Abstract: A shaft, including an outer peripheral surface; an inner peripheral surface; an oil flow passage that is formed in the shaft and is defined by the inner peripheral surface; a large inner-diameter portion having a first inner diameter; a small inner-diameter portion adjoining the large inner-diameter portion in one direction along an axial direction of the shaft, and having a second inner diameter smaller than the first inner diameter; and a through hole extending from an inner peripheral surface of the large inner-diameter portion to the outer peripheral surface of the shaft. The small inner-diameter portion is formed by bending radially inward an extending portion, which extends in the one direction from the large inner-diameter portion.

Abstract: A shaft assembly includes a gear with a gear bore having a splined bore section adjacent to an oil dam. A shaft includes a first splined end section and a second splined end section, the first splined end section engageable with the splined inner diameter, the shaft having a bore with a bore diameter greater than a diameter of the oil dam, a first set of radial apertures axially inboard of the first splined end section in communication with the shaft inner bore and a second set of radial apertures axially inboard of the second splined end section in communication with the shaft inner bore that altogether provide lubrication of the splined end sections.

Abstract: An outer race assembly for a constant velocity joint is disclosed. The outer race assembly may include an outer race defining a plurality of tracks and a piston selectively moveable along the tracks of the outer race. The outer race assembly may further include a seal disposed about the piston and abutting the outer race about substantially an entire perimeter of the piston. The seal thereby generally seals an interface between the piston and the outer race.

Abstract: The invention relates to an elastic coupling in disc construction, in particular for damping torsional vibrations of an internal combustion engine, having the following features: a first coupling half, which comprises two side discs, which are connected in a rotationally-fixed manner on the outer circumference; a second coupling half, which is formed by at least one middle disc assigned to a hub, which is arranged between the side discs and enveloped thereby; the two coupling halves are pivotable to a limited extent to one another against the force of at least one elastic coupling element; the side discs delimit a liquid-tight inner space, which receives the middle disc, at least one damping chamber, which is variable in volume during the mutual pivoting of the coupling halves and is filled with a damping medium, is arranged in the radial outer area of the inner space; a floating damping ring, which is pivotable to a limited extent in relation to each of the two coupling halves, is introduced into the inne

Abstract: A grease composition including: one or more mineral, synthetic or natural base oils, a thickener, at least one solid lubricant constituted by one or more transition metal chalcogenides with an inorganic fullerene structure, one or more organophosphorus and/or organophosphorus-sulphur anti-wear and/or extreme pressure additives. A grease composition as defined above is used in the constant velocity joints of the transmissions of motor vehicles. Constant velocity joints containing a grease as defined above are also provided.

Abstract: A transmission system including a damper having a hysteresis package and a flange, wherein the flange includes a first set of splines, an input shaft having a second set of splines arranged about an interior of the input shaft, wherein the first set of splines form an engagement with the second set of splines for transferring torque between the input shaft and the flange, wherein grease is included between the first and second sets of splines for lubricating the engagement of the input shaft and the flange, and a grease trap mounted to the flange located between the input shaft and the hysteresis package for restricting the grease from traveling radially down the flange and into the hysteresis package.

Abstract: Shaft arrangement having a shaft and at least one component, which is arranged on the shaft and which is to be lubricated and/or cooled by means of a fluid, a fluid feed device being designed to feed the fluid to the shaft arrangement radially from outside. The component is a shaft sealing ring, which rests on the shaft and which is fixed to a housing. A baffle plate, which with the shaft sealing ring defines a fluid baffle chamber and which is separated by an annular gap from the outer circumference of the shaft, is arranged axially next to the shaft sealing ring. The fluid feed device is arranged so that fluid is fed into the fluid baffle chamber.

Abstract: A circuit for carrying hydraulic lubricant in a transmission includes a shaft including a duct, a second shaft separated by a space from the shaft, and including a second duct, and a cup plug including a leg that extends across the space, the leg and the second shaft forming a passage directed between an end of the leg and the space, and a cap having an orifice connecting the ducts.

