Abstract: A comb-shaped resin retainer includes an annular section and a plurality of pillar sections which protrude to one side in the axial direction from one side of the annular section. A gap between the pillar sections, adjacent to each other in the circumferential direction serves as a pocket for retaining a cylindrical roller. A side face of the pillar section which serves as the inner face of the pocket is formed in a recessed shape. Each pillar section is tilted so as to become closer to the retainer axial center as the pillar section extends toward the tip of the pillar section. A flat portion is provided on the side face of the pillar section which serves as the inner face of the pocket. The flat portion continues axially from the tip portion of the pillar section to the base end portion thereof.

Abstract: A bearing system having a shaft which has at least one bearing journal, a needle bearing having a cage (2) and needle rollers (3) accommodated therein being mountable on the bearing journal, and having an outer ring (1) which is inserted into a machine housing. According to the invention, the cage (2), at least on one side axially next to the needle rollers (3), has a mounting bevel (8) or beveled elements, the radial extension of which decreases with increasing distance from the needle rollers (3).

Abstract: Provided are a retainer for a tapered roller bearing, which can be adapted for various designs without imposing limitations on a design for dimensions of hook portions, a method of manufacturing this retainer, and a tapered roller bearing using this retainer. The retainer for a tapered roller comprises: a radially-smaller-side ring portion (24b); a radially-larger-side ring portion (24a); and a plurality of brace portions (24c) arranged between the radially-smaller-side ring portion and the radially-larger-side ring portion. The retainer is made of a resin and retains tapered rollers (23) in pockets (24d) formed between the brace portions (24c). A hook portion (36) is formed on a radially larger side, and is engaged with a radially larger side of an inner race (21). An outer diameter of each of the pockets (24d) on the radially-smaller-side ring portion side thereof (end diameter of the pocket (24d) on the radially smaller side thereof) is set to be larger than an inner diameter of the hook portion (36).

Abstract: A resin snap cage 4 comprises a resin-made circular main part 10, a plurality of pockets 11 provided in one axial end face of the circular main part 10, and a circular reinforcing member 12 installed concentrically at the other end face in an axial direction of the circular main part 10. While this reinforcing member 12 is circular along the circular main part 10, a sectional shape in a plane parallel to an axial direction is a rectangle. The reinforcing member 12 is embedded in a recessed portion formed at the other end face in an axial direction of the circular main part 10 to be integrated, an outside diameter surface 12a, an inside diameter surface 12b, and a pocket-side surface 12c of the reinforcing member 12 are covered with the circular main part 10, and a surface 12d thereof opposite to the pocket side is exposed.

Abstract: An object of the present invention is to prevent breakup of segments which constitute a split type retainer for a tapered roller bearing, when the tapered roller bearing is being mounted on target equipment, thereby improving operability in the mounting process. A segment for a tapered roller bearing is provided with a predetermined number of posts between a small-diameter-side end fringe which constitutes a small-diameter-side circumferential edge of a split type retainer and a large-diameter-side end fringe which constitutes a large-diameter-side circumferential edge thereof. Pockets are formed between the posts. At least the large-diameter-side end fringe, out of the small-diameter-side end fringe and the large-diameter-side end fringe, is provided with a large-diameter-side engagement piece.

Abstract: A rolling bearing cage, which has two annular elements and cage crossbars connecting the annular elements to each other so as to form pockets for receiving rolling elements arranged between every two adjacent cage crossbars and the annular elements. The cage crossbars have an elastic configuration. Also, a rolling bearing is disclosed that has a rolling bearing cage.

Abstract: A tapered roller bearing is capable of suppressing the occurrence of fretting without shortening its fatigue life. The tapered roller bearing includes an outer race, an inner race, a plurality of taper rollers interposed between the outer race and the inner race, and a retainer for retaining the tapered rollers. The tapered roller bearing is used in an idler portion of an automobile transmission, which is interchanged between an idle state in which the outer race idles with respect to the inner race and a shift state in which the outer race and the inner race are rotated synchronously with each other. A ratio of ?/??4.9 is established on a premise that an outer-race raceway surface angle is 2? and a roller angle is ?.

