deformation causes the lip-shaped element to assume an elliptical configuration. Rotation of the shaft relative to the housing causes the free end of the lip-shaped element to move back and forth in a radial direction affecting removal of dirt particles from the housing.

Abstract: A drill head having isostatically bonded therein the shank portions of hard, wear-resistant cutting elements. The drill head can include cutting elements of various shapes and contours. The varied shaped cutting elements result in additional resistance to forces encountered under operational conditions.

Abstract: A system for measuring the variation in the capacitance of a bearing installed on a shaft in a housing. It is shown to include an electrically conductive measuring ring interposed between the bearing and the housing, an insulating layer surrounding the measuring ring wherein the insulating layer between the bearing and the measuring ring is considerably thinner than the remaining portion of the insulating layer, and measuring means connected to the measuring ring and the shaft to measure the variations in the capacitance of the bearing. In such a system, capacitance measurements are made without significant interference from the capacitance existing between the housing and the shaft.

Abstract: A method and apparatus for manufacturing a multilayer powder blank, and the product of such manufacture which is suitable for subsequent extrusion. A hollow cylindrical container with its central axis oriented horizontally is rotated while powder is allowed to fall from a powder distribution tube in the center of the container downward onto the inner surface of the rotating wall, thereby forming successive layers of powder which are maintained in position by centrifugal forces acting thereon. The powder blank consisting of the multiple layers is removed from the container, isostatically compressed, and finally sintered, with fusion of the outer powder layers into a fused, water-tight coating.

Abstract: A lubricating composition having self oil-releasing properties comprising polypropylene having a low melt index and a synthetic lubricating oil based on one or more neopentylpolyol esters, the acid residues of which on the average, have a relatively short chain, which composition can be shaped into and behaves as a mechanical component.

Abstract: Seal assembly for a rolling bearing assembly having an inner race ring (5) adapted to be mounted on a shaft member (18) and an outer race ring (4) radially spaced from the inner race ring (5) defining an annular space for rolling elements (16) comprising a contoured sealing ring (1) connected to the outer race ring (4) cooperatively associated with a closure member (2) mounted on the shaft member adjacent one axial end of said inner race ring (5) to seal the annular space at least at one axial end of the rolling bearing assembly, said sealing ring (1) having an outer portion (3) connected to the outer race ring (4) inner and outer axially directed annular wall portions (7, 10) connected by an intermediate wall portion (8) and spaced apart radially to define an enlarged chamber overlying and spaced radially outwardly of said closure member (2) annular lubricant chamber (13), said closure member comprising an annular body portion (2a) and an axially outwardly directed flange portion (14) spaced radially from th

Abstract: A clutch release bearing for attachment to a diaphragm spring declutching member, the bearing comprising an outer race and an inner race, an annular series of rolling elements which roll on the raceway of each race to transmit thrust therebetween, one bearing race having a radially extending shoulder for engagement with a diaphragm spring declutching member and a sleeve attached to that race for rotation therewith about the axis of the clutch, which sleeve extends axially for connection with the side of the diaphragm spring declutching member remote from the bearing, the other bearing race having a radially extending shoulder on which a clutch operating member can act to move the bearing axially to engage and disengage the clutch.

Abstract: A universal joint is provided with an outer ring and has a socket, an inner ring accommodated in the socket, and a set of flatted balls accommodated in groove-like ball races. The ball races are formed in the surface of the socket and in the surface of the inner ring, respectively, to transmit rotation from one ring to the other ring, wherein a ball with its flat face can freely cooperate with a curved surface of a race.

Abstract: A homokinetic coupling with an inner ring contained within a groove-like ball race within the outer ring, and with a series of flattened balls therebetween for imparting rotation and transmitting forces, the balls being at least partially enclosed by a flexible annular ball cage.

Abstract: The process is principally based upon an electrochemical technique due to which the binding material for tungsten and cobalt is dissolved and from the solution under certain conditions cobalt or its composition is regained. From the undissolved material after electrolysis tungsten is disposed. By this improved method a very fast decomposition of the hard metal is obtained. Tungsten carbide scrap--a waste material from hard metal tools--can be a decomposed preferably by electrolysis as shown in FIGURE attached.

