Abstract: In accordance with one aspect of the present disclosure, a wear ring assembly is provided for a railway roller bearing. The wear ring assembly includes a wear ring having a central opening for receiving a journal of a railway wheel assembly and an insert including a plurality of spacers configured to extend in the opening of the wear ring to separate the wear ring from the journal. The spacers are spaced apart from each other about the wear ring. The insert may include one or more flanges that separate the wear ring from a bearing cone.

Abstract: A bearing housing including a casing; a rotary bearing with an exterior race mounted inside a bore of the casing, an interior race adapted to be mounted on a shaft and rolling members between the races; and a cap fastened to a front-end face of the shaft, the cap forming an abutment for the interior race on the front face. The bearing housing also comprises a sealing ring mounted in the cap and intended to be clamped axially between the end face of the shaft and the cap.

Abstract: In accordance with one aspect of the present disclosure, a wear ring assembly is provided for a railway roller bearing. The wear ring assembly includes a wear ring having a central opening for receiving a journal of a railway wheel assembly and an insert including a plurality of spacers configured to extend in the opening of the wear ring to separate the wear ring from the journal. The spacers are spaced apart from each other about the wear ring. The insert may include one or more flanges that separate the wear ring from a bearing cone.

Abstract: An anti-creep deep groove ball bearing is provided for a transmission of a vehicle. The bearing has rolling elements and two rings, each ring having a groove. One of the grooves is a half groove while the other groove is a full deep groove. The half groove arrangement allows for additional rolling elements and a greater thickness in one of the rings.

Abstract: An axlebox of railway vehicle bogie comprising a housing, a front cover fixed to a front side of the housing, a rear cover fixed to a rear side of the housing, a cylindrical roller bearing unit, an end cap and a backing ring. A rear chamber and a front chamber on both axial sides of the sealed bearing unit are in fluidic connection through a bypass system.

Abstract: A vehicle disc brake apparatus is adapted for use with a vehicle including a brake disc and includes a bracket configured to be fixed to the vehicle, a caliper body coupled to the bracket and pivotal about a pivotal axis that extends in a front-rear direction of the vehicle, a brake cylinder device that generates braking force, and two levers arranged on the caliper body. The levers transmit the braking force to the brake disc of the vehicle. The bracket and the caliper body are coupled at a position located toward the brake disc from the brake cylinder device.

Abstract: The invention concerns a bearing unit for an axlebox of a railway vehicle. The bearing unit being centered on a central axis and having a bearing configured to support an axle of a wheelset. The bearing unit also includes an annular sleeve provided with an outer periphery configured for mounting in an annular bore of a housing of the axlebox and an inner periphery configured for receiving the bearing; and a plurality of anti-rotation means distributed at the outer periphery of the annular sleeve, for preventing rotation of the annular sleeve in the housing of the axlebox. The invention also concerns a railway vehicle having such an axlebox and a maintenance process for such an axlebox.

Abstract: A double row tapered roller bearing includes: an outer ring having an annular shape; an inner ring disposed on an inner circumferential side of the outer ring and having an annular shape; and rollers. The inner ring has an outer circumferential surface facing the outer ring and having two rows of grooves having a bottom surface serving as a raceway surface. The rollers are tapered rollers disposed in the grooves in contact with the raceway surface of the inner ring and are also in contact with the outer ring. At outer circumferential surface of the inner ring, a region adjacent to the groove includes a hardened region extending from the inner peripheral surface of the groove to the region adjacent to the groove, and an unhardened region located at a position farther from the groove than the hardened region and being smaller in hardness than the hardened region.

Abstract: A technique for delivery of a divergent laser beam emitted with a free-space laser fiber facet, the beam having an optical power, into an optical waveguide. An optical axis of the laser beam is aligned approximately along a propagation Z direction into the optical waveguide. The fiber facet is located in a first plane perpendicular to the Z direction. The waveguide includes an input, direction, and X-Y position of the input in a second plane. The waveguide includes fluctuations in a X-Y-Z position of the input and fluctuations in direction. The laser beam is transformed into a collimated beam by re-directing a propagation of the laser beam, shifting the laser beam parallel to the Z direction, and focusing the laser beam into the input. The speed of transformation of the laser beam is greater than an instant speed of the fluctuations. A maximum optical power is delivered into the waveguide.