Abstract: A cage for a rolling bearing, which has a first cage side ring, and a plurality of bars that protrude from the first cage side ring and are disposed at a distance from each other so as to form pockets to receive rolling elements. The first cage side ring has an elastically deformable segment in the region of each pocket. The segment is formed as a multiple bridge disposed between two adjacent bars. Also, a rolling bearing which includes the cage is further disclosed.

Abstract: A taper roller bearing includes an inner race, an outer race, taper rollers arranged so as to be rollable between the inner and outer races, and a retainer for retaining the taper rollers, in which a flange portion is provided only on the radially larger side of the inner race. The retainer includes a radially-larger-side annular portion including a hook portion. The hook portion effects hooking so that the flange portion of the inner race is maintained in an assembled state. In a neutral state, the hook portion is kept out of contact with the flange portion. A guide surface portion for guiding the inner race to be incorporated is provided on a radially inner end portion of an outer surface of the hook portion.

Abstract: Roller bearing with a segmented cage for guiding the roller bodies, said cage comprising an inner ring on which a plurality of roller bodies can roll, and which can also roll on an outer ring which is concentric to the inner ring, a cage consisting of a plurality of webs which are distributed in a uniform manner over the periphery and which are aligned so as to be parallel to each other and to the longitudinal axis of the cage, and a plurality of lateral plates for joining the webs, two webs and two lateral faces being firmly connected to one another to form a cage segment, which forms a pocket for guiding a roller body and all cage segments are connected to one another in pairs to form an inherently closed cage.

Abstract: A method for producing a cage of a rolling bearing, for receiving a rolling body. The body of the cage is a plastic material that can be cross-linked by radiation, and is provided with rolling bodies later during the method. The body of the cage is fitted with the rolling bodies only once the structure of the cage has been exposed to the radiation. Also, a cage is disclosed for receiving rolling bodies of a rolling bearing, which has a body consisting of a plastic material.

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 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: 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 bearing assembly is provided having a roller bearing with an inner race fitted around the journal portion of an axle. An outer raceway combines with the inner raceway to receive roller elements. A backing ring is centered to the shaft fillet. Tapered roller elements are located between and contact the inner and outer raceways. A cage is comprised of an inner ring, and outer ring, and a plurality of pocket bars and support pocket bars extending between the inner and outer rings. The support pocket bars have an overall greater thickness than the pocket bars. The cage is a generally unitary structure comprised of a nylon resin material with a fiber fill.

Abstract: A tapered roller bearing (31a) has a plurality of retainer segments (11a, 11d) each having a pocket to house a tapered roller (34a), and arranged so as to be continuously lined with each other in a circumferential direction between an outer ring (32a) and an inner ring (33a). The retainer segment (11a, 11d) is formed of a resin containing a filler material to lower a thermal linear expansion coefficient. In addition, a clearance (39a) is provided between the first retainer segment (11a) and the last retainer segment (11d) after the plurality of retainer segments (11a, 11d) have been arranged in the circumferential direction without providing any clearance. Here a circumferential range (R) of the clearance (39a) is larger than 0.075% of a circumference of a circle passing through a center of the retainer segment (11a, 11d) and smaller than 0.12% thereof at room temperature.

Abstract: A rolling bearing (11) comprises a plurality of rollers, and retainer segments (15a) retaining the rollers and split along a split line extending in an axial direction. The retainer segment (15a) has a plurality of pillar parts (22a), (22b), (22c) and (22d) extending in the axial direction so as to form first pockets (23a) and (23c) and a second pocket (23b) for housing the rollers, and a connection part extending in a circumferential direction so as to connect the plurality of pillar parts (22a) to (22d).

Abstract: A tapered roller bearing includes: an inner ring; an outer ring; a plurality of tapered rollers which are rollably disposed between the inner ring and the outer ring; and a retainer which retains the tapered rollers at predetermined circumferential intervals. In this tapered roller bearing, a roller coefficient {?=(the number of rollers×average roller diameter) exceeds 0.94, a number of indentations having a micro recess-like shape are randomly provided at least on a surface of the tapered roller, a surface roughness parameter Ryni of the surface having the indentations falls within a range of 0.4 ?m?Ryni?1.0 ?m, and an Sk value is ?1.6 or less.

