Abstract: A drawn cup roller bearing includes: an outer ring including a raceway surface; a first rib formed at one end of the outer ring by being bent substantially perpendicular to the raceway surface; a second rib formed at the other end of the outer ring by being bent inwardly so as to be substantially parallel to the raceway surface; a cage including pockets for holding rollers, respectively; and an annular projection stopper which is projected radially outwardly and provided over an entire outer circumference at a pocket side position of an outer circumferential surface of the cage. An end surface of the cage abuts against a part of the first rib and the annular projection stopper is interposed between an end surface of the second rib and the rollers in a state that the cage is assembled into the outer ring.

Abstract: A cage for rolling bodies of a rolling bearing, which has a first side ring, a second side ring axially spaced from the first side ring, and at least two webs, which connect the first side ring to the second side ring and among each other form a pocket for one of the rolling bodies. At least one of the webs has a first web part disposed at the first side ring and a second web part disposed at the second side ring, and a center web part offset with respect to the first and second web parts. The cage is configured such that it can withstand mechanical stresses via a support element which is provided and which supports the first web part and the second web part and connects the two side rings.

Abstract: A double roller bearing which has an outer and inner bearing ring and ball rollers, which have lateral faces and are arranged next to each other in rows, arranged between the bearing rings. The rollers roll in raceways incorporated into the inner face of the outer bearing ring and outer face of the inner bearing ring. The raceways run in parallel and have pressure angle axes that are pitched at a pressure angle relative to a bearing radial axis. The rollers have a distance relative to each other which excludes mutual frictional contacts. For this purpose, the distance of the pressure angle axes of the raceways is enlarged and both rows of rollers are guided in separate bearing cages, while the raceway of the rollers of the row with the larger reference circle arranged on the inner bearing ring has a one-sided axial extension using the distance.

Abstract: An end portion of a pin 2 rotatably supporting a rolling body 1 is fitted in a pin-receiving hole 4 formed in an annular side plate 3. The pin-receiving hole 4 has interference in a range from 5 to 40 ?m between itself and the outer diameter of the pin 2. The end portion of the pin 2 pressed in the pin-receiving hole 4 with 5-40 ?m interference is welded to the annular side plate 3.

Abstract: A bearing assembly includes at least one outer ring and an inner ring unit having at least two inner rings, each having a central bore. A supporting element extends through the central bores. Roller bodies are rotatably disposed between the at least one outer ring and each of the inner rings. Radially-outer bores extend through the inner ring unit or the supporting element in the axial direction and each receives a screw or bolt for affixing the bearing assembly on a bearing carrier. The radially-outer bores are spaced from the symmetry axis of the bearing assembly. At least one lubrication conduit is defined on or in at least one of the inner rings and is configured to communicate liquid lubricant to the roller bodies.

Abstract: A rolling bearing with a brake mechanism, in particular a rotary connection, which has an outer bearing ring and an inner bearing ring, between which rolling bodies roll on assigned tracks. A brake element, which is connected displaceably to one of the bearing rings, is pressed against an opposite surface connected to the associated other bearing ring in order to produce a braking effect by frictional engagement and the frictional engagement can be cancelled by means of an electromagnet. The brake element is arranged as an integral bearing component inside one of the bearing rings and is pressed against the opposite surface by means of a spring force. The spring force is variably settable and the electromagnet includes one of the bearing rings as a soft-iron core and a coil enclosing the latter.

Abstract: A bearing for a connecting rod includes a retainer having a plurality of pockets spaced about a circumference of the retainer, a first end that defines a first flange, and a second end that defines a second flange opposite the first flange. The bearing also includes a plurality of radial bearing elements that supports a radial load, and each of the plurality of radial bearing elements is positioned in one of the plurality of pockets. A first plurality of axial bearing elements is positioned on the first flange and receives at least a portion of an axial load, and a second plurality of axial bearing elements is positioned on the second flange and receives at least a portion of the axial load.