Abstract: A wheel hub unit comprises a wheel hub body (100, 200), a first tapered roller bearing (101, 201) and a second tapered roller bearing (102, 202). Two bearings are oppositely disposed in the wheel hub body (100, 200). A bearing bush (104) or a shaft sleeve (204) is sleeved in the inner rings of the first tapered roller bearing (101, 201) and that of the second tapered roller bearing (102, 202), so as to form a rolling and sliding bearing, and the high strength load is effectively absorbed. A seal element is disposed between the outside end of the bearing and the wheel hub body (100, 200) to form the integral type independent seal. The problem that the inner rings of the bearings are exchanged and assembled in a mixed way during the assembly process is avoided, and the efficiency and accuracy of assembly are improved.

Abstract: A distributed load bearing including a roller, an inner flex ring, a pin and a load distribution spring. The inner flex ring is positioned radially inwards of the roller, and the pin is positioned radially inwards of the inner flex ring, and the load distribution spring is positioned in a cavity defined by the pin and the inner flex ring. The load distribution spring is preloaded, so as to apply a force to the pin and so as to apply a plurality of radially outward forces to the inner flex ring.

Abstract: A railway axlebox assembly including a bearing including an inner ring adapted to be mounted on a shaft with an axial preload and an outer ring adapted to be mounted in a housing, a backing ring delivering axial support of the inner ring on an inner end portion of the shaft is provided. The assembly includes a seal that is disposed between the backing ring and the inner end portion of the housing. The sealing includes an elastomeric sealing lip bearing with a frictional contact on a sealing surface provided on the backing ring.

Abstract: A bearing cover is provided for attachment relative to a bearing assembly. The cover includes a flange and a magnet associated with the flange. The magnet is configured to removably retain the bearing cover relative to the bearing assembly.

Abstract: A high load capacity bearing that includes a cylindrical outer sleeve that fits around a separable cylindrical outer race assembly. The outer race assembly includes a set of non-helical grooves formed on its inside surface that mesh and engage teeth formed on the outside surface of a plurality of rotating rollers that are longitudinally and axially aligned inside the outer race assembly. The rollers are longitudinally aligned and evenly space apart and rotated as a unit inside the outer race assembly. Located inside the rollers is an inner race with non-helical grooves formed on its outside surface that mesh and engage the teeth on the rollers. The inner race includes a smooth inside bore that fits around the support surface on a shaft.

Abstract: A blocking end cap for a rolling bearing in a railway axle box of a supporting device for a railway axle is provided. The cap is shaped as a concave disc delimited by an annular side wall having a symmetry axis (A), a bottom wall arranged transversely to the symmetry axis (A), and an elbow-shaped, annular joining portion, connecting the bottom wall to the side wall. The thickness of the bottom wall measured in a direction parallel to the symmetry axis (A) is continuously variable in the radial direction between a maximum (S1) situated at the symmetry axis (A) and a minimum (S2) arranged at a radially outer edge of the cap defined by the side wall.

Abstract: A bearing assembly includes first and second rolling-element bearings each having an inner ring with a running surface for rolling elements and a guide flange that extends radially outwardly beyond the running surface for limiting axial movement of the rolling elements. The inner rings are configured such that they are in contact with each other exclusively within a contact surface diameter that is smaller than an average value of a maximum diameter of the running surface of one of the inner rings and a maximum outer diameter of that inner ring. The guide flanges are disposed on sides of the inner ring of the first rolling-element bearing and of the second rolling-element bearing that face each other axially.

Abstract: A bearing cover is provided for attachment relative to a bearing assembly. The cover includes a flange and a magnet associated with the flange. The magnet is configured to removably retain the bearing cover relative to the bearing assembly.

Abstract: An axle (A) has a journal (2) to which an antifriction bearing (B) is fitted on an enlarged or dust guard section (4) located beyond the journal, with a fillet (6) leading from the journal up to the enlarged section. A backing ring (R) fits over and against the fillet of the journal and has a counterbore (48) that receives the adjacent end of the enlarged section. A stabilizing ring (S) fits into the counterbore of the backing ring and around the enlarged section of the journal to stabilize the backing ring and thereby reduce radial and circumferential movement between it and the fillet of the journal. The stabilizing ring includes a rigidifying element (54) that fits over the enlarged section of the axle with an interference fit and a more flexible compression member (56) that lies within the counterbore where it exists in a state of compression between the counterbore and the rigidifying element. The stabilizing ring allows some microaxial movement of the backing ring.

