Abstract: Sealing device (1) for a rolling bearing (2) including: an inner race (5), which is axially blocked by a blocking element (4) suitable for being arranged in contact with a reference element (6); a distance ring (8) which is made of plastic material and which is interposed between the blocking element (4) and the reference element (6); a snap fastening element (9) which is integral to the distance ring (8) in order to fasten the distance ring (8) itself to the blocking element (4); and an external covering (10) made of rubber material and arranged outside the snap fastening element (9) in order to guarantee at least one static seal between the inner race (5) and the blocking means (4) and between the blocking means (4) and the reference element (6).

Abstract: A rolling bearing with seal plate for transmission comprising: an inner race that has an inner ring raceway around its outer peripheral surface in the middle in the axial direction; an outer race that has an outer ring raceway around its inner peripheral surface in the middle in the axial direction; a plurality of rolling bodies that are located between the inner ring raceway and the outer ring raceway such that they rotate freely; and a seal plate that is made of synthetic resin and has one of the peripheral edges attached to part of one of the inner race and outer race, and the other of the peripheral edges made to come in sliding contact with a cylindrical surface of the other of the inner race and outer race therearound in parallel to the central axis thereof.

Abstract: A wheel bearing includes a sealing device 5 positioned between inner and outer members 1 and 2. This sealing device 5 includes an elastic member 14, which eventually forms an encoder grid and is provided on a first annular sealing plate 11. A second annular sealing plate 12 is provided with sealing lips 16a to 16c. An engagement 18 between a cylindrical wall 11a of the first annular sealing plate 11 and the inner member 1 is provided with an elastic member 20 made of a material dissimilar to that for the elastic material 14. This elastic member 20 may be a rubber coated layer, resin paint layer, a thin film of adhesive material or a ring-shaped rubber member. Thereby, any possible ingress of water across an engagement surface of the annular sealing plate is prevented, accompanied by increase of the lifetime of the bearing, with no problem associated with separation and displacement of the annular sealing plates. The magnetic flux density can also be easily secured.

Abstract: Sealing device for a rolling contact bearing (2provide with a first shield (5) and a second shield (7) which are made of metal material and which are respectively coupled to an outer race (4) and an inner race (3) of the rolling contact bearing (2) itself, and a seal (10) which is made of synthetic material and which is integral to the first shield (5) and which presents a sealing lip (11) which is arranged substantially in contact with the second shield (7); the first shield (5) is defined by a cylindrical portion (15) which is assembled on the outer race (4), and the seal (10) is anchored to the cylindrical portion (15) in order to freely extend from and overhand the cylindrical portion (15) itself and it presents in axial section, a tapering shape towards a cylindrical sliding surface (13) of the second shield (7).

Abstract: A retainer for a ball bearing formed in a generally annular shape and having a plurality of pockets arranged in a circumferential direction, respectively, to rollably hold a plurality of balls along a pitch circle, respectively, the pockets each having an inner peripheral surface comprising a radially inner section which is located inward of the pitch circle of the balls in the radial direction of the retainer, and has an inner diameter larger than the diameter of the balls, such that the gap between the radially inner section of the inner peripheral surface of the pockets and the rolling surface of the balls gradually increases toward the opening of the pockets on the inner side in the radial direction of the retainer, and that the maximum inscribing circle of the opening of the pockets on the outer side in the radial direction of the retainer has a diameter smaller than the diameter of the balls.

Abstract: A rolling bearing with the sealing device which has a fitting groove and sealing device with a mounting portion. The fitting groove formed on the inner peripheral surface of an outer ring. An outside surface of the fitting groove tilts at 5 to 30 degrees with respect to an radial direction of the bearing. An inside surface of the fitting groove tilts at a tilt angle smaller than that of the outside surface. A total of these tilt angles is 35 degrees or more. The mounting portion has a base portion contacting the inside surface and a portion projecting toward the outside surface of the fitting groove from the base portion, and the mounting portion is thinnest at a front end portion of the projecting portion.

