Abstract: The present invention provides an oil guide device including a body part, an oil flow path extending from one surface of the body part and coupled to an inner diameter portion of a pinion shaft, a first guide configured to allow oil scattering in an automatic transmission to be introduced into an inner diameter portion of the oil flow path, the first guide being disposed on the other surface of the body part and configured to surround the inner diameter portion of the oil flow path, and a second guide extending from an outer diameter portion of the other surface of the body part and configured to surround the first guide, the second guide being configured to guide the remaining oil, which is not directed toward the first guide, to a desired component.

Abstract: A tapered roller bearing is used in a planetary gear speed reducer, and includes an outer race, and a retainer formed with a first annular portion, a second annular portion, and pillars. At least one retainer guiding surface (raceway) which guides the retainer in a radial direction is formed only on an inner periphery of the outer race. Guided surfaces are formed at least either on the pillars or on the first and second annular portions, and guided by the at least one retainer guiding surface. Therefore, it is possible to guide an axial central portion or both side portions of the retainer, to make the retainer less likely to tilt due to a centrifugal force, and to apply a preload to both side surfaces of the outer race.

Abstract: A rolling bearing device includes a rolling bearing; and a spacer provided adjacent to one side of the rolling bearing in an axial direction and having a grease reservoir and a flow path, the grease reservoir being in a form of a groove, extending along a circumferential direction, and having grease reserved in the grease reservoir, and the flow path providing communication between the grease reservoir and an inner part of the rolling bearing. The spacer includes an annular wall surface that defines an inner periphery of the grease reservoir. An end of the annular wall surface on a side of the rolling bearing in the axial direction of the grease reservoir is continuous with an opposed end face of the spacer that is opposed to the rolling bearing. An entire area of the annular wall surface is constituted by a flat surface.

Abstract: A rolling bearing device includes a rolling bearing; and a spacer provided adjacent to one side of the rolling bearing in an axial direction and having a grease reservoir and a flow path, the grease reservoir being in a form of a groove, extending along a circumferential direction, and having grease reserved in the grease reservoir, and the flow path providing communication between the grease reservoir and an inner part of the rolling bearing. The spacer includes an annular wall surface that defines an inner periphery of the grease reservoir. An end of the annular wall surface on a side of the rolling bearing in the axial direction of the grease reservoir is continuous with an opposed end face of the spacer that is opposed to the rolling bearing. An entire area of the annular wall surface is constituted by a flat surface.

Abstract: A rolling element bearing (1) that includes a plurality of balls (4) as rolling elements guided in a cage (5). A lubricant channel (19) is formed in snap-in pockets (8) in a region between a lateral ring section (6) and the central ball (4) track, between the ball (4) and the adjoining web section (7) and/or the adjoining lateral ring section (6), which fluidically connects the radial outer side and the radial inner side of the cage (5). In order for the rolling element bearing (1) lubricant supply to be improved, on the web sections (7), an outer block section (10) is formed on the radial outer side and/or an inner block section (11) is formed on the radial inner side, which project relative to the lateral ring section (6), in the radial direction in relation to the bearing axis L, and reduce the available rolling element space between two adjoining balls (4).

Abstract: A bearing support cage includes: an annular forward ring; an annular aft ring; an annular mounting flange disposed between the forward and aft rings; an annular array of axially-extending first spring fingers interconnecting the forward ring and the aft ring; and an annular array of axially-extending second spring fingers interconnecting the mounting flange and the aft ring, wherein the first spring fingers are interdigitated with the second spring fingers. The forward and aft rings, the mounting flange, and the spring fingers are all part of a single monolithic component.

Abstract: In the present invention, disclosed is a sealing device for an axle bearing wherein a lubricant is maintained on sliding contact surfaces, thereby suppressing elevation of torque due to the depletion of grease. A lubricant-adsorbing layer (40) comprises a thickener (41) and a binder (42). The lubricant (25) comprises a base oil (43) and a thickener (41B). The thickener (41) and the thickener (41B) are mutually attracted. A lubricant layer (44) of a prescribed thickness is formed on the lubricant-adsorbing layer (40). This lubricant layer (44) adheres closely to the lubricant-adsorbing layer (40) making it difficult to separate the lubricant layer from the lubricant-adsorbing layer (40).