Abstract: A circuit for carrying hydraulic lubricant in a transmission includes a shaft including a duct, a second shaft separated by a space from the shaft, and including a second duct, and a cup plug including a leg that extends across the space, the leg and the second shaft forming a passage directed between an end of the leg and the space, and a cap having an orifice connecting the ducts.

Abstract: A concentric cylinder drive assembly (1) used for the transmission of power in industrial machinery is disclosed. More specifically, a concentric drive assembly (1) with a hollow outer cylinder (5) having an internal surface with a bi-directional surface lay; an inner cylinder (3) having an external surface with a unidirectional surface lay oriented at a predetermined angle (?) along the length of the cylinder; an annular channel established between the outer and inner cylinders having a predetermined gap (7); and a lubrication oil that substantially fills the annular channel is presented.

Abstract: The present invention provides a grease composition or a lubricating oil composition which is capable of effectively preventing hydrogen brittleness-caused peeling from occurring on a rolling surface of a rolling bearing, is excellent in durability in a high temperature and speed operation, and can be used for a long time. A grease-packed bearing (1) has an inner ring (2), an outer ring (3), and a plurality of rolling elements (4). A sealing member (6) for sealing a grease composition (7) is provided at openings (8a) and (8b) disposed at both axial ends of the inner ring (2) and the outer ring (3). The grease composition (7) includes a base grease composed of a base oil and a thickener and an additive added to the base grease. The additive contains at least one compound selected from among plant-derived polyphenolic compounds and compounds formed by decomposition thereof.

Abstract: A power transmission section particularly adapted for use in a downhole drilling system. A drive shaft is pivotally connected to input and output end connection members with pivot balls therebetween to allow pivoting of the shaft ends relative to the input and output end connection members. A plurality of ball segments having one spherically-curved surface are provided at each end of the drive shaft to engage with the input and output connection members and to transmit torque between the shaft ends and the input and output end connection members, regardless of the angular variation between the drive shaft longitudinal axis and the longitudinal axes of the input and output end connection members.

Abstract: A damper includes an outer cover having a front cover and a rear cover. The covers are joined to form a lubricant oil accommodation chamber for accommodating liquid. A damper device, a limiter mechanism, a first plate including a first collar portion located toward the front of the limiter mechanism, and a second plate including a second collar portion located toward the rear of the limiter mechanism are arranged in the outer cover. The limiter mechanism includes a first limiter plate, which is an input side on the torque transmission path, a second limiter plate, which is an output side on the torque transmission path, and a limiter disc spring, which presses the limiter plates.

Abstract: A machine has a shaft rotatable in at least one lubricated bearing. A lubricant duct for lubricating the bearing extends along the first shaft. A turbine, having blades engaging radially in the lubricant duct and oriented warped to the axis of the first shaft, is situated in the lubricant duct.

Abstract: The invention relates to a length-adjustable shaft comprising—an outer sleeve-shaped axial part; —an inner axial part which can be pushed into and deployed out of the outer axial part in a telescopic fashion and which encloses a buffer chamber; —having a bearing which is arranged between the two axial parts and which can be lubricated with a lubricant; —that end of the inner axial part which can be pushed into the outer axial part has an end wall; —a ventilation opening is provided which connects, in a conducting fashion, the buffer chamber to the cavity which is enclosed by the outer axial part. The invention is characterized by the following features: the ventilation opening comprises at least one bore which is offset with respect to the rotational axis of the shaft.

Abstract: A dual-mass flywheel has a first mass body and a second mass body which can rotate relative to one another by way of a damping device disposed between the first mass body and the second mass body. The damping device includes, running in the shape of an arc, at least one helical compression spring, which introduces spring force into the mass bodies via contact surfaces formed on the first mass body and the second mass body. The helical compression spring is guided in the radial direction by a wall formed by a mass body. At least one friction-reducing sliding component in the form of a wire cushion body is provided between the wall and the helical compression spring.

Abstract: A torque-transfer assembly includes a fluid transfer tube located within a bore of a shaft. The fluid transfer tube seals to the shaft and includes at least one fluid groove that communicates between a plurality of fluid ports located in the shaft. The fluid groove is defined by an outer surface of the fluid transfer tube.