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 cage, rollers and solid lubricant are all formed integrally into a complete unitary molding with using difference in thermal expansion in a mold. Assembling the complete unitary molding into the race in the rolling-contact bearing is made easier. The complete unitary molding is made such that the rollers remain exposed partially at their rolling surfaces above the inside circular surface of the complete unitary molding while the solid lubricant on the outside circular surface of the complete unitary molding is squeezed out from between the rolling surfaces of the rollers and the inside circular surface of the outside mold upon molding operation, thereby getting the rolling surfaces of the rollers exposed partially. The mold is composed of an outside mold, an inside mold and an intermediate mold, which is made of a substance larger in thermal expansion than other substance for the outside and inside molds.

Abstract: To provide a roller bearing assembly, which can be assembled with a minimized number of assembling steps and without any drop-off preventing sleeve being employed and which can provide a large load bearing capacity, the roller bearing assembly includes an inner race 1 having a raceway surface 1a defined therein, a plurality of rollers 2, and a ring-shaped roller retainer 3 having a plurality of pockets 4 defined therein in a direction circumferentially thereof for accommodating therein the respective rollers 2 in a circular row. The roller retainer 3 also has pillars 5 each defined between the neighboring pockets 4. The roller retainer 3 is positioned on the inner race 1 with each of the pillars 5 thereof intervening between the neighboring rollers 2 to thereby retain the rollers 2 in position within the respective pockets 4 from a direction radially outwardly of the row of the rollers 2.

Abstract: A cage, rollers and solid lubricant are all formed integrally into a complete unitary molding with using difference in thermal expansion in a mold. Assembling the complete unitary molding into the race in the rolling-contact bearing is made easier. The complete unitary molding is made such that the rollers remain exposed partially at their rolling surfaces above the inside circular surface of the complete unitary molding while the solid lubricant on the outside circular surface of the complete unitary molding is squeezed out from between the rolling surfaces of the rollers and the inside circular surface of the outside mold upon molding operation, thereby getting the rolling surfaces of the rollers exposed partially. The mold is composed of an outside mold, an inside mold and an intermediate mold, which is made of a substance larger in thermal expansion than other substance for the outside and inside molds.

Abstract: A rolling bearing includes an inner ring having an outer surface, an outer ring having an inner surface, a plurality of rolling elements rotatably disposed between the inner ring and the outer ring, and a retainer for retaining the rolling elements. The retainer is made of a resin material and is positioned with respect to the inner surface of the outer ring or the outer surface of the inner ring. The retainer includes a pair of annular portions axially arranged in parallel and a columnar portion coupling the annular portions. Then, the rolling bearing satisfies the following expression: AI=LH3/dm≧0.025 in which H is a radial length of a section of the annular portion, L is an axial length of the same, and dm is PCD of the rolling element.

Abstract: A rolling bearing provided with measures to suppress a rise in temperature. The rolling bearing comprises inner and outer races, a plurality of rolling elements 16 interposed between the inner and outer races, and a cage for retaining the rolling elements 16. On the use conditions that the direction of load is stationary to the outer/inner race and rotational with respect to the inner/outer race of the two races, the cage 17 is guided for rotation with outer/inner regions of its pocket surfaces in contact with the rolling elements 16. It is also intended to facilitate satisfactory lubrication by means of grease and to enhance the durability and life of the bearing. For that purpose, a bearing 21 incorporated into a main motor is arranged with both end faces adjoining end members 24 and 25 that have grease pockets 22 and 23 formed therein, respectively.

Abstract: A metal window cage for a rolling bearing and supporting cylinder rollers. The cage having at least one ladder-shaped bent segment which is bent around to define the window cage. A joint is formed at adjacent cage segment ends which are interlocked in a dovetail shape lock at the segment ends. A connecting element connects the segment ends. The crosspieces at intervals along the cage segment and the connecting element at the joint are encapsulated by being molded over. Cylinder roller retaining clips are provided at the connecting element at the segment ends at the joint and also at the crosspieces between neighboring windows for cylinder rollers. The clips project radially inwardly to prevent the rollers from leaving the cage prior to installation of the cage and rollers in a bearing. The crosspieces and clips there are also molded over to retain them at the cage.