Abstract: An auxiliary bearing including a bearing mount disposed circumferentially about a shaft. A support wall may extend radially inward from the bearing mount, and the support wall may define a first annular cavity. An outer race may be coupled to a radially inner surface of the support wall. An inner race may be rotatably coupled to the outer race, and a plurality of rolling elements may be disposed between the inner and outer races. A pool of lubricant may be disposed within the first annular cavity, and at least a lowermost one of the plurality of rolling elements may be at least partially disposed in the pool.

Abstract: An axle bearing lubricating and cooling system includes a shaft and an axle bearing that has an inner race fixedly mounted around the shaft, an outer race and a plurality of movable members movably set in between the inner race and the outer race, a casing fixedly connected with the outer race of the axle bearing for enabling two distal ends of the shaft to extend out of the casing, casing having a fluid inlet for guiding a cooling fluid from an external cooling fluid source through the gap in between the outer race and inner race of the axle bearing and a fluid outlet located for guiding the cooling fluid out of the casing, and an impeller rotatable with the shaft for forcing the cooling fluid out of the axle bearing toward the fluid outlet.

Abstract: A turbocharger ball-bearing assembly incorporates a cageless set of ceramic bearing balls operating within outer and inner bearing raceways, wherein the outer bearing raceway is on the inside of a fractured outer race.

Abstract: A system is disclosed for use in a rolling mill oil film bearing to remove oil exiting from between a rotating sleeve and a fixed bushing surrounding the sleeve. The system comprises an annular chamber arranged to receive the exiting flow of oil. The chamber is isolated from a drainage sump by confinement surfaces including a seal interface defined by a flexible seal in contact with an adjacent rigid component of the bearing. Impellers project into the chamber and are rotable with and at the velocity of the sleeve to rotatively propel oil around the chamber. A discharge conduit communicates tangentially with the chamber and is arranged to receive a pressurized flow of the oil being rotatively propelled around the chamber. A venturi is located in the discharge conduit. A suction conduit connects the venturi to the drainage sump. Oil escaping from the annular chamber past the seal interface into the drainage sump is aspirated by the venturi for removal via the conduit.

Abstract: Oil is supplied to bearing 1 and returned to oil storage chamber 6a via chamber 2a and pipe 2b. First oil return chamber 8 and second oil return chamber 7 communicate via a hole, and second oil return chamber 7 communicates with oil supply chamber 6 via oil return hole 9. The opening of the extension pipe 10 of oil return hole 9 has a small gap, to result in negative pressure in extension pipe 10. The negative pressure sucks the oil leaking from between bearing cover 3 and rotor shaft 20. The oil leaking is suppressed, keeping the supply of the lubricating oil to the bearing excellent.

Abstract: A bearing device in which an inner ring is sealed from an outer ring by seals and together with the outer ring forms a closed bearing unit with a built-in circulation circuit for a lubricating oil mist. Rolling elements and rolling tracks disposed in the circulation circuit and lubricated by the oil mist. Means are adapted to forming an oil mist of lubricating oil from a reservoir, and means are adapted to causing the oil mist to flow in the circulation circuit. The invention also relates to an application of the bearing device for rotatably supporting a rotor in a centrifugal separator and to a method for supporting a centrifugal separator rotor for rotation about an axis of rotation.

Abstract: In a bearing device, a double row rolling bearing for supporting a pinion gear-side portion of a pinion shaft on a case (annular wall) is formed by a tandem-type double row angular contact ball bearing. A first row of balls having a larger pitch circle diameter are disposed between inner and outer rings of the double row angular contact ball bearing at a region near to the pinion gear, and a second row of balls having a smaller pitch circle diameter are disposed between the inner and outer rings at a region remote from the pinion gear. A bearing internal space is divided into a first bearing internal space containing the first ball row and open toward the pinion gear and a second bearing internal space containing the second ball row and sealed by partition walls formed respectively by bearing seals, lubricating grease being sealed in the second bearing internal space.

Abstract: A positive displacement lubrication system is disclosed that includes a rotatable shaft, a bearing, and a centrifugal force generating lubrication member that is mounted on the shaft for rotation with the shaft. The centrifugal force generator is spaced from the bearing member. A labyrinthine lubricant flow passage extends from the bearing, through a space between the bearing and the centrifugal force generating member, to the outlet member. Among other things, the system and method provides an efficient method of actively managing bearing lubrication and removal of lubricant, while also acting to seal off bearing areas from leaking. The positive displacement devices can be used for both grease and oil mist lubrication systems. They can also operate under heavy thrust loads when used to support the bearings.