Abstract: A universal joint with improved ball lubrication, the improvement wherein each yoke has a ball head at an inward end of the yoke, the centering plate has a tube in which the ball heads of the yokes are slideably received to establish a slideable connection between the ends of the yokes and the centering plate, and the lubricant is supplied from the second passageway to an interior of the tube. A shield substantially encloses the joint in combination with the tractor master shield and has lubrication fitting access holes.

Abstract: The present invention provides a universal joint which is excellent in the performance of retaining a lubricant, is capable of suppressing an exudation amount of a lubricating component to a necessary minimum amount and preventing the lubricant from scattering from an open portion when the lubricant is deformed by an external force, has a long life, costs low, and is excellent in the productivity thereof; and a method for producing the universal joint. In the universal joint, a rotational torque is transmitted by engagement between a torque transmission member (6) and tracks (4, 5) provided on an outer member (2) and an inner member (3); the torque transmission member (6) rolls along the tracks (4, 5), thus moving in an axial direction; and a porous solid lubricant (10) is enclosed on a periphery of the torque transmission member (6).

Abstract: A rotary feed-through is proposed to supply oil to a transmission shaft (1), in an axial extending borehole or oil passage (2), respectively, comprising a stator, positioned at the enclosure, and a rotor, turning with the shaft, in which the bearing cover (4), connected with the enclosure, or the holding plate of the bearing (3), respectively, of the shaft (1) which needs to be supplied with oil, serves as a stator, and the hub (6) of an already present part (5), axial viewed at the side of the bearing (3), facing away from the enclosure and positioned before the bearing (3), and rotationally linked torque-free with the shaft (1), serves as the rotor of the rotary feed-through.

Abstract: As lubricating construction for a spline coupling portion for connecting a rotating shaft of a generator-motor and a rotating shaft of a hydraulic pump both actuated by an engine, a lubricating oil chamber communicating with the spline coupling portion is formed within a motor casing of the generator-motor, while in a pump casing of the hydraulic pump there is formed an oil passing hole providing communication between the lubricating oil chamber and an oil chamber in the hydraulic pump on an outer periphery side of the rotating shaft of the hydraulic pump, thereby forming an oil passage for allowing working oil present within the hydraulic pump to circulate through a route including the spline coupling portion.

Abstract: An output tube assembly including a substantially cylindrical tube having an inner surface and an outer surface is provided. Also included is at least a set of bearings located on the inner surface of the tube. A slot through the inner surface to the outer surface extending from the inboard end of the cylindrical tube past the set of bearings is also included. A flange, a snap ring, and an end cap may also be provided. A method for lubricating the bearings of the assembly is also provided.

Abstract: The invention relates to a lubrication system for a gearbox (9) with stationary (10,23) and rotating (11) gearbox parts particularly in a wind turbine (1). The system comprises lubrication distribution means (14,16,18) in said stationary (10,23) and rotating (11) gearbox parts such as lubrication bores and openings. One or more rotary transmissions (15) establish a transmission channel between lubrication distribution (14,16,18) means in said stationary and rotating gearbox parts where said one or more rotary transmissions (15) include at least two connecting means (24a, 24b). The invention also relates to a wind turbine (1) with a drive train including a gearbox (9), and a lubrication system.

Abstract: A greasable wheel hub (20) using a constant-velocity (CV) joint (22) as a hub spindle is taught. The wheel hub (20) includes a hub cover (28) attached to a hub body (24), which in turn is attached to a CV housing (32) and a CV bearing (34), both of which are portions of the CV joint (22). A grease (46) is injected through a grease fitting (36) into a grease trough (42) at the interface between the hub cover (28) and the hub body (24). This grease (46) is then conveyed through a plurality of grease passages (44) to the CV housing (32), where it provides lubrication for the CV joint (22). Another grease (47) is injected through another grease fitting (37) into another grease trough (43). This grease (47) is then conveyed though a plurality of other grease passages (45) and a plurality of grease channels (49) to the CV bearing (34), where it provides lubrication.

