Abstract: A telescopic rod structure includes an upper rod and a lower rod. The upper rod includes a first rod body and a second rod body. A diameter of the first rod body is less than a diameter of the second rod body. A rod stepped surface is formed between the first rod body and the second rod body. An outer wall of the second rod body defines a guide groove. The lower rod defines a first through hole and a second through hole. A diameter of the first through hole is less than a diameter of the second through hole. A hole stepped surface is formed between the first through hole and the second through hole. A rib is arranged on the second through hole. The second rod body is sleeved in the second through hole. The first rod body upwards passes through the first through hole.

Abstract: Driveshaft dampers are provided for use in driveshafts to dampen or attenuate aspects of noise, vibration, and harshness (NVH). Systems and methods for making and using driveshaft dampers are further provided. The driveshaft dampers may be made using a helical-winding process and include attenuation strips with elongate protrusions. Various embodiments of helically-wound driveshaft dampers include a core and one or more attenuation strips helically wound around the core.

Abstract: A coupling includes a claw part and an intermediate piece. The intermediate piece includes a tube piece produced from aluminum or from an aluminum alloy, and a buffer part received in an end region of the tube piece and including elastic damping elements for receiving the claw part. The damping elements are surrounded by the end region radially at an outside in a circumferential direction. The buffer part includes a part which is different from the damping elements and is produced from a material of a brittleness which is greater than a brittleness of the tube piece.

Abstract: Attenuation strips are provided for use in driveshaft dampers, and driveshaft dampers are provided for use in driveshafts to dampen or attenuate aspects of noise, vibration, and harshness (NVH). Systems and methods for making and using driveshaft dampers are further provided. The driveshaft dampers may be made using a helical-winding process and include attenuation strips with elongate protrusions. Various embodiments of helically-wound driveshaft dampers include a core and one or more attenuation strips helically wound around the core.

Abstract: A constant velocity joint for a vehicle is provided and may include hub housing, a bearing assembly, a power transmission member, and a boot. The hub housing is combined with the constant velocity joint in the hub housing. The bearing assembly includes an inner race fitted on an outer surface of the hub housing, an outer race spaced a predetermined distance apart from the inner race and fitted on a knuckle. The power transmission member is disposed between the inner race and the outer race. The boot has a band seat positioned on the inner race and a fixing band fixed on a top of the boot and the boot is coupled to the inner race by the fixing band. The boot further includes a boot lip that is formed at one end or both ends of the band seat and protrudes toward the knuckle.

Abstract: A threaded tubular connection includes a box member having a female external thread, a female internal thread, and a female intermediate sealing surface between the female external thread and the female internal thread, and a pin member having a corresponding male external thread, a male internal thread, and a male intermediate sealing surface, such that male threads interlock by thread engagement with female threads, and intermediate sealing surfaces form an intermediate metal-to-metal seal when the threaded tubular connection is made up. The box member includes a minimal outer diameter at the intermediate metal-to-metal seal location, the minimal outer diameter being smaller than respectively an external and an internal outer diameter respectively being located above the female external thread and the female internal thread.

Abstract: A coupling assembly adapted for use on an item of equipment having a first component and a second component and including an eccentric axis plate having a first surface that is operatively connected to the first component and a second surface having a drive tang extending therefrom, a slider plate having a first surface that is in operational contact with the drive tang and having a first groove therein and a second surface having a second groove therein, and an adapter plate having a first surface that is in operational contact with the slider plate second surface and having an adapter plate tang extending therefrom and a second surface that is operatively connected to the second component. The longitudinal axis of the first component and the longitudinal axis of the second component are non-parallel, and the assembly is adapted to couple the first component and the second component.

Abstract: A tube for a power transmission shaft is made of fiber-reinforced plastic, rotated to transmit power, and includes a main body in a shape of cylinder about an axis, wherein the main body has an outer diameter thereof gradually decreasing from a central portion thereof toward both ends thereof, and has a thickness thereof gradually decreasing from said both ends toward the central portion.

Abstract: A gimbal joint may employ a plurality of wear sleeves, each disposed between a pin or pin receptive bore of a first structure and a corresponding bore or pin of a second structure and between another pin or bore of the second structure and a corresponding bore or pin of a third structure. Each of these structures may be adapted to rotate in a single plane, with one structure adapted to also tilt about a first axis, and one other structure adapted to tilt about a second axis. Each integral flanged wear sleeve may comprise a right circular hollow cylindrical body portion, which may be interiorly sized to be retained on one of the pins and externally sized to be retained in one of the pin receptive bores, and a flange portion may radiate from one end of the cylindrical body portion.

Abstract: A constant velocity joint boot assembly includes a flexible boot having a flexible portion extending between a first end and a second end along an axis. The first end is disposed about a portion of a constant velocity joint and the second end is disposed about a portion of a shaft assembly. The first end defines a skirt having an engineered portion that elastically absorbs and/or reflects impact energy.