Abstract: A method for filling a ball roller bearing with roll bodies, and a ball roller bearing, which is filled according to the method and has an outer and an inner bearing ring and a plurality of ball rollers, which are arranged between these bearing rings and have two side surfaces, which are flattened symmetrically from a basic spherical shape, parallel to one another and held at uniform distances from one another by a bearing cage. The ball rollers roll in groove-shaped raceways recessed in the inner face of the outer bearing ring and the outer face of the inner bearing ring. The ball roller bearing is filled by an eccentric axial, tilting fitting of the ball rollers through the interval between the bearing rings in the form, that the filled ball roller bearing is filled to the extent of about 94% and has a service life of up to 253%.

Abstract: A segment rolling bearing for an axial hydraulic pump, which can be integrated in a simple way. The segment rolling bearing has an outer raceway carrier, an inner raceway carrier, a plurality of rolling bodies, and a cage. The rolling bodies are arranged in the cage such that they roll between the outer raceway carrier and the inner raceway carrier in such a way that the outer raceway carrier can be pivoted about a common pivot axis with respect to the inner raceway carrier. The cage is connected to the inner and/or to the outer raceway carrier directly and captively in at least one connecting region, at least in the radial direction with respect to the common pivot axis.

Abstract: In the present cage, both pillar portions which face each other in a circumferential direction of a pocket have a plurality of bent portions which are alternately bent in a width direction, and each bent portion is provided with roller stopping portions protruding into the pocket. The bent portions are formed in a curved cross-sectional shape. Tip portions of the bent portions in the thickness direction of the cage are formed in a cross-sectional shape that becomes narrower toward the tips, and the tip portions are drawn in a state where they protrude into the pocket by plastic deformation working, thereby forming the roller stopping portions.

Abstract: A vehicle wheel bearing apparatus with a back-to-back double row tapered roller bearing has an outer member integrally with a body mounting flange and double row outer raceway surfaces tapered open respectively axially inward and outward. An inner member include a wheel hub and an inner ring or an outer joint member of a constant velocity universal joint. The wheel hub has a wheel mounting flange and one inner raceway surface arranged oppositely to one of the double row outer raceway surfaces and a cylindrical portion. The inner ring or the outer joint member of a constant velocity universal joint are press fit onto the cylindrical portion and include the other inner raceway surface arranged opposite to the other raceway surface of the double row outer raceway surfaces. Double row tapered rollers are freely rollably held between the outer and inner raceway surfaces by cages. Seals are arranged in annular openings formed by the outer and inner members. The cages are formed of synthetic resin.

Abstract: A bearing cage defines an overall axial length and includes a first end portion defining a first contact surface extending at a radially-outermost diameter of the bearing cage a first axial contact length, and a second end portion spaced a distance from the first end portion and defining a second contact surface extending at the radially-outermost diameter of the bearing cage a second axial contact length. The bearing cage further includes a plurality of spanning members extending between the first and second end portions to define a spanning member axial contact length defined at the radially-outermost diameter of the bearing cage by at least one contact pad. The bearing cage produces a total contact ratio, defined as the ratio of the sum total of the first axial contact length, the second axial contact length, and the spanning member axial contact length to the overall axial length, of at least 0.380.

Abstract: A rolling bearing assembly is for supporting an automotive vehicle steering shaft. The bearing assembly includes an outer ring, an inner ring, and a plurality of rolling elements disposed between the outer and the inner rings. A substantially flat retainer ring formed of an electrically conductive material is disposed within the inner ring. The retainer ring has axially elastic means with substantially axially projecting tongues, each tongue having a first surface portion configured to contact the inner ring and a second surface portion configured to contact a shaft or a tube.