Abstract: A bearing comprises a cage which is provided on a circumference of a rotary shaft to hold elements rotating in an oil. A guide unit is provided on the cage to feed the oil in an axial direction or a radial direction of the rotary shaft.

Abstract: A gearbox includes a housing having therein a receiving chamber, a transmission gear wheel mounted in the receiving chamber for rotation driven by an external driving force, an eccentric shaft assembly mounted in the receiving chamber and coupled to the transmission gear wheel for rotation together with the transmission gear wheel and driving action of a cutter, and a lubricating blade mounted at a bottom side of the receiving chamber, rotatably connected with the eccentric shaft assembly for rotation together with the eccentric shaft assembly, and having a plurality of arched grooves for delivering the lubricating oil located at the bottom side of the receiving chamber to the transmission gear wheel and the eccentric shaft assembly by a centrifugal force generated by the rotation.

Abstract: A bearing unit comprises a radially outer stationary race (1) and a pair of radially inner rotatable half-races (2a, 2b). An intermediate annular chamber (8) is defined between the outer race (1) and the inner half-races. The intermediate chamber communicates with the outside through first air passages (5) formed in the outer race and with the inside of the bearing unit through second radial air passages (6) defined between the inner half-races. The second passages (6) are defined by an intermediate annular member (10) which is axially interposed between the inner half-races (2a, 2b) and forms one or more blade surfaces (12a, 12b) extending from the second passage (6) to the intermediate chamber (8) for capturing air from the intermediate chamber and conveying it into the second passage.

Abstract: An oil ring lubricated split bearing housing includes upper and lower bearing housing halves having mating seat surfaces for a bearing which is adapted to support a shaft, an oil reservoir space in the lower housing half, an oil pick up ring partly immersed in the oil reservoir space and rotatable to transfer oil from space to the bearing, an inner labyrinth sealing sleeve fixedly fitted around the shaft and having a circumferential axial groove facing away from the bearing, and an outer labyrinth sealing part with a portion projecting axially into the axial groove thereby forming a labyrinth seal. Both bearing housing halves have gable openings closely fitting around the sleeve. The outer labyrinth sealing part being in the form of a ring having an axially projecting portion entering in the axial groove and another portion retained in a radial, circumferential groove in the upper bearing housing half.

Abstract: An oil ring lubricated split bearing housing includes upper and lower bearing housing halves having mating seat surfaces for a bearing which is adapted to support a shaft, an oil reservoir space in the lower housing half, an oil pick up ring partly immersed in the oil reservoir space and rotatable to transfer oil from space to the bearing, an inner labyrinth sealing sleeve fixedly fitted around the shaft and having a circumferential axial groove facing away from the bearing, and an outer labyrinth sealing part with a portion projecting axially into the axial groove thereby forming a labyrinth seal. Both bearing housing halves have gable openings closely fitting around the sleeve. The outer labyrinth sealing part being in the form of a ring having an axially projecting portion entering in the axial groove and another portion retained in a radial, circumferential groove in the upper bearing housing half.

Abstract: A lubricant flinger, for providing lubricant fluid to bearings on a horizontal shaft within a wet-sump bearing housing, has a rotationally balanced body with portions extending radially sufficiently to reach below a lubricant level in the wet-sump. The body has provisions for fixing it on the horizontal shaft and is capable of insertion, while mounted on the horizontal shaft, into the housing through a bearing bore of radius smaller than that of the body. Outer portions of the body may have features which enhance lubricant pick-up.

Abstract: A lubrication apparatus in a vehicular power transmission unit includes device pinion shaft which is rotatably supported by a bearing disposed at a rear end portion of a casing. The casing contains lubricating fluid. A pickup member is disposed on the drive pinion shaft and picks up lubricating fluid upon rotation of the drive pinion shaft. A trough is formed on a wall of the casing in an inclined relation to the axis of the drive pinion shaft. The trough receives the lubricating fluid which is picked up and allows the lubricating fluid to flow under the influence of gravity to the rear end portion of the casing for lubricating the bearing located thereof.

