Abstract: A bearing structure includes: a shaft provided with a turbine impeller; a pair of rolling bearings accommodated in a bearing hole and each including: an inner ring provided to the shaft; and an outer ring having a damper portion formed on an outer periphery of the outer ring; an opposing surface opposed to, from a turbine impeller side, a lateral surface of the outer ring of the rolling bearing provided on the turbine impeller side; and a first oil supply groove formed in the opposing surface and opposed to at least the damper portion and the lateral surface of the outer ring.

Abstract: A ball joint including a ball stud which has a spherical portion, two bearing shells that are arranged on the spherical portion such that there is a small gap between the two bearing shells, and a housing that is made from plastic in one piece and encloses the two bearing shells such that the two bearing shells are urged against the spherical portion by the housing.

Abstract: A roller bearing (2) having a sleeve (5), by which a rolling element raceway is formed, and a lid (1) held to the sleeve by a snap-on connection, wherein the lid has securing projections (17), which are directed outward, which protrude beyond the sleeve (5) in the radial direction and are provided for axially fixing the lid in a housing (4) surrounding the sleeve.

Abstract: A greasing device for feeding grease to a greasing requiring part accommodated inside a housing, the greasing device including: a first jig; a second jig; and a greasing portion, wherein the first jig has a base portion that abuts on the housing, and an insertion hole that penetrates the base portion, the second jig has an insertion portion that is inserted into the insertion hole of the first jig, and a stopper portion that comes into abutment on the base portion of the first jig when the insertion portion is inserted into the insertion hole, and the greasing portion feeds grease to the greasing requiring part while being positioned by the first jig and the second jig.

Abstract: Provided is a double-row self-aligning roller bearing including: an inner ring; an outer ring having a spherical raceway surface; and rollers arranged in two rows and interposed between the inner ring and the outer ring, wherein a ratio of a contact angle ?1 in one row to a contact angle ?2 in the other row falls within a range of 0.25??1/?2?0.5, and a ratio of distance B1 in a bearing width direction from an end face of the bearing on a side of the one of the rows to an intersection of two lines of action defining the contact angles of the two rows, relative to a distance B2 in the bearing width direction from an end face of the bearing on a side of the other of the rows to the intersection falls within a range of 0.5?B1/B2?0.6.

Abstract: A bearing assembly may include an integral sensor module retained within a bore in the bearing housing. The sensor module includes at least one strain gauge oriented to sense a compressive load acting on the bearing housing. The sensor module may be retained within the bore under an axial compressive load. The sensor module may include a power source and a wired or wireless communications module for transmitting information indicative of the compressive load to an external instrument or other system.

Abstract: A holder of a tapered roller bearing is made of a resin, has a first gap between an axially inner end surface of a small-diameter-side annular part and small-diameter-side end surfaces of tapered rollers, has a second gap between an axially inner end surface of a large-diameter-side annular part and large-diameter-side end surfaces of the tapered rollers, and is provided to be capable of moving within a prescribed range along the axial direction. The surface of the axially inner end surface of the large-diameter-side annular part is rough, the large-diameter-side annular part is provided with one or more grooves which are oil-holding parts that hold the lubricating oil, and ends of the grooves are positioned to be capable of coming into contact with the tapered rollers.

Abstract: A bearing system includes a bearing housing that includes a sleeve and a mounting structure for connecting the bearing system to a compressor housing. The sleeve has a radial inner surface that defines a cylindrical bore, and includes a locking feature located along the radial inner surface. The mounting structure is located radially outward from the sleeve. The bearing system also includes a foil bearing assembly positioned within the cylindrical bore. The foil bearing assembly includes an outer foil, an inner foil, and a bump foil positioned between the outer foil and the inner foil. At least one of the outer foil and the inner foil includes a bearing retention feature cooperatively engaged with the locking feature to maintain the foil bearing assembly within the bearing housing at a fixed rotational position.

Abstract: An abnormality detection device for a rolling bearing includes a filter that allows passage of lubricating oil, while preventing passage of metal pieces, from the bearing space between the outer ring and the inner ring of the rolling bearing to the exterior of the bearing space. The device further includes an electrical circuit including a pair of permanent magnets mounted, as a pair of electrodes, to the filter so as to be spaced apart from each other, and electrical lines extending from the respective electrodes to a power source. A state detector detects a change in electrical output from the electrical circuit when metal pieces adhere between the pair of permanent magnets, thereby detecting the state of the metal pieces contained in the lubricating oil.

Abstract: A bearing providing a first ring and a second ring capable of rotating concentrically relative to one another, at least one annular groove being formed on the second ring and oriented towards the first ring. The bearing further providing at least one target element engaged inside the groove of the second ring while being freely gliding inside the groove in the circumferential direction, the target element protruding into a hole formed on the first ring so that the target element is blocked in rotation by the first ring when the second ring rotates and the first ring is fixed, and at least one sensor mounted on the first ring and facing the target element to detect axial positions of the target element.