Abstract: The present invention provides a supporting rack one lateral end thereof is provided with a connecting section and the base thereof is provided with an extending section at least one clamping ring is formed at the free end of the extending section and an opening is provided between the clamping ring and the extending section; an auxiliary connecting member used to connect a reinforcing sheet to the extending section a positioning sheet is formed by vertically bending one end of the reinforcing sheet and is formed as one piece with the reinforcing sheet; a core hole is axially provided on the positioning sheet, with respect to a location of a shaft hole of the clamping ring and with respect to a size of a shaft rod; a pivotal shaft the shaft rod is axially extended from the pivotal shaft; the shaft rod passes through the core hole of the positioning sheet and is tightly connected thereon, and is covered by at least one clamping ring.

Abstract: This invention relates to a lubricating oil balance equipment, which includes a main body forming a non-closed loop and a extending portion which extends from said main body along axis direction. This structure can make the lubricating oil entered the open end of said main body flow out from the extending portion. Lubricating oil in the lubricating oil balance equipment can be only when it reaches the highest level of the main body and flows through the extending portion, this structure can ensure the uniformity of oil in different parts, which is beneficial to lubricate bearings and the life of bearings.

Abstract: A shaft tube system comprises a shaft having an elongated body, a cam at a brake end and a coupler at an actuated end. A shaft tube accommodates the shaft such that a cavity is defined between the elongated body of the shaft and an interior of the shaft tube with the shaft being rotatable along its longitudinal axis within the shaft tube. The shaft tube has a blockable inlet in fluid communication with the cavity to supply lubricant to the cavity. Seals are positioned between the shaft and the shaft tube at opposed ends of the shaft tube so as to define a lubricant reserve in said cavity, to lubricate the shaft with respect to the interior of the shaft tube. A purge system has a purge outlet in the shaft tube in fluid communication with the cavity adjacent to the brake end for lubricant from the lubricant reserve to be purged therethrough, and a flow control member for each said purge outlet restricting an exit of lubricant through the purge outlet.

Abstract: A torsional vibration damper includes: a primary mass adapted to be coupled to an engine crankshaft and defining a substantially ring-shaped chamber that is divided into at least two portions; a secondary mass relatively rotatably connected to the primary mass and connectable with a clutch; and a damping unit for coupling the primary and secondary masses to each other in a rotationally elastic manner. The damping unit includes a plurality of coil springs, a pair of end guides, and a friction guide that is disposed between neighboring coil springs and provided with an outer circumferential surface configured to be rubbed against an outer wall of the ring-shaped chamber. An oil groove is formed on the outer circumferential surface of the friction guide and at least a portion of the oil groove is formed to be slanted with respect to a circumferential direction of the ring-shaped chamber.

Abstract: According to one embodiment of the invention, a system for maintaining relative axial positioning between two rotating assemblies comprises a first rotatable assembly and a second rotatable assembly. The first rotatable assembly has captor plates. The captor plates form a cavity between a first of the captors plates and a second of the captor plates. The second rotatable assembly has a thrust plate. The thrust plate comprises a disc positioned within the cavity of the captor plates. The first rotatable assembly is axially positioned with respect to the second rotatable assembly through a rolling interaction between the thrust plate and the captor plates, or the second rotatable assembly is axially positioned with respect to the first rotatable assembly through a rolling interaction between the thrust plate and the captor plates.

Abstract: An intermediate shaft assembly for an automotive transmission wherein hydraulic fluid intake ports in the rotating shaft assembly are designed to increase hydraulic fluid flow and improve lubrication to mating components served by the shaft lubrication circuit is disclosed. The hydraulic fluid intake ports are laterally offset from the center plane of the shaft assembly to increase the angle of entry to fluid entering the intake ports and configured to produce a scooping effect within the fluid surrounding the intake ports upon shaft rotation, which substantially increases hydraulic flow into the shaft and counteracts the inhibitory effect of centrifugal force on fluid flow within the ATF intake ports. In addition, the present intermediate shaft assembly includes a flexible transitional diameter to impart axial flexion to the shaft during peak torque events and also provides semicircular spline relief grooves, which reduce areas of stress concentration and potential breakage of the shaft.