Abstract: A wheel hub and bearing assembly for mounting on a vehicle axle. The assembly includes a wheel hub having a longitudinal axis, a pair of bearings within the wheel hub, the bearings in spaced axial relation along the longitudinal axis of the wheel hub, a lubricant cavity within the wheel hub between the axially spaced bearings adapted to be filled with a lubricant prior to the wheel hub being mounted on an axle, and a vane disposed within the lubricant cavity and extending radially outwardly with respect to the longitudinal axis of the wheel hub. The vane includes first and second passages.

Abstract: An apparatus for a ball bearing or needle bearing enclosure having an outside hardened raceway that accommodates two separate compliments of ball bearings located at each end of the raceway to engage with and support a central pin that protrudes in a cone shape out of the bearing enclosure at the front end to make contact with and engage a screw thread. The total bearing and pin assembly is secure in a pocket in the worm wheel having a slip fit mating that allows the total bearing enclosure to move forward and back for a controlled distance against a spring washer of calculated pressure to accept the pressure generated from the cone shaped pin and screw thrust. The central pin is cored out to accept a spiral shaped object for the purpose of pre-spinning the central pin with a jet of pressurized air prior to engaging with the screw thread to eliminate any skidding action between the two surfaces.

Abstract: A wheel hub and bearing assembly for use on the ends of a stationary axle and particularly on tractor and trailer axles. A wheel hub, a pair of bearings, a bearing spacer and seals are assembled and installed on the axle end. The bearing spacer is positioned between the pair of bearings and has one or more vanes mounted thereon for redirecting the flow of lubricant disposed in a cavity in the wheel hub between the bearings in a bi-axial flow direction towards each spaced bearing to lubricate and cool the bearings.

Abstract: An apparatus for a ball bearing or needle bearing enclosure having an outside hardened raceway that accommodates two separate compliments of ball bearings located at each end of the raceway to engage with and support a central pin that protrudes cone shape out of the bearing enclosure at the front end to engage in contact with a screw thread. The total bearing and pin assembly is secure in a pocket in the worm wheel having a slip fit mating that allows the total bearing enclosure to move forward and back for a controlled distance against a spring washer of calculated pressure to accept the pressure generated from the cone shaped pin and screw thrust. The central pin is cored out to accept a spiral shaped object for the purpose of pre-spinning the central pin with a jet of pressurized air prior to engaging with the screw thread to eliminate any skidding action between the two surfaces.

Abstract: An improved grease-expelling wheel bearing assembly (1) comprises a grease expelling seal (3), and a grease distributor (5). The grease distributor (5) comprises a collar (7) for mounting about the shaft (9) of a rotor nut (11) and, projecting from the collar (7), at least one grease spreading blade (13) extending radially outwards from the collar towards the assembly housing (15), part (17) of the area between the collar (7) and the housing (15) not being covered by a blade (13), the arrangement being such that rotation of the blade (13) causes grease expelled from the bearing seal (3) to be spread evenly around the circumference of the seal, without preventing its contact with the rotor nut (11).

Abstract: A system for lubricating bearings on a vertical rotatable shaft within a bearing housing, is comprised of an annular lower lubricant sump at a lower portion of the bearing housing; an annular upper lubricant reservoir at an upper portion of the bearing housing; and a conduit providing fluid communication between the lower lubricant sump and the upper lubricant reservoir. Provision is made for metering a flow of lubricant from the upper lubricant reservoir into upper bearings. The lubricant is pumped from the lower lubricant sump, through the conduit, to the upper lubricant reservoir at a rate exceeding the rate of metered flow into the upper bearings. A constant head of lubricant above the metering orifice is provided in the upper lubricant reservoir, as well as an outlet for shunting excess lubricant back to the lower lubricant sump.

Abstract: An oil scavenge assembly for small gas turbine engine. The assembly includes a rolling element bearing, for supporting a rotating shaft, slip fit within a bearing liner. The bearing liner has a plurality of helical grooves along its surface. A plurality of circumferentially spaced scoops extend inward from the liner and direct the oil expelled from the bearing into the helical grooves.