Abstract: A rolling bearing, having, for example, cylindrical rollers, is provided, between an inner ring and an outer ring, with a retaining structure for retaining the rollers. The retaining structure includes an annular retainer having a number of seats for click-in insertion of the rollers, and from an end edge of which projects a radially outer flange having a sliding surface cooperating in sliding manner with a radially inner surface of the outer ring of the bearing to support the annular retainer in a radially inner position with respect to the outer ring and so prevent the annular retainer from sliding against the rollers. The seats for the rollers each have a pair of axial projections for compensating any axial clearance between the rollers and the respective seats.

Abstract: A rolling bearing for use in a dental hand-piece which can withstand sterilizing temperatures ranging from 135-200 .degree. C., and which can be rotated at a speed of 300000 rpm or higher with a minimum amount of lubricant used. This rolling bearing is used in a hand-piece having a shaft to which a dental rotary cutting tool is detachably mounted, a turbine fixed to the shaft, and a passage for introducing compressed air for driving the turbine. The rolling bearing has a retainer formed by sintering a polyimide resin powder so that it has 5-20% by volume of mutually communicating pores and impregnating the sintered member thus formed with a fluorinated oil.

Abstract: A roller bearing has a slatted cage assembly that includes a lateral ring with axial webs to retain bearing rollers on the inside or on the outside diameter of the cage assembly. The slatted cage assembly is closed off by a cage cover mounted on the free axial ends of the webs. The slatted cage assembly prevents loss of rollers before and during assembly of when used with a full-complement roller bearing.

Abstract: A pocket cage of synthetic material for roller bearings including a plurality of rollers spaced circumferentially, consisting of side rings and ribs arranged between them, whose pocket-side working faces are adapted to the roller shape, each rib having a first section arranged in the region of the arc separating the rollers in the circumferential direction of the bearing, and a second section holding the rollers in the radial direction of the bearing, characterized in that the pockets are widened at least in the region of a side ring by reduction of the holding sections.

Abstract: A cage (1) for cylindrical rolling elements (5) comprising two side rings (2, 3) connected to each other by circumferentially uniformly spaced crossbars (4) so that receiving pockets (6) are formed for the rolling elements (5) is characterized in that opposing end surfaces (8) of the pockets (6) comprise projections (11) which extend inwards in axial direction and bear against end faces of the rolling elements (5) which prevents an axial offset between the rolling elements (5) and the cage (1) so that after insertion and suspension of the first rolling element (5), the cage (1) can be filled with the rest of the rolling elements (5) without their being damaged.

Abstract: The present invention provides a retainer made of synthetic resin for a rolling-contact element such as a roller of a rolling-contact bearing or a one-way clutch, which is used in a lubricating oil. The retainer comprises an aliphatic polyamide resin as a matrix and a hydrocarbon polymer having no oil resistance and good compatibility with the matrix, which is dispersed in the matrix. Examples of the thermoplastic hydrocarbon polymer include olefin polymer and styrene polymer.

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 overrunning clutch comprising two concentric machine components (1,2) rotatable relative to each other and having locking surfaces (13,14) formed on their mutually facing peripheral surfaces, and, arranged therebetween, a plastic cage (4) comprising end rings (15) connected to each other by crossbars (16), pockets (17) for locking elements (3) spring-urged against the locking surfaces (13,14) being formed between circumferentially adjacent crossbars (16), the plastic cage (4) further comprising at least one radial projection (19) which engages into a recess (20) of one of the machine components (2) to prevent rotation of the plastic cage (4) relative to this machine component (2), characterized in that the radial projection (19) is arranged on a crossbar (16).

Abstract: A plastic holder for a rolling bearing is made of linear-chain polyphenylene sulfide resin, preferably with glass fiber reinforcement.