Abstract: A process for the production of objects consisting of at least two parts, such as the inner and outer rings of a bearing movable relative to one another. One part is substantially enclosed within the other part and at least one of the parts comprises at least two separate elements. These elements are placed against one another and held in the correct position in relation to the other part. Thereafter, a high energy beam welding means such as a laser or electron beam is set up over the juncture line between the two elements and operated while at least the two elements are moved bodily in order to move the juncture line past the energy beam and weld the pieces together. The process also includes the use of one or more loose members such as rolling elements which are introduced at the time the two elements of one part are assembled in the correct position in relation to the other part and thereafter the two elements of the one part are welded together.

Abstract: A ball bearing wherein each holder has only one oval-shaped race and a plate-like bearing surface member formed as a gutter-like circulating bearing surface conforming to the oval shape with four ball holders situated in the housing such that the bearing surface members run obliquely outward toward one another so that the straight race sections for the balls absorbing the load at one edge and the other straight race sections at the other edge run essentially along the ribs of two rectangular parallelpipeds having different cross-sectional dimensions.

Abstract: A system for lubricating a bearing adapted for high rotational speed comprising a stationary and a rotatable race ring and a plurality of rolling elements guided by a cage in the annular space between the rings. The lubricating system for supplying lubricant to the races of the bearing comprises a ring made of a porous material fixed adjacent at least one axial end of the stationary race, an annular lubricant source located adjacent the porous ring which extends into the region of the running surface of the rotating race whereby the lubricant under the influence of negative pressure generated by high rotation is drawn from the lubricant reservoir through the porous ring, circulated through the bearing raceways and rolling elements and returned to the porous ring along the running surface of the stationary race ring.

Abstract: The method of manufacturing such drill head by embedding the shank portions of hard, wear-resistant cutting elements in a mold containing metal powder, cold isostatically compacting the powder and shank portions to form the core part of the drill head, and hot isostatically compressing this core part to completely densify same.

Abstract: A slide bushing, adapted to be sprung into a round housing bore, is formed of a spring steel band having a thickness between 0.2 and 0.5 millimeters, and is provided with a plastic antifriction layer on the inner surfaces thereof. The slide bushing, when not installed, is in the form of an ellipse having a ratio of length between the major and the minor axes of 1:0.9, with the minor axis intersecting the slit.

Abstract: A drill bit for conical cutting elements, each secured to a bit segment by an annular locking bearing which is fed by a first lubrication system which directs high pressure lubricant through the bit segment and locking bearing to space external of the drill bit at lower atmospheric pressure; each cutting element is further coupled to the bit segment by a second annular bearing radially inward of the locking bearing and lubricated by a second lubrication system independent of the first; the second lubrication system defines a closed space containing lubricant and the second bearing with one boundary of this space being a flexible wall whose outside surface is exposed to the atmospheric pressure external of the drill, the wall being deflectable to equalize the pressure of the second lubrication system with the atmospheric pressure.

Abstract: Cage for a bearing which is only axially insertable from one side of a bearing which comprises inner race and outer race rings both provided with an integral flange and rows of rolling elements running in race ways between the rings, each two adjacent rolling elements out of two rows in circumferential direction of the bearing being separated in relation to the next pairs of rolling elements by a bearing cage member, characterized in that the bearing cage-partition member has such a shape that it is elastically compressible at least in radial direction, such that the rolling elements during loading of the bearing both in the same as well as in the adjacent race way can take relatively small distance differences in relation to each other.

Abstract: An improved self-centering clutch thrust bearing is described which includes a rolling bearing assembly and a sleeve bearing. The sleeve bearing and rolling bearing assembly each include radially extending flanges and means are provided for captivating the flanges in an axial direction while allowing limited play in a radial direction. An annular collar and an annular disc are also provided and are positioned for enabling a limited relative motion in a radial direction between the bearing assembly and the sleeve bearing.