Abstract: A unitized wheel hub and bearing assembly for use on the ends of stationary axles and particularly on tractor and trailer axles. A wheel hub, a pair of bearings and at least one seal are assembled with a mounting sleeve which is sized to be fitted on an axle end. The inclusion of a custom designed mounting sleeve permits the building of unitized assemblies to be used with existing axles as well as with new ones. The unitized construction allows pre-adjustment of the bearings and when two seals are employed, the bearings can also be pre-lubricated.

Abstract: A high speed anti-friction bearing includes an internal impeller mechanism to provide improved high speed lubrication for the anti-friction elements. At high bearing speeds the impeller mechanism scoops liquid lubricant from a liquid annulus centrifugally generated on the outer wall of the bearing. The scooped liquid is hurled inwardly onto the anti-friction elements as a fine mist. The bearing lubrication process is achieved with minimum heat generation and minimum energy loss insofar as the anti-friction elements do not plow through large masses of lubricant.

Abstract: A barrier system for the lubricating oil for the bearings of a centrifugal compressor with labyrinth seals installed in a confined environment, consisting of a disc concentrically rigid with the rotating compressor shaft in the chamber facing the bearing situated on the compressor suction side, in a position between said bearing and the relative suction side labyrinth seal, the disc having an inverted U-shaped rim housing a stator ring rigid with the wall of said chamber and arranged concentric with said shaft, which with said rotating disc forms a small passage continuously fed, and kept filled by the centrifugal effect of said rotating disc, with barrier oil bled from the lubricating oil feed, said stator ring being provided, on that side facing the disc, with a wedge which is inserted into a corresponding cavity in the disc, and with an annular deflector tooth projecting beyond the outer edge of said disc cavity.

Abstract: A side channel pump is disposed on the same shaft as a combination friction bearing, each conveyor blade having a cutout at the height of the side channel equivalent to and corresponding with the cross section of the side channel.

Abstract: The bearing lubricating system comprises a casing having a bore which defines a reservoir and a well sized to receive a sufficient volume of a suitable liquid lubricant. A return passage in the casing allows fluid flow from the well to the reservoir. A shaft extends through the reservoir and through the well. At least one bearing is situated in the bore between the reservoir and the well. A pumper element is mounted on the shaft for rotation therewith within the well. A pair of end seals seal off the opposite ends of the bore from the ambient.

Abstract: The novel controlled-flow lubricating system utilizes a casing that forms, in use, an enclosed oil well. At least one bearing is disposed inside the well. A shaft is journaled in the bearing. A pumping member is pressed onto the shaft adjacent to the bearing for rotation therewith. Upon rotation with the shaft, the pumping member forcefully injects lubricant from one side to the opposite side of the bearing, thereby flushing, cleaning and lubricating the bearing's engaging surfaces. The preferred pumping member is a circular impeller having a plurality of vanes facing an eccentric cavity in an opposite portion of the wall in the well. This eccentric cavity and the impeller intensify the flow of the recirculating lubricant between the well and the reservoir.

Abstract: A rotatable member (3) has on its outside surface a contoured surface portion (15) which widens conically upwards in diameter, is contiguous with a lubricant storage chamber (14) and extends axially to near a bearing (11) by which the rotatable member (3) is rotatably mounted in a housing (4). Lubricant discharging downwardly by gravity from the bearing (11) returns upwardly along the surface part (15) and reaches a zone which is below the bearing (11) and from which the same takes up lubricant. The bearing (11) is therefore supplied with lubricant during the rotation of the rotatable member (3) so that uniform lubrication in a thin layer is ensured. The mounting is used more particularly in a cap of a cap spinning machine or cap twisting machine.

Abstract: Both a closed system and method for cooling a submersible propulsor unit for a water vehicle is provided for a unit of the type that includes a submersible motor having a shaft connected to a propeller, and a housing containing the motor. The system comprises a motor cooling assembly that includes a shaft seal for conducting the shaft outside of the housing while preventing ambient water from entering the housing, a liquid contained within the housing for cooling the motor, a heat exchanger for thermally connecting but mechanically isolating the liquid from the ambient water, an impeller (102) for recirculating the liquid through both the motor and the heat exchanger, and a bellows (128) for equilibrating any pressure differentials between the cooling liquid and the ambient water. A filter assembly (129) mounted within the bellows relieves any pressure differential that is not relieved by the bellows when ambient water pressure is greater than that of the cooling liquid in the housing.