Abstract: In a self-aligning roller bearing providing an outer race, an inner race, a plurality of barrel-shaped rollers, and a pair of cages, guide surfaces formed on outward flange portions of the cages for guiding the barrel-shaped rollers are caused to come closer to ends of the barrel-shaped rollers, so that the barrel-shaped rollers can be guided without fail even if an axial load is received. Therefore, the barrel-shaped rollers are prevented from being skewed, from increasing in torque required for rotating the barrel-shaped rollers, and from seizing up the barrel-shaped rollers.

Abstract: An anti-friction bearing assembly including coaxial inner and outer bearing race members, a plurality of cylindrical roller bearing elements between the inner and outer bearing race members, and a snap-in bearing cage for appropriately spacing the bearing elements apart. The bearing cage includes a pair of identically constructed, axially spaced apart bearing cage members each including an annular body portion, a plurality of axially extending and circumferentially spaced apart webs defining therebetween a plurality of bearing element receiving pockets, and a plurality of tab members each extending radially from one of the webs. The tab members are radially flexible to permit insertion of the corresponding cage member into the bearing assembly and thereafter snap back to an unflexed position to retain the corresponding bearing cage in the bearing assembly.

Abstract: A bearing cage for a roller bearing. The bearing cage comprising first and second annular end rims axially spaced along a common axis and cross bars connecting the end rims such that pockets are formed between the end rims and the cross bars for retaining the rollers. Axially outward surfaces of the end rims define the axial length of the bearing cage and include at least one recess for facilitating passage of lubricant to the rollers.

Abstract: A double-row spherical roller bearing comprises an inner race, an outer race, two retainers each molded of a synthetic resin, and double-rows of spherical rollers rotatably received in pockets of the retainers and arranged one after another in the equally spaced relationship in the circumferential direction. Each retainer is molded such that an annular portion on the large diameter side and an annular portion on the small diameter side are integrally jointed to each other with a plurality of retainer bars bridges therebetween. Each retainer bar comprises an inner portion located on the inner race side and an outer portion on the outer race side. Each side surface of the inner portion is defined by a part of the spherical surface extending around the spherical surface of each spherical roller. In addition, each side surface of the outer portion is defined by a first surface, a second surface and a third surface.

Abstract: The presetting device for tools has an anti-friction bearing (13, 15) and a bearing sleeve (13) with an inner wall surface and an outer wall surface, the bore of which is provided in order to receive a conically developed bearing pin (3), with the also conical inner wall surface. The anti-friction bearing is developed as a needle bearing (13, 15). The bearing sleeve (13) also has a conical outer wall surface which is seated in the conical wall surfaces of a bearing bushing (9) and which is itself developed as needle-bearing sleeve (13) bearing the needle rollers (15).

Abstract: Constant-velocity joints in tripod construction have an external joint component (1) in which are formed three circumferentially spaced axial guide tracks (2) with bearing surfaces opposite each other in the circumferential direction. An interior joint component (3) has three circumferentially spaced radial trunnions (4) which engage in the guide tracks (2). A roller unit (8) is on each of the trunnions (4) and is radially supported in the guide tracks (2). The roller units (8) are essentially held at constant angles in the guide tracks. The roller units (8) are, relative to the trunnions (4) and radially movable with angular mobility. The roller unit (8) are each mounted, free to rotate, on a roller carrier (6). The trunnions (4) have connected to their ends, spherical heads (5) which engage a radial internal recess of the roller carrier (6). A needle bearing (7) with a cage (9) is located between each roller carrier (6) and roller unit (8).

Abstract: Roller bearing cage, especially for cylindrical roller bearings or needle bearings, which presses the rolling elements elastically in the radial direction against a raceway to prevent rippling, characterized in that, at least at one point (6), the cage (1) has notches (8) proceeding from the end surfaces (10) and a connecting part (11), which is rigid in the peripheral direction and which is located between the notches; and in that, in the peripheral direction, a recess (9), extending approximately across the width of the cage, is provided on one or both sides next to notches (8), this recess forming the boundaries of elastic sections (12).