Abstract: A cage for a rolling element bearing and a method for the production thereof. The cage has either an increased number of rolling elements or improved load-bearing capacity. The cage has a plurality of cage pockets for receiving the rolling elements, two side rings and a plurality of cross-ribs. The cross-ribs connect the side rings such that the cage pockets are formed. The cage pockets have milled-out or drilled-out corner regions, hereinafter collectively referred to as milled-out corner regions The corner regions, in a cutting plane perpendicular to the axis of rotation of the cage, have a radial milling course in the direction of the axis of rotations. The milling course, at least in a partial section, is configured at an incline with respect to a radial vector placed through the partial section and the axis of rotation, and is configured at an incline in the direction of the cage pocket.

Abstract: A bearing cage for large radial or axial roller bearings, which has two axially opposed, circular ring-shaped side washers held at a distance to each other by connecting elements, and roll-shaped rolling elements disposed between the side washers which have bolt-like elements on the faces thereof. A side washer on at least one side of the rolling element has radial recesses into which the bolt-like elements protrude. At least one securing element suitable for holding the bolt-like elements in the area of the radial recesses in the assembled state is provided. Shaped elements that can each be introduced at least partially into the radial recesses of the side washer are provided as the securing element. This construction achieves easy assembly and disassembly of the housing, allowing high flexibility in repairing a roller bearing so equipped.

Abstract: A radial needle bearing unit for supporting a shaft, which has an outer sleeve with at least one radially inwardly directed rim and a cage guiding hearing needles. For sealing purposes, a sealing element is disposed in an annular space delimited by the rim and the cage. The sealing element is an outwardly expanding sealing ring made of a polymer material resting radially outwardly against the inner lateral surface of the outer sleeve and radially inwardly against the lateral surface of the shaft so that a radial/radial seal is formed. The outer sleeve has, at least in one peripheral location, a holding lug which is formed by stamping or cutting and protrudes the lateral surface of the outer sleeve in a spring-loaded manner.

Abstract: A bearing unit which has a bearing shell with a projection which plastically deforms a bore of an adjacent component, on assembly, to produce a recess, thereby securing the bearing shell against being axially displaced in the direction of a bearing axis and from being twisted in the peripheral direction. The position and anti-twist locking effect is thus achieved by producing a recess in the adjacent component in which recess the projection is accommodated in a positive fit. The bearing unit is preferably used for bearing a starter shaft in a starter of a motor vehicle.

Abstract: A roller bearing for at least one set of roller bodies, which are disposed in an annular manner, the roller bearing having at least one track element with a track, on which the roller bodies are provided for rolling, includes the following features:—The track comprises a track base having a circular circumferential line,—the track element comprises, on each axial side of the track base, a shoulder or a rim for the roller bodies, each shoulder or rim having a circular circumferential line, and—the track element is formed such that, as viewed perpendicular to the planes defined by the circumferential lines, all center points of the three circumferential lines are different from each other.

Abstract: A cage includes cage pockets for retaining rollers at plural positions along a circumferential direction of an annular plate. A projection extending in thickness direction of the cage is formed at a central part in the circumferential direction on an inner face of the cage pocket to pivotally support the roller. The projection is provided with a chamfered portion (non-contact portion) formed by chamfering an edge in the thickness direction, and a flat portion (contact portion) that is brought into contact with an opposing central portion in the thickness direction on a roller end face of the roller seated in o the cage pocket. The flat portion has a flat length almost equivalent to a displaceable distance of the cage in the thickness direction thereof.

Abstract: A retaining element is disposed between two adjacent roller bodies of a roller bearing having an inner ring and an outer ring. The inner ring has an inner ring track with an inner radius and the outer ring has an outer ring track with an outer radius. Center points of the roller bodies are disposed along a pitch circle having a pitch circle radius. The retaining element extends radially inward from the pitch circle over at least 90% of the difference between the pitch circle radius and the inner radius and extends radially outward from the pitch circle over up to 50% of the difference between the outer radius and the pitch circle radius or vice versa.