Abstract: A bearing seal for a water pump of an automobile has rolling elements between an outer ring fixed to a casing and a rotary shaft that is provided with a drive portion at one end and an impeller at the other end. In addition, a seal is formed between the outer ring and the rotary shaft by an annular seal body fixed to each end of the outer ring. The seal body on at least the impeller end of the rotary shaft is made of hydrogenated nitrile rubber, to achieve a seal body that is inexpensive but does not deform, even when used in a high-temperature environment in contact with cooling water in a long time.

Abstract: A bearing seal with a flat elastic sealing lip (2), positioned between an outer bearing ring (3) and an inner bearing ring (4) with an inner sealing edge (5), sliding circumferentially on the inner bearing ring (4). One surface of the sealing lip (2) facing a lubricant space has radial helical paths formed between members (6) projecting from the surface. The sealing lip slides circumferentially on the inner bearing ring and lubricant flows in the helical paths.

Abstract: The present invention provides a rolling bearing having a prolonged life suitable for wheel, railway vehicle and steel rolling mill comprising a sealing member which exhibits fair sealing properties even under severe conditions. A rolling bearing comprising an outer ring having an outer raceway formed on the inner surface thereof, an inner ring having an inner raceway formed on the outer surface thereof, a plurality of rolling elements rollably provided between the outer ring and the inner ring, and a sealing member for sealing the axial opening of the space between the inner surface of the outer ring and the outer surface of the inner ring in which said rolling elements are provided, characterized in that the sealing member is formed by an elastic member made of a vulcanizable rubber composition obtained by blending a carboxylated acrylonitrile-butadiene rubber with at least carbon black.

Abstract: Rolling contact bearing (1) which comprises an outer race (2), and a series of rolling bodies (4) which are arranged between the two races (2, 3), and at least one sealing covering (5) arranged laterally to the rolling bodies (4) and between the two races (2, 3); the rolling contact bearing (1)* being characterised by the fact that it also comprises at least one extra shield (15) which is integral to the inner race (3) and which is arranged laterally to increase the sealing capacity of the covering (5) itself.

Abstract: A linear guide apparatus includes a slider, a guide rail opposing the slider with a clearance provided therebetween, a plurality of rolling elements which are rotatably interposed there between, and a contact seal device for sealing an opening of the clearance. A side seal member of the contact seal device is made of a rubber material composition containing fluoro rubber. The rubber basically comprises at least one of copolymers that are vinylidenefluoride-tetrafluoroethylene-polypropylene terpolymer and tetrafluoroethylene-polypropylene copolymer.

Abstract: A sealing assembly used for a wheel bearing of automobiles in order to prevent ingress of contaminating agents such as water or dust into a bearing. The sealing assembly includes an inner annular element, an outer annular element, a seal rubber, and grease. More particularly, the sealing assembly adapts a particularly shaped inner annular element. Additionally, the seal rubber includes a plurality of projecting lips and an uppermost lip of the seal rubber comes in contact with an outer surface of the inner annular element to enlarge the grease containing area and improve the isolation of the bearing by preventing the leak of grease from the sealing assembly and ingress of contaminating agent into the bearing.

Abstract: Sealing device (1) for a rolling bearing (2) which presents an inner race (5), which is axially blocked by a blocking element (4) which is suitable for being arranged in contact with a reference element (6); the device (1) being provided with a distance ring (8) interposed between the blocking element (4) and the reference element (6); the device (1) also being provided with snap fastening means (9) which are integral to the distance ring (8) in order to fasten the distance ring (8) itself to the blocking element (4); the device (1) also being provided with an external covering (10) which is made of rubber material and which is arranged outside the snap fastening means (9) in order to guarantee at least one static seal between the inner race (5) and the blocking means (4) and between the blocking means (4) and the reference element (6).

Abstract: An angular contact ball bearing includes an outer ring having an outer ring race formed on an inner surface thereof, an inner ring having an inner ring race provided on the outer surface thereof, a plurality of rolling elements provided between the outer ring and the inner ring, an annular cage for retaining the rolling elements, and seals provided on openings between the respective ends of the inner and outer rings. The cage is made of a synthetic resin material and is supported through the guide of the rolling elements. The cage includes a plurality of cylindrical pockets arranged peripherally for retaining the rolling elements and a reduced diameter portion formed at ends of the pocket for regulating the radial movement of the cage while being in contact with the rolling element.