Abstract: A blocking end cap for a rolling bearing in a railway axle box of a supporting device for a railway axle is provided. The cap is shaped as a concave disc delimited by an annular side wall having a symmetry axis (A), a bottom wall arranged transversely to the symmetry axis (A), and an elbow-shaped, annular joining portion, connecting the bottom wall to the side wall. The thickness of the bottom wall measured in a direction parallel to the symmetry axis (A) is continuously variable in the radial direction between a maximum (S1) situated at the symmetry axis (A) and a minimum (S2) arranged at a radially outer edge of the cap defined by the side wall.

Abstract: An axle box for a railway vehicle bogie comprises a rolling bearing having an outer ring element, an inner ring element, rolling elements mounted there between, and a seal element, the inner ring element being adapted to be secured by screw bolts to an axial end of bogie axle. The axle box comprises an end cap comprising a flange with an inner face and an outer face, an annular first radial surface portion of the inner face being so defined that it is able to lean against an axial end of the inner bearing ring element of the rolling bearing. The flange comprises a central part traversed by screw bores. The flange comprises a first inner axial ridge running alongside the outer circumference of the cap, and extending axially towards the rolling bearing all around the flange, further than the first radial surface portion.

Abstract: An axle bearing device includes an inner ring fixed to an axle of a railway vehicle, an outer ring fixed to a journal box of the railway vehicle, and double row tapered rollers arranged between raceway surfaces of the inner ring and raceway surfaces of the outer ring. An opening portion between the inner ring and the outer ring is sealed by a labyrinth seal including at least one axial labyrinth extending in an axial direction and at least one radial labyrinth extending in a radial direction. At least one of the at least one axial labyrinth and the at least one radial labyrinth which form the labyrinth seal is formed between an outer-ring-side sealing member mounted to the outer ring and the inner ring or between the outer-ring-side sealing member mounted to the outer ring and an inner-ring-side sealing member mounted to the inner ring.

Abstract: Railcar monitoring utilizes instrumented, flexible pads supported within the truck pedestal jaws on the bearing adapters. The pads contain sensors for monitoring temperature pressure, shifting loads, truck hunting and the like and have circuitry for processing information received from the sensors and for processing and reporting departures of performance variables to a remote source. The system cyclically activates polling each pad on a car and communicates signals of critical departures and car identity to a remote source.

Abstract: An axle (A) has a journal (2) to which an antifriction bearing (B) is fitted on an enlarged or dust guard section (4) located beyond the journal, with a fillet (6) leading from the journal up to the enlarged section. A backing ring (R) fits over and against the fillet of the journal and has a counterbore (48) that receives the adjacent end of the enlarged section. A stabilizing ring (S) fits into the counterbore of the backing ring and around the enlarged section of the journal to stabilize the backing ring and thereby reduce radial and circumferential movement between it and the fillet of the journal. The stabilizing ring includes a rigidifying element (54) that fits over the enlarged section of the axle with an interference fit and a more flexible compression member (56) that lies within the counterbore where it exists in a state of compression between the counterbore and the rigidifying element. The stabilizing ring allows some microaxial movement of the backing ring.

Abstract: An axle bearing device includes an inner ring fixed to an axle of a railway vehicle, an outer ring fixed to a journal box of the railway vehicle, and double row tapered rollers arranged between raceway surfaces of the inner ring and raceway surfaces of the outer ring. An opening portion between the inner ring and the outer ring is sealed by a labyrinth seal including at least one axial labyrinth extending in an axial direction and at least one radial labyrinth extending in a radial direction. At least one of the at least one axial labyrinth and the at least one radial labyrinth which form the labyrinth seal is formed between an outer-ring-side sealing member mounted to the outer ring and the inner ring or between the outer-ring-side sealing member mounted to the outer ring and an inner-ring-side sealing member mounted to the inner ring.

Abstract: A novel assembly for a railcar axle bearing is presented. The assembly includes a backing ring affixed to the fillet of the journal of an axle and a locking ring for further affixing the backing ring the journal. The locking ring has an inboard end affixed to the dust guard of the axle and an outboard end for engaging the backing ring. The looking ring may include a resilient sealing ring.

Abstract: A novel assembly for a railcar axle bearing is presented. The assembly includes a backing ring affixed to the fillet of the journal of an axle and a locking ring for further affixing the backing ring the journal. The locking ring has an inboard end affixed to the dust guard of the axle and an outboard end for engaging the backing ring. The looking ring may include a resilient sealing ring.

Abstract: The invention relates to a bearing unit for use in an axlebox of a railway vehicle, including a bearing having an inner ring and a metallic outer ring and rolling elements arranged therebetween. The bearing is configured to support an axle of said railway vehicle. Further, a sleeve surrounding the outer ring of the bearing is provided. It is proposed that the sleeve is made of a non-metallic material.