Abstract: A roller bearing retainer 33 includes a plurality of column parts 15 each containing a column center part 16, a pair of column end parts 17, and a pair of column sloped parts 18 positioned between the column center part 16 and each of the pair of column end parts 17, and a pair of annular ring parts 14 connected to longitudinal one side and the other side ends of the plurality of column parts 15, and having a flange part 19 extending from a position connected to the column part 15 toward the radial inner side.

Abstract: A roller bearing retainer (13) includes a pair of annular ring parts (14) and a plurality of column parts (15) each including a column center part (16) provided in an axial center region so as to be positioned relatively on the radial inner side, a pair of column end parts (17) provided in axial end regions so as to be positioned relatively on the radial outer side, and a pair of column sloped parts (18) positioned between the column center part (16) and the pair of column end parts (17), and connecting the pair of ring parts to each other. A thickness of each part of the column center part, the pair of column end parts, and the pair of column sloped parts is smaller than a thickness of a boundary part between the adjacent parts.

Abstract: In a rolling bearing cage, adjacent cage bar portions on both sides of each pocket have protrusions protruding toward the pocket and a radially outer side and retaining a rolling element, accommodated in the pocket, from the radially outer side, a side surface of each cage bar portion and the corresponding protrusion, facing the pocket, has a guide surface slidably guiding the rolling element, the guide surface includes a first circular arc surface having a concave shape corresponding to an outer peripheral surface of each rolling element, and a side surface of each protrusion, facing the pocket, has a second circular arc surface having a convex shape smoothly continuous with a radially outer side of the first circular arc surface and an introducing surface smoothly continuous with a radially outer side of the second circular arc surface and inclined to a side opposite to the pocket toward a distal end of the protrusion.

Abstract: The invention comprises a bearing (4) and its methods for mounting, dismounting and adjusting a bearing clearance. The bearing (4) comprises an outer ring (6), rolling elements (5) and a two-part inner ring (A). The two-part inner ring (A) comprises a first part (1) having a radially outer surface (11) and an inner bore (12). Furthermore, the two-part inner ring (A) comprises a second part (2) having a radially inner surface (21) and at least one raceway (22) for rolling elements. The radially outer surface (11) of the first part (1) essentially matches the radially inner surface (21) of the second part (2). A cavity (3), which in use acts as a pressure chamber, is located between the first and second parts (1, 2). When pressurizing the cavity (3), a relative axial movement between the first and second parts (1, 2) is accomplished.

Abstract: This invention improves a rolling bearing fitted to a shaft supporting section of a roller to realize an oscillation roller. A rolling bearing to be fitted to one of the shaft supporting sections of a roller comprises a collared inner ring and a collared outer ring and a plurality of cylindrical rolls arranged between the inner ring and the outer ring as rolling members and the transversal distance of the surface of the inner ring and/or that of the surface of the outer ring facing the raceway surfaces of the cylindrical rolls is made greater than the axial length of the cylindrical rolls to make the inner ring and/or the outer ring, whichever appropriate, of the rolling bearing axially movable so as to allow the roller to oscillate. As the roller moves axially, the inner ring, the outer ring or the cylindrical rolls moves axially.

Abstract: The invention provides a sealing device, a rolling bearing and a rolling bearing for a wheel, in which a torque can be reduced, and also the air and lubricant are less liable to escape from the interior of the bearing to the exterior of the bearing, and the air and foreign matters are less liable to intrude into the bearing from the exterior of the bearing. A bottom 73 of an axial concave portion in a surface of an elastic member 51 forming a radial lip 70, facing away from a flange portion in an axial direction overlaps an end face 77 of a radially-extending portion 61 of a core metal member 50, facing a tubular portion 65, in a radial direction. A bottom 81 of a radial concave portion of the elastic member 51 forming the radial lip 70, facing the tubular portion 65 of a slinger 52 is spaced from the end face 77 of the core metal member 50 toward a flange portion 66 in the axial direction.