Abstract: A cage for a tapered roller bearing includes a large-diameter-side annular portion circumferentially extending along large end surfaces of a plurality of tapered rollers; a small-diameter-side annular portion circumferentially extending along small end surfaces of the tapered rollers; and a plurality of pillars coupling together the large-diameter-side annular portion and the small-diameter-side annular portion. The large-diameter-side annular portion has large-diameter-side pocket surfaces opposed to the large end surfaces of the respective tapered rollers. The large-diameter-side pocket surfaces include oil retaining holes including blind holes, and being configured to receive and retain lubricating oil by capillary action.

Abstract: In the tapered roller bearing, at least any one of an outer ring, an inner ring, and a plurality of tapered rollers includes a nitrogen enriched layer. An oil retaining hole is provided in a larger annular portion of a cage. A value of a ratio R/RBASE is not smaller than 0.75 and not greater than 0.87 where R represents a set radius of curvature of a larger end face of the tapered roller and RBASE represents a distance from a point which is an apex of a cone angle of the tapered roller to a larger flange surface of the inner ring. A ratio Rprocess/R is than not lower 0.5 where Rprocess represents an actual radius of curvature after grinding of the larger end face of the tapered roller and R represents a set radius of curvature.

Abstract: A bearing bushing (1) and to a method for manufacturing a bearing bushing are provided. The bearing bushing includes a wire article (2) formed from knitted wire mesh or knitted wire fabric (6) and compressed into a dimensionally stable compressed product (3). The bearing bushing can be provided for supporting a throttle valve used in high-temperature applications. The wire article (2) is formed from a stainless steel. Existing voids (10) of the compressed product (3) are filled with solder (4).

Abstract: A multi-row rolling bearing having an inner ring and an outer ring and at least two axial rolling bearing rows for supporting axial forces between the inner and outer ring, wherein the two axial rolling bearing rows are seated on opposite axial sides of a radially projecting annular lug which engages in an annular groove and which is supported by means of the axial rolling bearing rows against the annular groove. According to the invention, at least one of the axial rolling bearing rows is formed as an angular-contact roller bearing with an angle of inclination of greater than 0° to at most 45°.

Abstract: A split double row spherical roller bearing comprising an outer ring including an outer race, an inner ring within the outer ring including an inner race, a cage mounted between the inner and outer races, the cage mounting rollers which engage the inner and outer races, the inner ring, inner race, outer ring, outer race, and cage each comprising two generally semicircular parts engageable together to form a circular component via respective radially extending contact surfaces, and characterized in that the contact surfaces of at least the outer ring comprise a saw-tooth arrangement in which the angle of each saw tooth joint is between 25 and 40 degrees.

Abstract: A thrust bearing includes a first axial end washer defining thereon a first race, a second axial end washer defining thereon a second race, a one-piece, radially-inner washer having a first axial end engaged with the first axial end washer and having a second axial end defining thereon a third race, and a one-piece, radially-outer washer having a first axial end defining thereon a fourth race and having a second axial end engaged with the second axial end washer. A first set of tapered rolling elements is supported between the first race and the fourth race and a second set of tapered rolling elements is supported between the second race and the third race. The first and second sets of tapered rolling elements are both axially and radially offset from one another.

Abstract: A bearing including a bearing sidewall including a first circumferential end including an apex region, and a second circumferential end including a nadir region, where the first circumferential end and the second circumferential end are adapted to contact each other to form an interface, where at least one of the apex region or the nadir region includes a void to prevent contact between the apex region of the first circumferential end and the nadir region of the second circumferential end, where the bearing sidewall includes a substrate and a low friction material, and where at least one of the first circumferential end or the second circumferential end comprises an end face that is free of low friction material.

Abstract: A sealing device and a sealing arrangement which creates an improved outer seal in front of the sealing lips, for example, wherein the outer seal can be used in a confined space and affords an enhanced sealing effect for a low coefficient of friction and/or ease of fitting

Abstract: A turbocharger includes a shaft extending between a first shaft end coupled to a turbine wheel, and a second shaft end coupled to a compressor wheel. The turbocharger also includes a bearing housing assembly including a bearing housing presenting an interior surface having a first diameter. The interior surface defines a bearing housing interior. A bushing is disposed in the bearing housing interior, extends between first and second bushing ends, is coupled to the shaft, and includes a first anti-rotation component. A retention shoulder extends away from the interior surface and radially inward proximate to one of the first and second bushing ends, and presents an inner surface having a second diameter less than the first diameter to limit axial movement of the bushing. The retention shoulder includes a second anti-rotation component engagable with the first anti-rotation component to limit rotational movement between the bushing and the bearing housing.

Abstract: A rolling element for a roller bearing. The rolling element may include a metal substrate having a surface layer. A portion of the surface layer may include a hardened nitrided layer. A diamond-like carbon (DLC) coating may be bonded directly on at least a portion of the hardened nitrided layer.