Abstract: Helical members applied in flexshaft assemblies for retaining lubricant inside a flexshaft casing 22. The helical members have a helix that is opposite of a helix of wires that make up a flexible drive member. The helical members direct the lubricant away from an end of the flexshaft assembly that the helix of wires tends to direct the lubricant toward.

Abstract: A lift and operating angle varying mechanism is arranged to vary an intake valve operation angle and an intake valve lift of the engine continuously by rotating a control shaft with an actuator disposed at an end of the control shaft which is rotatably supported by a plurality of bearings. A lubricating oil is supplied to the bearings so as to reduce nonuniformity in temperature distribution of the control shaft in the longitudinal direction.

Abstract: A slip joint includes a structure that prevents a negative pressure situation from occurring within a sealed lubricant chamber during operation thereof. The slip joint includes a male splined member having a plurality of external splines formed thereon that cooperate with a plurality of internal splines formed on a female splined member. The cooperating splines are disposed within a lubricant chamber defined at one end by a seal assembly and at the other end by a pressure regulator assembly. The pressure regulator assembly includes a housing having an open end that faces toward the lubricant chamber. A pressure plate is disposed within the housing of the pressure regulator assembly and is supported for sliding movement relative thereto. A spring urges the pressure plate toward the open end of the housing and the lubricant chamber.

Abstract: An intermediate shaft assembly for an automotive transmission wherein hydraulic fluid intake ports in the rotating shaft assembly are designed to provide increased hydraulic fluid flow and improved lubrication to mating components served by the shaft lubrication circuit is disclosed. The hydraulic fluid intake ports are laterally offset from the center plane of the shaft assembly to increase the angle of entry to fluid entering the intake ports and configured to produce a scooping effect within the fluid surrounding the intake ports upon shaft rotation, which substantially increases hydraulic flow into the shaft and counteracts the inhibitory effect of centrifugal force on fluid flow within the ATF intake ports. In addition, the dimensions of fluid plug orifices and of lubrication outlets on the present shaft assembly have been calibrated to regulate the increased ATF flow and to deliver effective lubrication to the aforementioned mating components.

Abstract: An electric power steering device for transmitting a rotation of a motor for assisting operation of steering which is reduced via a reduction gear to a steering mechanism includes: a male type joint member and a female type joint member which are jointed each other for transmitting the rotation of the motor to the reduction gear; and lubricant including base oil having kinetic viscosity of 1000 to 5000 mm2/s (40° C.), worked penetration of which is not more than 300, and which is charged between the male type joint member and the female type joint member.

Abstract: A slip joint includes a structure that prevents a negative pressure situation from occurring within a sealed lubricant chamber during operation thereof. The slip joint includes a male splined member having a plurality of external splines formed thereon that cooperate with a plurality of internal splines formed on a female splined member. The cooperating splines are disposed within a lubricant chamber defined at one end by a seal assembly and at the other end by a pressure regulator assembly that maintains a positive pressure situation within the lubricant chamber during operation thereof (i.e., a situation where the fluid pressure within the lubricant chamber is greater than or equal to than the fluid pressure outside of the lubricant chamber). To accomplish this, the pressure regulator assembly includes a housing having an open end that faces toward the lubricant chamber. A spring urges the pressure compensator assembly toward the lubricant chamber.

Abstract: A torsionally flexible coupling having a rotational axis (1), including a first ring (2) and a second ring (3, 4), which enclose each other [one enclosing the other] at a radial distance, at least one ring-shaped first spring element (5) made of elastomeric material being positioned in the annular clearance (13) formed by the radial distance; and a belt pulley (7) being fastened, relatively having torsional flexibility, to at least one of the rings (2; 3, 4) with the aid of a second spring element (6) made of an elastomeric material, and being supported on at least one of the rings (2; 3, 4) at least in the radial direction with the aid of a sliding bearing (8, 9); the sliding bearing (8, 9) being formed by a rubber layer (9) having at least two embedded sliding rings (8).