Abstract: A tapered roller bearing has an increased load capacity and has a decreased maximum face pressure on the raceway surfaces without lowering the rigidity of the cage. The tapered roller bearing includes an inner ring, an outer ring, multiple tapered rollers rollably disposed between the inner ring 2 and the outer ring 3, and a cage for holding the tapered rollers at predetermined circumferential intervals, wherein the roller coefficient ? thereof is larger than 0.94. Herein, ?=(the number of the rollers×the average diameter of the rollers)/(?×PCD).

Abstract: The invention relates to a roller bearing, with an inner running ring, an outer running ring, several roller bodies arranged between the running rings and guided in a bearing cage, whereby the bearing cage has axially aligned cage pins evenly distributed around the circumference, each fixed at one end to a cage ring on each of which a roller body is arranged to rotate on a central bearing drilling. According to the invention, the operating properties of the roller bearing may be improved, whereby the roller cage is provided at each cage pin with at least one passive positioning element, by means of which the offset of the corresponding roller body may be altered by means of a temperature-dependent change of shape of the positioning element.

Abstract: A connecting arrangement (10) for connecting a mowing knife to a mowing knife drive journal (12) has an annularly configured connecting element (16), a bearing arrangement (18) receivable in the connecting element (16), for mounting of the connecting element (16) on a mowing knife drive journal (12), and a mowing knife carrier (14) attachable to the connecting element (16).

Abstract: A concave surface 60 is formed in an outer peripheral surface of each of pillar portions 26 of a cage 40. A plurality of recesses 42, 43, 52 and 53 are formed in outer peripheral surfaces of annular portions 24 and 25 of the cage 40. There are provided passageways 46, 47, 56 and 57 communicating respectively with the recesses 42, 43, 52 and 53. An axially-outer end of each of the passageways 46, 47, 56 and 57 is open to an axial inner end face of the annular portion 24, 25 or to the concave surface 60 of the pillar portion 26.

Abstract: A roller bearing utilizing a roller retainer, which has an excellent assemblability in the sense that the assembly line can be automated and which eliminates various problems inherent in the full complement roller bearing The roller bearing includes an outer race having a raceway, a plurality of rollers held in rolling contact with the raceway, and a ring-shaped roller retainer having a plurality of pockets, each rollingly receiving the respective roller, spacedly defined therein in a direction circumferentially thereof to form a ladder-like structure. The roller retainer has a plurality of slits that are spacedly defined in a direction circumferential thereof so as to extend from one axial end or the other axial end of the roller retainer to a position adjacent the other axial end or one axial end.

Abstract: Provided is a taper roller bearing which is excellent in incorporating properties and has longer axial length of the rollers so as to increase load rating. The taper roller bearing includes an inner race (51), an outer race (52), taper rollers (53) arranged so as to be rollable between the inner and outer races, and a retainer (54) for retaining the taper rollers (53), in which a flange portion (56) is provided only on the radially larger side of the inner race (51). The retainer (54) includes a radially-larger-side annular portion (61), a radially-smaller-side annular portion (62), and brace portions (63) for coupling the annular portions. The radially-larger-side annular portion (61) includes a hook portion (65). The hook portion (65) effects hooking so that the flange portion (56) of the inner race (51) is maintained in an assembled state. In a neutral state, the hook portion is kept out of contact with the flange portion (56).

Abstract: A tapered roller bearing (1) comprises an inner ring (2), an outer ring (3), a plurality of tapered rollers (4) rollably disposed between the inner and outer rings (2, 3) and a cage (5) for holding the tapered rollers (4) at predetermined circumferential intervals, wherein (the circumferential length on the PCD)?(roller diameter×the number of rollers)<roller diameter. Further, the tapered rollers (4) are uniformly disposed such that the distance between rollers on the PCD is less than (the roller diameter/the number of rollers).