Abstract: A flex coupling assembly for coupling a first shaft to a second shaft of a shaft assembly. The flex coupling assembly decouples axial and torsional stiffness from bending stiffness of the shaft assembly, thereby dampening the transmission of noise and vibration between the first and second shafts. The flex coupling assembly includes an inner housing subassembly and an outer housing subassembly. The inner housing subassembly includes an inner housing and a resilient flex coupling disposed in an outer housing cavity of an outer housing of the outer housing subassembly. A retention member is fixed to an outer housing to retain the inner housing subassembly in the outer housing cavity. The inner and outer housing subassemblies can rotate and translate relative to a common axis, while the inner and the outer housings restrict bending between the inner and outer housing subassemblies, thereby restricting bending between the first and second shafts.

Abstract: A tubular body of a power transmission shaft made of fiber-reinforced plastic is provided with a cylindrical main body portion, and a second connection portion continuous with an end portion of the main body portion and to which a stab shaft is joined. The main body portion is formed with a weak portion which fails when a load input in the direction of an axial line exceeds a predetermined value. A linear rupture portion is formed on an outer peripheral surface of the weak portion. In the present configuration, cost reduction and weight reduction of the tubular body are made possible, and the tubular body fails infallibly when a predetermined load is input to the tubular body in the direction of the axial line.

Abstract: A joint for the angularly adjustable drive-connection of a cylinder block and a driveshaft of a hydrostatic bent axis piston unit. The joint has a shank which is rotatable about its longitudinal axis defining a joint axis, on both ends of the shank roller carriers project radially and basically perpendicular to the joint axis. On each roller carrier a roller is provided rotatable around a roller axis. The rollers are secured in axial direction against slipping-off of the roller carriers by means of an embossed area located axially outside of the roller on the respective distal end portion of the roller carrier.

Abstract: A flexible unit absorbing misalignment and transmitting torque from a driving shaft to a driven shaft is provided between a pair of flanges individually provided on each of the driving shaft side and the driven shaft side, both the driving shaft and the driven shaft being hollow. A communication passage letting hollow regions of the driving shaft and the driven shaft communicate with each other to form a circulation space for a cooling fluid is provided in the flexible unit. The flow of the cooling fluid cooling a driving source driving and rotating the driving shaft from the inside is created in the circulation space. A seal portion seals between the circulation space and an outside space to prevent leakage of the cooling fluid from the circulation space to the outside space.

Abstract: A damper device includes: an input element coupled to an engine via a clutch; an intermediate element; an output element coupled to an input shaft of a transmission; a first elastic body that is disposed between the input element and the intermediate element; and a second elastic body that is disposed between the intermediate element and the output element and that acts in series with the first elastic body. When a total moment of inertia of the output element and a rotation element that rotates integrally with the output element on the engine side with respect to the input shaft is J2, and a total moment of inertia of all rotation members included between the input shaft and a differential gear coupled to an output shaft of the transmission is JTM, 0.12?J2/(J2+JTM)?0.5 is satisfied.

Abstract: A coupling includes left and right side members, and a centre member that is disposed between the side members. The centre member has a main axis of rotation, and includes holes disposed about the main axis at a radius. The side members each have a common offset axis of rotation parallel to and offset from the main axis. Each side member includes holes congruent with the holes in the centre member and disposed about the offset axis at the radius. Torque transfer elements extend through the holes of the centre member and into the holes of the side members. The torque transfer elements rotate about a third axis parallel to and disposed midway between the main axis and the offset axis, and transfer torque between the centre member and the side members through rolling contact between the torque transfer elements and the holes of the centre and side members.

Abstract: A constant velocity joint assembly includes a constant velocity joint. The constant velocity joint assembly also includes a sealing boot in contact with the constant velocity joint. The constant velocity joint assembly further includes a boot protector disposed on a radially outer surface of a portion of the sealing boot. The constant velocity joint assembly yet further includes a first fastener coupled to the boot protector to secure the boot protector to the constant velocity joint.

Abstract: A drive shaft has a tubular member extending between axial ends and being hollow. The tubular member is formed of a thermoplastic matrix with embedded fibers. At least one ring member is positioned radially of the tubular member. A method is also disclosed.

Abstract: A hub built-in type constant velocity apparatus includes a hub housing with a constant velocity joint coupled inwardly, an internal race coupled to an external circumferential surface of the hub housing, and a pre-load ring coupled to the external circumferential surface of the hub housing and located on a side of the internal race, wherein an end portion of the hub housing is formed to be rolled upwards toward the pre-load ring to form a forming portion coupled to the pre-load spring for applying pressure to the pre-load ring and the internal race.

Abstract: An outer part for homokinetic joints and rolling bearings, the outer part having, at least at one of its end faces, an annular sealing face. Axially running bores for receiving fastening means are formed in the end faces of the outer part, the sealing face extending in the region of the bores radially between the bores and the inner diameter of the outer part. A contour protruding from the sealing face is arranged on the end-face sealing face(s) of the outer part, against which contour the seal presses when fitted. Said contour, which protrudes nose-like in longitudinal cross-section, provides even at the pre-assembled stage a small seating surface for the seal, such that the contour is fixed in position, without the use of an adhesive, even under small pressing forces, such as those usually applied during the preassembly of the module to which the outer part belongs.