Abstract: The present invention provides a rolling bearing having a prolonged life suitable for wheel, railway vehicle and steel rolling mill comprising a sealing member which exhibits fair sealing properties even under severe conditions. A rolling bearing comprising an outer ring having an outer raceway formed on the inner surface thereof, an inner ring having an inner raceway formed on the outer surface thereof, a plurality of rolling elements rollably provided between the outer ring and the inner ring, and a sealing member for sealing the axial opening of the space between the inner surface of the outer ring and the outer surface of the inner ring in which said rolling elements are provided, characterized in that the sealing member is formed by an elastic member made of a vulcanizable rubber composition obtained by blending a carboxylated acrylonitrile-butadiene rubber with at least carbon black.

Abstract: Sealing device for a flanged bearing for a wheel hub in which the flanged ends (13) of the outer race (11) have the metallic rings (14) of a sealing device (15) pressed on to their internal surfaces; each metallic ring (14) incorporates a rubber element (16) which is suitable for forming a static seal on the outer race of the bearing; the rubber element (16) extends towards the inner race (10) of the bearing (12) to then bend back towards the outside of the bearing itself with an appendix (17), which forms two seals (18 and 19) on the internal surface of a second metallic ring (20); the latter is pressed on to the external surface of the inner race (10) of the bearing; a rubber element (21) is applied to the ring (20) in correspondence with its free end (22) which is axially turned towards the inside of the device; the rubber element (22) presents at least two lips (24 and 25), one of which creates a dynamic seal between the two races (10 and 11) of the bearing together with the above-mentioned lips (24 and 2

Abstract: A seal for use with a tapered roller bearing includes a seal affixed to a first seal support, and comprises an inner sealing member in contact with a second seal support, an outer sealing member extending toward and contacting the second seal support, and a central sealing member extending toward but not contacting the second seal support. A rain shield covering a gap between the first and second seal supports may also be included.

Abstract: A sealing device for a bearing includes first and second annular sealing plates (1, 2) accommodated within an annular end space between inner and outer races (11, 12). Each of the first and second sealing plates (1, 2) is of a generally L-shaped section including a cylindrical (16, 26) wall and a radial upright wall (1a, 2a), and an elastic seal lip element (38). The first sealing plate (1) is secured with the radial upright wall (1a) thereof positioned adjacent respective end faces of the inner and outer races (11, 12), and the radial upright wall (1a) of the first sealing plate (1) has a free end remote from the cylindrical wall (1b) of the first sealing plate (1) spaced a predetermined distance from the cylindrical wall (2b) of the second sealing plate (2) to thereby form a radial gap (4). The radial upright wall (1a) of the first sealing plate (1) also has an outer side face (B) set back inwardly from a free end face (A) of the cylindrical wall (2b) of the second sealing plate (2).

Abstract: A bearing device includes a pair of bearings. One of the bearings is exposed to a higher temperature condition than the other. Each of the bearings has an outer ring, an inner ring, a plurality of rolling members disposed in a space between the outer ring and the inner ring and a pair of sealing members fixed to the outer ring. Each of the sealing members has an elastic lip in contact with an outer surface of the inner ring, and the lip of the bearing exposed to a higher temperature condition is made of a material that is more heat-resistant than the lip of the other sealing member.

Abstract: A sealed rolling bearing in which a rolling member is disposed in a bearing space formed between an outer race and an inner race to rotate the outer race and the inner race relatively to each other, and rotation seal members are disposed at both ends of the bearing space in the axial direction thereof while a stationary seal member is disposed on the side of the inner race, thereby sealing the bearing space. The bearing is provided with a vent on the side of the inner race for approximating a fluid pressure in the bearing space to an outside fluid pressure by causing the inside of the bearing space to communicate with the outside when the state of fluid in the bearing space and state of the outside fluid have a predetermined relationship.

Abstract: A rolling bearing with the sealing device which has a fitting groove and sealing device with a mounting portion. The fitting groove formed on the inner peripheral surface of an outer ring. An outside surface of the fitting groove tilts at 5 to 30 degrees with respect to an radial direction of the bearing. An inside surface of the fitting groove tilts at a tilt angle smaller than that of the outside surface. A total of these tilt angles is 35 degrees or more. The mounting portion has a base portion contacting the inside surface and a portion projecting toward the outside surface of the fitting groove from the base portion, and the mounting portion is thinnest at a front end portion of the projecting portion.