Abstract: Metal cage for roller bearings, comprising two cage side parts, between which the rollers are held, wherein a plurality of holding elements which permanently connect the cage side parts to one another are arranged essentially parallel to the rotational axis of the rollers which are held between two holding elements, are not rotatably mounted on the cage side parts and are spaced apart from the holding elements.

Abstract: A rolling bearing device includes: an outer ring that has outer ring raceway grooves formed on an inner peripheral surface of the outer ring and a counter bore portion that is provided on an outer side of the outer ring raceway grooves in an axial direction; an inner ring member that has inner ring raceway grooves formed on an outer peripheral surface of the inner ring member; and a plurality of rolling elements that are interposed between the outer ring raceway grooves and the inner ring raceway grooves so as to freely roll and that are in contact with the inner ring raceway grooves of the inner ring member and the outer ring raceway grooves of the outer ring at a predetermined contact angle. A lubricant reservoir portion that stores lubricant is formed at a portion in the outer ring raceway grooves adjacent to the counter bore portion.

Abstract: It is an object of the present invention to provide a rolling bearing in which a film formed on a surface of a retainer is difficult to peel or a metal component is difficult to dissolve even when the rolling bearing is used in environment where the rolling bearing contacts lubricating oil containing sulfur-based additives. A rolling bearing (1) having a plurality of rolling elements (3) and a retainer (2) retaining the rolling elements (3) is used in environment in which the rolling bearing contacts lubricating oil containing sulfur-based additives. A metal film difficult to peel or dissolve in the environment is formed on a surface of the retainer (2). The metal film is a copper alloy film and particularly consists of a copper-tin alloy plated film.

Abstract: A roller bearing cage is made of a resin and has a tapered tubular shape as a whole. In the roller bearing cage, tapered rollers are forcibly fitted to pockets while elastically deforming pillar portions at a small-diameter annular portion side. A stress alleviating portion is provided on at least an outer circumferential side of an end of the pillar portion at the small-diameter annular portion side so that a portion of the pillar portion from a crossing portion between the pillar portion and the small-diameter annular portion to a side of the large-diameter annular portion is linearly cut, thereby alleviating the stress occurring in the pillar portion when the tapered roller is forcibly fitted to the pocket.

Abstract: A bearing structure, for example of a needle roller bearing, has an outer surface defined in part by a composition comprising a first polymeric material having a Rockwell hardness (m scale) in the range 80 to 130. Preferred materials are polyaryletherketones, for example polyetheretherketone.

Abstract: To provide a cage for a rolling bearing in which the rolling bearing is lubricated, for example, by a combination of oil bath lubrication and a forced-feed oiling pump, and even when the forced-feed oiling pump is stopped, a defective lubrication can be prevented, and also to provide a bearing for wind power generation which is provided with this cage. Lubricating oil sumps 24 are provided at a larger-diameter ring 21 of a cage 14. Each lubricating oil sump 24 is provided between a tapered roller 13 and a tapered roller 13 so as not to abut with the tapered roller 13. With this arrangement, when the lubricating oil sump 24 is located in lubricating oil stored at a lower portion of the bearing, the lubricating oil is held in the lubricating oil sump, and in accordance with subsequent rotation, the lubricating oil held in the lubricating oil sump 24 is allowed to drop.

Abstract: A multi-part axial cage for a large diameter roller bearing, which has a metal strip which is connected to plastic cage windows. The metal strip is configured as a washer-ring-type flat cage and each cage window has a sealing element on the edge lying opposite the guiding edge. The element covering an axial gap is formed between the races of the roller bearing. The sealing elements of the individual cage windows overlap around the circumference.

Abstract: A rolling bearing which has a braking device, particularly a rotational connection, with an outer bearing race and an inner bearing race between which rolling bodies are in rolling motion on associated tracks. In order to produce a braking effect using frictional engagement, a displaceable braking element connected to one of the bearing races is pressed against a counter surface connected to the associated other bearing race and the frictional engagement may be removed with the aid of an electromagnet. The braking element is disposed as an integral bearing component inside one of the bearing races and is pressed against the counter surface by spring force, and the electromagnet encompasses one of the bearing races as the soft iron core and a coil surrounding the soft iron core.