Abstract: A torque limiting apparatus includes: a connecting shaft (20), the output side of which is connected to a differential gear system (60), and the input side of which is protruded out of an opening (80b) formed at the housing (80) of the differential gear system; a hollow cylindrical casing (10) supported on the input side of the connecting shaft rotatably relative thereto, and connectable to the drive shaft; a seal member (14) for interconnecting liquid-tightly an opening at the output side of the casing and an opening of the housing, and a connecting mechanism (30) provided between the casing and the connecting shaft, for transmitting only a partial power less than a predetermined torque value out of whole power input into the casing, so that a lubricating oil can be automatically supplied.

Abstract: Apparatus for transmission of torque in the power train of a motor vehicle has coaxial rotary first and second torque transmitting devices, each of which can constitute a simple or a composite flywheel, and a torsional vibration damper operating between the two devices. The damper is installed in an annular chamber which is sealed at its periphery and is flanked by two sidewalls of the first torque transmitting device. The damper includes a washer-like partition which is affixed to the second torque transmitting device and has arms extending radially outwardly into the chamber. The radially inner part of the annular chamber is sealed by annular seals having annular carriers borne by the sidewalls at opposite sides of the partition, and deformable annular lips secured to the carriers and bearing upon the respective sides of the partition. The carriers and the lips consist of different materials and the seals serve to prevent penetration of impurities into and/or the escape of lubricant from the chamber.

Abstract: A flexible coupling has two spherical surfaces in rubbing contact to carry thrust, both surfaces having a common center of surface development each surface on an opposed coupling half, each coupling half having jaws extending toward the other half in an interdigitating relationship to conduct torque between the two halves, one half having a rigidly attached sleeve extending to position and support a peripheral seal for fluid tight contact with a peripheral surface on the other half to provide a fluid tight enclosure for the rubbing spherical surfaces and the surfaces of the jaws. A variable volume enclosure is provided as a lubricant reservoir and hydrostatic compensator to feed lubricant to the enclosed spherical surfaces and the surfaces of the jaws.

Abstract: From a chamber (18), which can be supplied by a pressure greasing unit (16), there extend several branched channels (20; 22) which reach the points where the lubricant is to be supplied; a passage with a very small cross section (30, 32) is created between said chamber (18) and each branched channel (20, 22) so that a high pressure is reached inside said chamber (18) and—with injection through the grease nipple (16)—a metered supply of lubricant through each of said passages is thus obtained.

Abstract: A torsional vibration damper, which may be in the form of a twin mass flywheel, and which has an input member (11) designed to rotate generally in a first plane (A1), an output member (12) designed to rotate generally in a second plane (A2), relative rotation of the input and output members being possible against the action of a link-type damper (40). The damper is arranged to allow the first and second planes in which the input and output members rotate to tilt relative to each other during use of the damper to relieve internal stresses. This ability to tilt may be provided by self-aligning main bearings (50) or by the use of self-aligning pivot bearings (65) in the link-type damper.

Abstract: A flexible drive transmission comprising a flexible drive shaft assembly having a first end connectable to a drive motor and a second end connectable to a driven implement, a tubular casing surrounding and coaxial with the drive shaft assembly, a lubricant disposed within the casing, and a lubricant-seal for blocking leakage of lubricant from the second drive shaft assembly end. The drive shaft assembly comprises a flexible elongated drive transmitting member, a first drive coupling fixed to the drive transmitting member at a first end, and a second drive coupling fixed to the drive transmitting member at the second end. The casing rotatably supports the drive shaft assembly and comprises a tubular flexible conduit, and end fitting that permanently secures one drive coupling against axial movement relative to the casing.

Abstract: A watercraft includes an engine having an output shaft. A coupling structure is provided on one end of the output shaft. A driveshaft has an engine connecting axial end portion. The engine connecting end portion provides a first cooperating interlocking structure. A resiliently deformable cushioning structure has a second cooperating interlocking structure and is mounted to the engine connecting end portion with the first and second interlocking structures interlocking with one another to secure the cushioning structure on the engine connecting end portion. The coupling structure couples the output shaft and driveshaft together so that powered rotation of the output shaft is transmitted to the driveshaft. The cushioning structure is positioned between the engine connecting end portion and output shaft such that the cushioning structure prevents the engine connecting end portion from abutting directly against the output shaft during relative movement of the driveshaft and output shaft towards one another.