Abstract: A sealing assembly used for a wheel bearing of automobiles in order to prevent ingress of contaminating agents such as water or dust into a bearing. The sealing assembly includes an inner annular element, an outer annular element, a seal rubber, and grease. More particularly, the sealing assembly adapts a “”—shaped inner annular element. Additionally, the seal rubber includes a plurality of projecting lips and an uppermost lip of the seal rubber comes in contact with an outer surface of the inner annular element. As a result, it is possible to enlarge the grease containing area and improve the isolation of the bearing by preventing the leak of grease from the sealing assembly and ingress of contaminating agent into the bearing.

Abstract: A hub includes a hub housing sleeved rotatably on a spindle, and a tubular end piece sleeved fixedly on the spindle. A tubular flexible seal member is disposed between the hub housing and the end piece, and includes an outer ring and an inner ring. The outer ring has a circular tubular portion with an axial inner end, and an inward flange that extends integrally, radially and inwardly from the inner end of the circular tubular portion to abut against a bottom wall of an annular groove that is formed in an end surface of the hub housing. The inner ring has a largest-diameter inner end that is formed integrally with an inner periphery of the inward flange, and a smallest-diameter outer end portion which is sleeved around and which is in tight engagement with a frictional outer surface of an insert portion of the end piece. The inner ring reduces gradually in inner diameter from the largest-diameter inner end to the smallest-diameter outer end portion.

Abstract: A roller-cone drill bit in which a double lip seal, made of a self-lubricating elastomer, protects the bearings from the mud.

Abstract: A sealing arrangement including a ring gasket having at least one dynamically stressed sealing lip which is in sealing contact with a first machine element. A multipole ring made of a magnetized elastomer material is connected to a carrier ring and is moveable past an rpm sensor for detecting rotational movement of the first machine element relative to a second machine element. The carrier ring has an essentially C-shaped profile which is open axially in the direction of the ring gasket and is connected in a rotationally fixed manner to the first machine element. A first leg of the carrier ring is connected to the first machine element has an end which is adjacent the sealing lip at an axial distance.

Abstract: A sealed bearing assembly for supporting a rotating shaft and, in particular, a crankshaft of a two-stroke engine includes an inner race, an outer race and a plurality of roller elements disposed between the inner and outer races. A grease seal is disposed between the inner and outer races and spaced axially outward from the roller elements along an axis of the bearing assembly. The grease seal includes a rigid support structure and a flexible sealing member attached to the rigid support structure. The flexible sealing member includes at least one sealing lip, which contacts a surface of the inner race to provide a sealing engagement between the grease seal and the inner race, thereby retaining lubrication in an interior of the bearing from escaping at least to an interior of a crankcase of the engine and sealing at least the interior of the bearing against crankcase pressure variations in the engine.

Abstract: A rotary shaft is inserted to a tank through a hole formed in a wall of the tank. A casing is provided outside the tank, and the rotary shaft is supported by a bearing arranged in the casing. The casing is watertightly connected to the wall including the hole through a flexible joint. Seal members are arranged in the casing to seal the clearance between the rotary shaft and the casing. A sleeve is fitted on the rotary shaft so that the sleeve is watertightly in contact with at least one of the seal members, and the sleeve can be moved along the rotary shaft to change the seal member in contact with the sleeve. The bearing and the seal member are not affected by the deformation of the tank since the flexible joint connects the tank and the casing, and the rotary shaft can rotate smoothly while securing high sealing quality. The alignment of the axes of the bearing and the hole in the tank can be easy since the bearing is provided outside of the tank, and thus assembly and maintenance of the structure are easy.

Abstract: A rolling bearing device comprises an outer ring 105 provided with an internal raceway 106 formed on its bore, an inner ring 101 provided with an external raceway 102 formed on its cylindrical exterior surface, at least one row of rolling bodies 111 arranged between the two raceways 102, 106 and at least one sealing member 121 secured to one of the rings. The sealing member 121 comprises an annular metal reinforcement 123. The device comprises a part 126 for connecting between the reinforcement 123 and the ring which supports it, the connecting part 126 being formed by a filler metal which, after melting and cooling, provides attachment, sealing and molds to the shapes of the said reinforcement and the said ring.