Abstract: A cage for antifriction bearings with rollers, which has a first lateral edge, a second lateral edge, webs, and pockets, which are adjacent to one another along the periphery and which serve to accommodate rollers. The webs and the lateral edges are formed together as a single piece, and the flanks have a finished profile-milled contour. The finished contour is a negative reproduction of a positive outer cutting contour of one profiling cutter.

Abstract: The invention relates to a rolling element bearing comprising a cage with cage pockets for guiding rolling elements which are guided in the cage pockets with an axial play at least in the axial direction of the rolling element bearing, thereby defining an axial cage pocket clearance. The invention is characterized in that the cage pocket clearance in a plurality of cage pockets ranges between 0.07 millimeter and 0.17 millimeter.

Abstract: A bearing comprises at least one inner ring and at least one outer ring. At least a part of the surfaces of the inner ring and/or the outer ring is coated with a layer consisting of or containing fullerene-like carbon nitride (FL-CNx), and wherein an inter-layer of chromium (Cr) or aluminium (Al) or molybdenum (Mo) or titanium (Ti) or tungsten (W) or a diamond-like coating (DLC) or a metal-mix diamond-like coating (Me-DLC) is arranged between the surface of the inner ring and/or the outer ring and the layer.

Abstract: A retainer comprises a roller retaining click which is bent from an inner diameter edge of a rib portion toward the inside in an axial direction and extends so as to protrude and positioned between adjacent rollers. A part of the retainer other than the roller retaining click is hardened by high-frequency quenching and high-frequency tempering.

Abstract: A tapered roller bearing comprises an outer ring (32), an inner ring (33), a plurality of tapered rollers (34) arranged between the outer ring (32) and the inner ring (33), and a plurality of retainer segments (11a) having pockets for holding the tapered rollers (34) and arranged so as to be continuously lined with each other in a circumferential direction between the outer ring (32) and the inner ring (33). Here, the tapered roller (34) is arranged between two adjacent retainer segments (11b) and (11c) except for between the first retainer segment (11a) and the last retainer segment lined continuously with each other in the circumferential direction.

Abstract: A cage for a roller bearing comprises a base body with a plurality of pockets for the reception of the roller elements of the roller bearing. At least a part of the surface of the base body is coated with a layer consisting of or containing fullerene-like carbon nitride (FL-CNx), wherein an inter-layer of chromium (Cr) or aluminium (Al) or molybdenum (Mo) or titanium (Ti) or tungsten (W) or a diamond-like coating (DLC) or a metal-mix diamond-like coating (Me-DLC) is arranged between the surfaces of the base body and the layer consisting of or containing fullerene-like carbon nitride.

Abstract: A retainer comprises a roller retaining click which is bent from an inner diameter edge of a rib portion toward the inside in an axial direction and extends so as to protrude and positioned between adjacent rollers. A part of the retainer other than the roller retaining click is hardened by high-frequency quenching and high-frequency tempering.

Abstract: The invention relates to a sealing roller bearing, in particular, a ball bearing for support and working roller bearings on roller stands, comprising an axially multi-part outer bearing ring and an axially multipart inner bearing ring and a number of rolling bodies rolling on the running tracks in four rows between the bearing rings. The rolling bodies are retained in each row at an equal separation from each other in the circumferential direction by means of a bearing cage and the bearing chamber, formed between the outer bearing ring and the inner bearing ring, is sealed at both axial ends against the ingress of fluids and dirt by annular seals.

Abstract: A multilayer film 21 is formed by layering layers whose adjoining layers are made of mutually different metals or alloys by an electroplating process on a surface of a metallic annular main body part 20 that has a pocket to accommodate a ball by holding the ball from both sides in the axial direction.