Abstract: Rolling bearing cages disclosed herein are prepared from compositions comprising an aromatic polyamide which comprises terephthalic acid constituent units, aromatic dicarboxylic acid constituent units other than terephthalic acid constituent units and straight-chain aliphatic alkylenediamine constituent units, and glass fibers, and can be easily incorporated into bearing races without damage, resultant bearings capable of being operated over a long period of time without deformation of said cages and deterioration of the lubricant oil.

Abstract: A cage for a large roller bearing that loosely surrounds and mechanically secures the rollers. It comprises, first, a strip (2) of metal with lateral and intermediate webs (4 & 5) that leave recesses (6) and, second, plastic windows (6) that fit into the associated recesses. The windows have collars (8) that rest against the surface of the strip. The object of the invention is to improve the cage to the extent that it can be securely positioned in the bearing system without slides. Each window (6) accordingly has a securing rim (10) on its collar (8) that overlaps the lateral web (4).

Abstract: A plastic part is molded of a plastic with an inner body of crystalline plastic and an outer surface layer of an amorphous plastic. The amorphous surface layer withstands friction loading at least during an initial break-in period. In one embodiment, the amorphous surface is formed by using a higher plastic melt temperature and/or a lower mold temperature than normal. In another embodiment, an intermediate part is molded as a crystalline intermediate part, and a surface layer is heated and quenched to form the amorphous surface layer on the final part. A bearing cage is molded by injecting the plastic melt at a single point intermediate the ends of a single bar of the bearing cage to permit formation of the desired amorphous layer on rails connected to the ends of the bars.

Abstract: A cage, particularly for needle bearings, is an annular ring of springy cage material and has a slit extending completely through the cage. The opposed, separated ends of the cage at the slit are joined by a pair of elastic connecting arms which are each approximately of V-shape and having vertices which extend axially and either face toward each other or face away from each other, which permits circumferential shifting and inhibits relative axial shifting of the separated cage ends and prevents overlap at the cage ends.

Abstract: A cage has a pair of annular bodies and a plurality of columns provided at equal spacings to couple the annular bodies together to receive spherical rollers therebetween. The columns have side faces each having both axial end portions thereof formed by a composite surface having a flat surface provided outside the pitch circle of the spherical rollers and a conical surface provided inside the pitch circle. Each flat surface is inclined with respect to a plane including the axis of each spherical roller and the axis of the cage so as to come into point-to-point contact with the outer periphery of the respective spherical roller while the bearing is rotating. Each flat surface intersects each plane including the abovementioned axes along a line intersecting the axis of each spherical roller at a right angle.

Abstract: A roller seating for swivel motions includes an outer ring, an inner ring and roller rolling in between which are inserted individually between spacers of a flectionally elastic cage. On at least one end of the spacers, one or more projections directed radially outward and/or radially inward have been formed which face, radially and/or axially, a revolving shoulder surface of the outer ring or the inner ring. In order to keep the play of the rollers between the spacers on the circumferential side as small as desired, each projection of the cage is arranged in such manner that it pushes against the circumference of the corresponding shoulder surface of the outer ring or the inner ring and brings the holding surfaces of the spacers against the rollers due to the elastic deformation of the cage.

Abstract: The invention concerns a roller bearing equipped with rollers held between an inner and an outer race of the bearing and kept separate from one another by a bearing cage which is formed by an annular component consisting of one or more parts in which, along the circumference and at equal distances from one another, partially or fully enclosed openings have been formed which each contain a roller.

Abstract: A polymer cage of this invention comprises two annular end rims connected by multiple crossbars. This cage can be used in conjunction with metallic roller elements and bearing components to provide an improved wheel radial bearing. The cage is designed to provide improved lubricant flow through the bearing, and the cage can be manufactured by axial draw molding techniques.

Abstract: A needle roller bearing is arranged with a reduced friction between a retainer and the remainder of the bearing construction. The retainer is formed of a ring-shaped connecting member and a plurality of roller supporters which are formed integrally with the connecting member therewithin at longitudinally middle points thereof. The roller supporters are disposed with equal distances therebetween to provide spaces for rotatably supporting needle rollers. The retainer is supported at the ring-shaped connecting member by an annular groove formed in the outer race.