Abstract: A simple arrangement (60) for lubricating a countershaft brake (58). A countershaft brake (58) is attached to an end of a countershaft (12) of a transmission (2), and a counter gear (16) is mounted on the countershaft (12) near the countershaft brake (58). An oil pool (62) is formed in a transmission housing (61) to immerse at least part of the gear (16) when the counter gear (16) is not rotating. A plate member (63) extends over the oil pool (62) for obstructing oil splashed up by rotations of the counter gear (16). An oil passage (64) is formed for introducing the oil obstructed by the plate member (63) to the countershaft brake (58).

Abstract: A torsional vibration damper includes two modules which rotate relative to each other and a spring chamber which is sealed by providing the first module with a first guide surface which seals the spring chamber radially to the outside, and is spaced from the second module by a gap, with the first guide surface having an axial surface component facing the spring chamber, and by providing a second guide surface which has an axial surface component which faces the spring chamber and covers the gap on the spring chamber side.

Abstract: From a chamber (18), which can be supplied by a pressure greasing unit (16), there extend several branched channels (20; 22) which reach the points where the lubricant is to be supplied; a passage with a very small cross section (30, 32) is created between said chamber (18) and each branched channel (20, 22) so that a high pressure is reached inside said chamber (18) and—with injection through the grease nipple (16)—a metered supply of lubricant through each of said passages is thus obtained.

Abstract: A shaft arrangement includes two shaft ends positioned in end-to-end abutting relation and an outer sleeve surrounding the abutting ends of the two shaft ends. The outer sleeve has through-channels for introducing pressure medium in the interface between the shaft ends and the outer sleeve to create a sleeve expanding effect during mounting and dismounting, and a radial grip acting between the sleeve and the two shaft ends, when the pressure medium has been drained through the through-channels, with the radial grip effecting a radial as well as an axial joining of the shaft ends and the outer sleeve. Each shaft end adjacent its abutting end face is equipped with a grip arrangement that is engaged by a thrust member. The thrust member bridges the abutting end faces and engages the grip arrangement inside the outer sleeve to inhibit the two shaft ends from being axially pulled apart even upon application of a large axial force.

Abstract: A locking cover is designed to protectively enclose a lubricant fitting mounted on a cross of a universal joint and cannot be removed after installation without damaging or destroying the locking cover. The locking cover includes a first half and a second half that are joined together by a hinge. Each half includes a generally U-shaped body portion defined by a central web and a pair of opposed leg portions. The first leg has an outwardly extending tang formed thereon having an outwardly extending barb. The second leg has an opening formed therein that terminates in a shoulder. A cover panel extends between the first and second legs defining a partial cavity therebetween. A pair of posts are provided on the cover panel and extend inwardly into the partial cavity defined by the first and second legs and the cover panel. When the locking cover is closed about the lubrication fitting, the tangs are received within the openings such that the barbs engage the associated shoulders.

Abstract: A driving shaft (3) includes an inner tube (1) and an outer tube (2) having a modified cross-section. These tubes (1, 2) are axially movable but not rotatable relative to each other for transmitting torque therebetween. The driving shaft (3) comprises a partition unit having a pair of partition walls (8a, 8b; 16) hermetically sealing at least part of the inside of the inner tube to define a grease reserving space (8A) in the inner tube on the side of its distal end. The partition wall (8a, 16) on the side of its proximal end is provided with a hose mounting portion (8c; 23) having an oil hole (9). The driving shaft (3) further comprises an oiling port unit (10; 20) provided on a fitting yoke (7) on the side of the proximal end of the inner tube and an oiling conduit unit (11; 24, 25) for connecting the oiling port unit (10; 20) and the hose mounting portion (8c; 23) of the partition unit.