Abstract: A bearing assembly is provided having a roller bearing with an inner raceway 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. An annular wear ring is positioned between the inner race and the backing ring. An improved lubricant seal arrangement is provided between the wear ring and the supporting outer raceway, and includes a rotor, a seal, a slinger and, in some embodiments, a stator.

Abstract: Railcar monitoring utilizes instrumented, flexible pads supported within the truck pedestal jaws on the bearing adapters. The pads contain sensors for monitoring temperature pressure, shifting loads, truck hunting and the like and have circuitry for processing information received from the sensors and for processing and reporting departures of performance variables to a remote source. The system cyclically activates polling each pad on a car and communicates signals of critical departures and car identity to a remote source.

Abstract: A bearing assembly is provided having a roller bearing with two cones defining an inner raceway fitted around the journal portion of an axle. A cup defines an outer raceway that combines with the inner raceway to receive roller elements. A spacer separates the cones, and a spacer support is provided to position and support the spacer.

Abstract: A rolling bearing apparatus includes inner rings, an outer ring, and sealing devices each having a seal case fixed to the outer ring. The seal case includes a fixing portion press-fitted in the outer ring, and a ring-shaped portion extending radially inwardly from an axially-outer end of the fixing portion. The fixing portion has a ridge formed on and projecting radially outwardly from an outer peripheral surface thereof. The ridge is disposed nearer to the axially-outer end of the fixing portion than an axially inner end of the fixing portion.

Abstract: Railcar monitoring utilizes instrumented, flexible pads supported within the truck pedestal jaws on the bearing adapters. The pads contain sensors for monitoring temperature pressure, shifting loads, truck hunting and the like and have circuitry for processing information received from the sensors and for processing and reporting departures of performance variables to a remote source. The system cyclically activates polling each pad on a car and communicates signals of critical departures and car identity to a remote source.

Abstract: A rolling bearing device of the invention has inner rings, an outer ring, and a sealing unit having a seal case fixed to the outer ring. The seal case is internally fitted to an annular corner formed between a shoulder inner peripheral surface of the outer ring, and a seal groove in a state where the diameter of a fixed portion is reduced elastically, and is fixed to the outer ring in a state where the annular corner and an outer peripheral surface of the fixed portion are in a line contact with each other.

Abstract: A bearing assembly (A1C) for installation over the journal (6,100) at the end of a railcar axle (4) has a backing ring (16,104) that seats against a fillet (10) at the end of the journal, an antifriction bearing (B1D) that fits around the journal, and an end cap (18,106) that extends over the end of the journal to retain the bearing and backing ring around the journal. In one form, the bearing (B) has two cones (32) that fit over the journal with an interference fit, with the inboard cone abutting the backing ring (16). A bore clip (22) holds the backing ring and inboard cone together in alignment before installation on the journal. In another form, a wear ring (108) is interposed between the backing ring (104) and the inner race (102) of the bearing (D), and the bore clip (22) extends between the backing ring and the wear ring.

Abstract: A backing ring that serves to position an antifriction bearing on the journal of an axle for a railcar or locomotive carries a ring containing a corrosion inhibitor. During installation of the bearing on the journal, the backing ring is advanced over the journal followed by the bearing. When the axially directed force that advances the bearing over the journal is transmitted through the bearing to the backing and is resisted at the fillet, the corrosion inhibitor exudes from the backing ring and forms a coating on the fillet to inhibit fretting and other corrosion between the backing ring and the journal.

Abstract: A backing ring that serves to back an antifriction bearing on the journal of a rail car axle includes an annular body that seats against a fillet that is located at the end of the journal and also a lip that projects over a larger dust guard diameter that is located on the axle immediately beyond the fillet. In addition, the backing ring includes a stabilizing element which cooperates with the lip and with the dust guard diameter to lessen the tendency of the annular body to work against the fillet and create a fretting wear when the journal undergoes cyclic flexures. The stabilizing element accommodates dust guard diameters of varying size. The stabilizing element may also establish a seal between the lip and the dust guard diameter.

Abstract: The wireless sensor adds identification information peculiar to respective sensor modules to detection data of vibration, temperature, and so on, detected by the sensor modules respectively. The wireless sensor transmits the detection data with the identification information as a signal through a communication unit by radio waves. On the other hand, the management apparatus receiving the signal classifies and files the detection data on the basis of the identification information included in the signal. Then, the monitoring system is designed to make the management apparatus manage a plurality of wireless sensors attached to movable shafts of processing machines or the like.