Abstract: Shaft seal for sealing between a shaft (2) and a machine housing (3). A seal and bearing casing (10) surrounds the shaft (2) to be sealed off and contains a rolling-contact bearing device (11) and a row of lip seals (13), the sealing lips of which engage the shaft surface (2) or a shaft protection sleeve (12). A compensation device (14) is connected, an the one hand, in a sealing manner to the casing (10) by means of a radially inner annular fastening part (23), and is connected, an the other band, in a sealing manner to the housing (3) by means of a radially outer annular fastening part (25), and has a flexible bridging portion (24) between the annular fastening parts (23, 25). The bridging portion (24) contains a first and a second elastomer ring seal (24a, 24b), which are arranged at an axial distance from one another in respective seat recesses (26, 27, 28) of the casing (10) and of the compensation device (14).

Abstract: A hub transmission mechanism includes an axle extending through a spoke-mounting barrel such that a right axle portion thereof extends outwardly from the spoke-mounting barrel. A sprocket-mounting member is sleeved around the right axle portion, and includes an outer shell coupled with the spoke-mounting barrel, a bearing unit disposed within the outer shell around the axle, and a bearing retention member that is disposed in the outer shell around the axle outboard to the bearing unit. A flexible seal member is disposed within the outer shell between the bearing unit and an outward flange of the bearing retention member, and includes an L-shaped cross-sectioned outer ring which is in tight engagement with the outer shell and which has a thick left portion and a thin right portion that is thinner than the thick left portion and that has an inner diameter larger than that of the thick left portion.

Abstract: A strut bearing includes two bearing races, a space formed between these two races, roll bodies arranged in the space between the two races, and a seal for sealing the space formed between the two races. At least a part of the seal is made of an elastic material, and the seal is molded to the bearing races or to parts of a casing accommodating the bearing races.

Abstract: A bearing device includes a pair of bearings. One of the bearings is exposed to a higher temperature condition than the other. Each of the bearings has an outer ring, an inner ring, a plurality of rolling members disposed in a space between the outer ring and the inner ring and a pair of sealing members fixed to the outer ring. Each of the sealing members has an elastic lip in contact with an outer surface of the inner ring, and the lip of the bearing exposed to a higher temperature condition is made of a material that is more heat-resistant than the lip of the other sealing member.

Abstract: Improved shield designs for ball bearing based spindle motors that exhibit improved containment of grease and the base oil within the bearings at accelerated conditions of temperature and speed is disclosed. Improved shield designs are provided at the shield OD contact area, the use of an impervious shield material, the use of barrier films, shield/bearing designs that use tortuous paths and labyrinth schemes for reducing the oil and grease loss from the shield ID gap of DASD spindle ball bearings, and improved stainless steel shield designs.

Abstract: A four-row tapered roller bearing for working rolls of roll stands includes a plurality of axially arranged inner ring parts forming an inner ring, a plurality of axially arranged outer ring parts forming an outer ring, and four annular rows of tapered rolls positioned between the inner and outer ring parts. Each inner ring part has an inner extension with the inner extensions possessing end faces that are directly positioned against one another along a partition groove. The end face of at least one of the inner extensions is provided with a plurality of spaced apart and radially extending grooves in which is received lubricant to lubricate said end faces of the inner extensions. An annular sealing ring encircles the outer surfaces of the inner extensions of the inner ring parts and have a pair of inwardly directed ribs which engage the outer surface of the inner extensions to form between the ribs and the outer surfaces of the inner extensions a closed chamber which bridges the partition groove.

Abstract: Shield designs for ball bearing based spindle motors that exhibit containment of grease and the base oil within the bearings at accelerated conditions of temperature and speed are provided at the shield OD contact area, the use of an impervious shield material, the use of barrier films, shield/bearing designs that use tortuous paths and labyrinth schemes for reducing the oil and grease loss from the shield ID gap of DASD spindle ball bearings, and stainless steel shield designs.