Abstract: The horizontally mounted rotational bearing arrangement for high speeds of rotation is mounted in a casing in two radial rolling bearings. Each radial rolling bearing comprises rolling members guided by an associated cage, and further comprises a groove provided at the shaft and operative as an inner race, as well as an outer race. A respective slinger ring is disposed between each radial rolling bearing and associated cover plate. An impingement surface extends around the associated slinger ring and is in alignment with an operative edge of such slinger ring. This impingement surface is effective for returning lubricant to the rolling members of the associated radial rolling bearing. The cage of each radial rolling bearing is constructed such that by virtue of its movement in operation, the lubricant is conveyed to the rolling members of the associated radial rolling bearing.

Abstract: A lubricating device of a turret type change-over device wherein a plurality of rotating bodies are mounted on a rotatable turret table, comprising: a plurality of bearings adapted to rotate the rotating bodies with respect to the rotatable turret table; a lubricating oil chamber provided in the vicinity of the bearings; and a lubricating oil tank provided within the lubricating oil chamber, the oil tank being rotated in accordance with the rotation of the turret table to retain a lubricating oil therein and supply the same to the bearings.

Abstract: The roller cage of a roller bearing has lubrication grooves extending at an angle across the radially inside surface of one of the cage annular end rings.

Abstract: A sealed antifriction bearing with an inner and outer ring and rolling elements between them includes sealing rings at both axial ends of the annular space between the rings. A sealing ring is fixed to the outer ring and rotates with it. At the inner ring, the sealing ring has a resilient sealing lip with a sealing edge adjacent the inner ring. Projections from the sealing lip project toward the inner ring and are wedge shaped and oriented such that relative rotation of the outer and inner rings causes the projections to convey lubricating oil axially into the annular space between the bearing rings. The sealing lip has a less inclined surface axially inward of the sealing edge and a more sharply inclined surface outward of the sealing edge. The projections are on the sealing lip surface axially inward of the sealing edge.

Abstract: A lubricating mechanism for a rotary machine, such as a Roots blower, of the class having a pair of vertically spaced parallel shafts (20, 22) which are rotated in synchronization with each other by a pair of meshing gears (36, 38) and are provided with bearings (28, 30) and oil seals (40, 42) requiring lubrication. The rotary machine includes an enclosed gear chamber (70) serving to form an oil sump (74) for lubrication of the meshing gears. The lubricating mechanism is intended to lubricate the oil seal (40) and bearing (28) of the upper shaft (20) of the machine located above and remote from the oil sump. The lubricating mechanism comprises a guiding mechanism (80, 82) for positively guiding the lubricant in the oil sump (74) to be entrained in sequence by the lower gear (38) and the upper gear (36) and lifting the lubricant to the upper region of the gear chamber (70).

Abstract: A pillow block housing having partition means dividing the interior of the housing into an outer oil reservoir chamber and an inner chamber for a rolling bearing, said chambers being separated by partition means extending in a generally radial direction with respect to the bearing axis, a lubricator ring which rests in the inner chamber on a shaft member or the like and projects through recesses in the housing partitions into the oil reservoir chamber and supplies lubricant from the reservoir to the inner bearing chamber upon rotation of the shaft, said partition means comprising separate divider sections selectively adjustable in various axial positions in the housing bore in a form-locking manner.

Abstract: The thrust bearing for the shaft of a boiler feed pump in a nuclear reactor plant is cooled by a first stream of lubricant which is drawn from a sump by an impeller receiving motion from the shaft. The first stream constitutes one branch of a larger second stream which flows from the discharge end of the impeller. A third stream constituting another branch of the second stream is sprayed against and is cooled by the housing of the feed pump. The first and third streams are caused to reenter the sump by gravity flow. The exterior of the housing is provided with heat dissipating ribs.

Abstract: A housing (1, 2) for roller bearings (10) with lubrication means in the form of a lubricator ring (13) which partially runs into an oil storage space (17) arranged underneath the shaft (6) and rests on the shaft (6) or the like which drives the lubricator ring (13), has on one side of the roller bearing (10) a dividing wall (4) running at a distant from it arranged radial to the bearing axis for separating a space (12) occupying the roller bearing (10) from an outer space (11) containing the oil storage space (17). The lubricator ring (13) is arranged in an upper area in the space (19) for the roller bearing (10).