Abstract: A tapered roller bearing having its rollers arranged in two rows within an outer race and around an inner race contains a sensing device that radiates signals which reflect conditions within the bearing. In one embodiment, the outer race is unitary and the sensing device is wireless and self-powered and includes a mounting ring that is fitted to the outer race between the raceways along which the rollers roll. The ring has embedded within it several sensors for monitoring bearing conditions such as temperature and vibrations. The ring also contains a radio transmitter, a microprocessor to which the sensors are connected, and a power supply for producing the electrical energy required to operate the processor and the transmitter. The electric power is generated by means of electromechanical energy conversion using permanent magnets, armature winding and a target wheel that is captured between and rotates with the two cones.

Abstract: A product with an automatic identification and data capture (AIDC) device associated with a physical measurement, authentication code or operating condition of the product is disclosed. A bearing with an embedded transponder is illustratively described. The transponder contains data specific to the manufactured bearing, such as physical measurements or identification numbers.

Abstract: An end cap holds an antifriction bearing on a journal at the end of an axle, clamping the inner race of the bearing tightly against a backing ring that is located around the journal. The end cap has an cross wall which extends across the end of the journal and an axial wall formed integral with the cross wall and extended over the journal to provide an abutment surface which is presented toward the inner race of the bearing. The cross wall contains bolt holes through which cap screws pass to thread into the journal and secure the end cap on the journal. The end wall possesses its thickest cross section in regions between the bolt holes and its thinnest cross section in regions generally surrounding the bolt holes. This distributes the clamping force exerted by the cap screws more uniformly over the abutment surface at the end of the axial wall.

Abstract: An improved railway car axle having a shaft body with a pair of wheel seats and a pair of journals respectively disposed adjacent to opposite ends of the axle. A dust guard seat may be located between each wheel seat and the associated journal. Also, fillets are preferably provided at transitions between the dust guard seat and the wheel seat and the dust guard seat and the journal respectively. The journals will preferably be generally cylindrical and may have a nominal outside diameter of approximately six and one half inches and a nominal length of approximately eight and three fourth inches. The dust guard seats separating the respective journals and wheel seats may have a length of approximately three and one half inches. Finally, the wheel seats preferably have a nominal outside diameter of nine and one fourth inches.

Abstract: An antifriction bearing (A) that enables a shaft (4) to rotate with minimum friction in a housing (2) includes a generally cylindrical outer race (46) located in an opening (12) in the housing, an inner race (48) located around the shaft, and rolling elements (50) arranged in rows between raceways on the outer and inner races. The outer race has a cylindrical exterior surface (56), whereas the opening in which the bearing is located has a flat wall (14, 16). A stabilizing block (C) may be attached to the outer race against its cylindrical surface, and this block lies along the flat surface of the housing opening to prevent the outer race from turning in the housing opening. A sensor module (B) is located within the environs of the bearing, and it contains a plurality of sensors (110, 112, 114) which produce signals that reflect conditions under which the bearing operates. Among the conditions monitored are speed, temperature and vibrations.

Abstract: A bearing assembly for mounting on a journal at the end of a shaft employs a seal wear ring disposed between the backing ring and the end face of the axially inwardly directed bearing cone, with the outer cylindrical surface of the seal wear ring cooperating with a resilient sealing element for sealing the bearing. The inner diameter of the seal wear ring is greater than the diameter of the shaft journal to provide a clearance there between along the full length of the wear ring. Counterbores are provided in an outwardly directed surface of the backing ring and in the axially inwardly directed end face of the bearing cone, with the counterbores in the backing ring and bearing cone being dimensioned to provide an interference fit sufficient to provide a substantial radially compressive load in the ends of the seal wear ring upon assembly of the bearing.

Abstract: A compact antifriction bearing fits around a journal at the end of an axle for a rail car. The journal extends from an intervening section of the axle, and the intervening section in turn projects from a still larger main section, there being fillets where the sections merge. A backing ring fits against the fillet at the end of the journal, while an end cap fits over the opposite end of the journal. The bearing includes two cones which are clamped between the end cap and backing ring, a double cup surrounding the cones, and tapered rollers arranged in two rows between raceways on the cones and on the cup. The ends of the bearing are closed by seals which are fitted to the cup and cone. The thicker intervening section of the axle is extended in comparison to its counterparts on traditional axles, and the backing ring extends axially along the journal generally no further than the location at which the fillet emerges from the main body of the journal.