Abstract: A rolling contact bearing has a rotating unit to be integrally assembled to a rotating race (11) of the bearing, comprised of a first metallic annular insert (19) which forms a substantially disc-shaped radial wall (22) and a non-rotating unit to be integrally assembled to the non-rotating race (10) of the bearing, comprised of a second metallic annular insert (15) which has a sealing covering (14) with at least one sealing lip (18) suitable for sliding against the axially inner side of the disc-shaped wall (22); the rotating unit forms at least one substantially radial rotating surface (25) of a given minimum diameter (DR) and the non-rotating unit forms at least one substantially radial non-rotating surface (25) with a maximum diameter (DS) lesser than the minimum diameter, where the units are reciprocally positioned in such a way that the rotating surface (25) is facing the non-rotating surface (23a) from an inner axial position to form an axial stop for the non-rotating surface (23a), so as to provisional

Abstract: A polishing apparatus for polishing a workpiece such as a semiconductor wafer includes a polishing section for polishing a surface of the workpiece held by the top ring, and a cleaning section for cleaning the workpiece which has been polished in the polishing section. The polishing apparatus further includes a workpiece transfer robot for transferring the workpiece to be polished to the polishing section or the workpiece which has been polished in the cleaning section. The workpiece transfer robot has a robot body, at least one arm operatively coupled to the robot body by at least one joint, a holder mechanism mounted on the: arm for holding a workpiece, and a sealing mechanism provided at the joint for preventing liquid from entering an interior of the joint.

Abstract: A sealing assembly for rolling bearing comprises a shield interference fitted to a first race of the bearing. The shield comprises a rigid support having an axial sleeve portion for connection to the first race, and a radial flange portion extending towards the second race of bearing. The support forms a U-fold acting as an axial stopping means for co-operating with a mating surface of the first race to axially lock the shield with respect to said first race.

Abstract: A bearing seal includes an annular body in sealing contact with the outer race of a bearing. The annular body includes a sealing resilient annular member fitted on a shield portion and projecting from the shield portion to contact in a sliding and sealing manner a sealing surface spaced apart from the bearing. The annular body is attachable to the outer race ring of the bearing by way of an annular bulge provided on the resilient member. The annular bulge is attachable by snap-action in a circumferential groove in the inner surface of the outer race ring of the bearing.

Abstract: A sealing assembly for a rolling element bearing includes first and second screens fixed respectively to first and second rings of the bearing, with each screen including a respective rigid reinforcement and a respective elastomeric covering. The first screen includes a sleeve portion and a flange portion and also includes two sealing lips which cooperate with a sealing surface of the second screen. The first screen also has an annular projection extending from the sleeve portion that is adapted to be interposed, together with an extension of the elastomeric covering, between the front surface of the first ring of the bearing and a shoulder of the bearing itself. The second screen has a phonic wheel defined by a flange portion of the rigid reinforcement and a magnetized portion of the elastomeric covering. The elastomeric covering of the second screen has a front surface projecting beyond the front surface of the first ring.

Abstract: A valve stem sealing device used for preventing oil from entering a combustion chamber through a gap formed between a valve guide and a valve stem is disclosed. The valve stem sealing device comprises an annular oil seal surrounding a valve stem and an annular support member fixed to the top of the valve guide so as to hold the oil seal in its place, wherein the support member has an inwardly opening annular recess and rotatably receives the oil seal in the recess, with a bearing being positioned between said oil seal and the side wall of the support member. In addition, a rubber member is tightly interposed between the support member and the valve guide so as to absorb the vibrations caused by a valve operation. Also, a support cap covers the outside wall of the oil seal so that the outside wall of the support cap is brought into contact with the bearing.

Abstract: Sealing members, such as rolling bearing seal and oil seal, which are not only satisfactory in the fundamental properties required of them, such as sealing performance, heat resistance, mechanical strength and oil resistance, but also excellent in creep and PAG resistances. The member has an elastic part and is made by molding a modified nitrile rubber comprising a butadiene-acrylonitrile-acrylate copolymer and containing an organic peroxide as a vulcanizer, a metal oxide as a vulcanization aid, and a basic silicate as a reinforcing filler.

Abstract: Sealed bearing incorporating an inner race (13) an outer race ring (14) and a row of elongated rollers (15) disposed between, whereby races (11, 12) and rollers (15) have curved longitudinal section profiles and which rollers (15) are axially moveable between the races relative thereto for allowing mutual misalignment of the races, and whereby at least one sealing member (18) is formed separately, positioned axially outside the rollers (15) but adapted to follow the rollers (15) in a free-floating manner and arranged to provide its sealing effect by frictional engagement, wherein at least one of the inner and outer race rings (13, 14) at the axial outer ends of its race (11, 12) is each provided with a radially projecting motion preventing means (20) of short axial width, arranged to prevent the sealing member (18) from being pressed out from the space between the bearing race rings even at misalignments of the race rings (13, 14) relative to each other.

Abstract: A sealing plate for a bearing, includes a metallic ring-plate, and a vulcanized elastic material ring-plate having an outer peripheral edge portion protruding outwardly from the metallic ring-plate. The ring-plates are respectively punched from a metallic plate on which an elastic material is applied and an elastic material plate without using metal molds. The metallic ring-plate and the vulcanized elastic material ring-plate are overlapped and then bonded to each other, with centers thereof being aligned with each other. The outer peripheral edge portion of the elastic material ring-plate has such a width as to be bent for wrapping in the outer peripheral edge of the metallic ring-plate therein, when it is forced into a sealing groove of the bearing.

Abstract: A fastening arrangement for fastening an antifriction bearing in a housing bore. A securing sleeve is disposed at an edge at the outside and toward one axial end of the outer ring of the bearing. The sleeve has beadlike projections that are sprung radially outwardly and that are received in a groove formed in the housing for axially affixing the bearing in the bore. The securing sleeve is axially sprung against the axial end of the outer ring.

Abstract: An end cap assembly for an air compressor driven by an internal combustion engine has a crankshaft structure provided with a shaft, an end cap disposed around the shaft, a first set of ball bearings mounted in the end cap for disposition around the shaft and a second set of ball bearings mounted in the end cap and spaced from the first set of ball bearings for disposition around the shaft. A crankshaft seal and bearing spacer arrangement is disposed around the shaft between the first and second sets of ball bearings for blocking passage of air and oil from the engine, and preventing the first and second sets of ball bearings from contacting each other.

Abstract: A bearing assembly includes an inner ring and outer ring defining opposed raceways having a plurality of bearing elements disposed therebetween. The bearing assembly includes an improved sealing arrangement having multiple primary seals for providing sealing with the rotating inner ring. In preferred embodiments, the multiple seals include a rolled riding seal and an oblique contact seal having a center lip therebetween. Unlike the other two primary sealing lips, the center lip preferably provides no more than light engagement with the bearing inner ring.

Abstract: A stuffing pump for use in an apparatus for stuffing sausages or the like in which a rotating shaft for rotatively driving a rotor disposed in a housing is supported by bearings at one end thereof. A shaft member coupled to another end portion of the rotating shaft by a fitting and coupling structure is provided, and the shaft member is supported by a rolling bearing so that the rotating shaft is supported on both sides with respect to the rotor.

Abstract: A rolling bearing includes an outer race ring, an inner race ring and a plurality of rolling bodies arranged between the race rings and adapted to roll against race tracks provided in the race ring surfaces facing each other. The bearing further includes at least one member spaced apart from the race tracks and contacting both race rings. The rolling bodies are electrically non-conductive while the at least one member contacting both race rings is highly electrically conductive, thereby allowing the transfer of electrical currents out of the bearing in an unharmful manner and/or the transfer of electrical signals through the bearing for processing outside the bearing.

Abstract: There is provided a bearing sealing device capable of substantially completely preventing a leak of grease. A taper end portion of an axial extension of the bearing sealing device has an opposite surface and a rake face that forms a specified rake angle with the opposite surface. The opposite surface forms a narrow passage between the opposite surface and an outer peripheral surface of an inner ring. The narrow passage allows air to pass easily, but it allows grease to hardly pass therethrough. Further, the axial extension includes part of a core metal that extends axially and has its foremost end located axially inside an axial outermost end of the outer peripheral surface of the inner ring. Grease moving axially outwardly on the outer peripheral surface is moved along the rake face of the taper end portion and then guided along a cover portion of the bearing sealing device to an outer ring. The part of the core metal prevents the axial extension from being bent radially outwardly by a centrifugal force.