Abstract: A plunging type constant velocity universal joint 1 for a propeller shaft includes an outer joint member 2, an inner joint member 3, eight torque transmitting balls 4, and a cage 5. A center of curvature O1 of a spherical outer surface 12 and a center of curvature O2 of a spherical inner surface 13 of the cage 5 each have an equal and axially opposite offset (f) with respect to a center O3 of pockets 5a. A ratio f/PCDBALL between the offset (f) of the cage 5 and a pitch circle diameter (PCDBALL) of the torque transmitting balls 4 is 0.07 or more and 0.09 or less.

Abstract: A power transmission shaft has a shaft member having, on an outer peripheral surface thereof, a male spline; a cylindrical member having, on an inner peripheral surface thereof, a female spline; and a seal member provided in a pressed state between an outer peripheral seal surface formed on the outer peripheral surface of the shaft member and an inner peripheral seal surface formed on the inner peripheral surface of the cylindrical member. The cylindrical member is spline-engaged with the shaft member by one end side of the shaft member being inserted into the cylindrical member from an other end side of the cylindrical member. Axial direction shock is absorbed by sliding of the splines. The outer peripheral seal surface is positioned at the other end side with respect to the male spline, and the inner peripheral seal surface is positioned at the other side with respect to the female spline.

Abstract: A method of manufacturing a torsion bar includes cutting a stock torsion bar material to a desired torsion bar length to form the torsion bar. The method also includes forming a first end portion by removing material from the torsion bar to form a first annular groove extending circumferentially about the torsion bar. The method further includes forming a second end portion by removing material from the torsion bar to form a second annular groove extending circumferentially about the torsion bar.

Abstract: A constant velocity joint comprises an outer joint part with outer ball tracks and an inner joint part with inner ball tracks. An outer ball track and an inner ball track respectively form a pair of tracks with one another; in each, a torque-transmitting ball is guided. The torque-transmitting balls are accommodated in a ball cage with circumferentially distributed cage windows. In any angular position of the constant velocity joint an opening angle is formed between an outer tangent to the outer ball track and an inner tangent to the inner ball track. At an articulation angle of zero degrees the opening angle is greater than zero degrees. A central articulation angle range is defined with articulation angles less than fifteen degrees. The opening angle increases by at least two degrees within the central articulation angle range, and is less than twelve degrees for all articulation angles within the central articulation angle range.

Abstract: A damper device includes a damper unit and a torque limiter unit. The damper unit includes first and second plates each including a plurality of window portions, a hub flange including a plurality of window holes, and a stopper mechanism. The first plate includes an engaging portion and a fixing portion fixed to the second plate. The engaging portion and the fixing portion are disposed radially outside the plurality of window portions. The hub flange includes a protrusion disposed circumferentially between and radially outside adjacent two of the plurality of window holes. The stopper mechanism is configured to be actuated by contact of the protrusion with the engaging portion. A fixation member, by which the first plate and the torque limiter unit are fixed, is disposed circumferentially between adjacent two of the plurality of window portions as seen in a direction along a rotational axis.

Abstract: Unlaminated bearings (or Torque Transfer Elements, or TTEs) are disposed to slide and displace within pockets (or “housing cavity receptacles”) provided in the internal periphery of a housing in which an articulating shaft is received. As the shaft “tilts” about its untilted axial centerline during misaligned rotation, convex curved bearing surfaces on shaft pins slidably rotate against corresponding concave curved bearings surfaces on the T as received in the housing cavity receptacles. Further, substantially flat surfaces on the TTEs are disposed to slidably displace against corresponding bearing surfaces on the housing cavity receptacles as the shaft tilts and the convex curved bearing surfaces on the shaft pins slidably rotate against the concave curved bearing surfaces on the TTEs. The sliding displacement of TTEs with respect to the housing cavity receptacles during articulated rotation is in a direction generally parallel to the shaft's untilted axial centerline.

Abstract: An apparatus for correcting an imbalance in a rotating shaft along with a method for correcting the imbalance in a rotating shaft is identified. The apparatus includes a joint assembly having a first joint member that is drivingly connected to a second joint member by one or more third joint members. At least a portion of a first shaft may be drivingly connected to at least a portion of the first joint member and at least a portion of a second shaft may be drivingly connected to at least a portion of a second end portion of the second join member. A boot can may be connected to at least a portion of a first end portion of the second joint member. One or more balancing elements may then be connected to at least a portion of the boot can and/or the second joint member of the joint assembly.

Abstract: An electrically insulated shaft coupling may include a first metallic portion, a second metallic portion, and an electrically insulating portion that separates the first metallic portion and the second metallic portion. The first metallic portion may include a first plurality of splines configured to interface with splines of a first rotating shaft, and the second metallic portion comprises a second plurality of splines configured to interface with splines of a second rotating shaft.

Abstract: A torque limiter embedded damper device includes a torque limiter unit and a damper unit. The damper unit includes a first rotor, a second rotor, and a stopper mechanism. The second rotor includes a flange axially opposed to the first rotor. The stopper mechanism restricts an angle of relative rotation between the first rotor and the second rotor to a predetermined angular range. The stopper mechanism includes a cutout and a stop pin. The cutout is provided in the flange of the second rotor. The stop pin is fixed to the first rotor. The torque limiter unit includes a friction plate having an annular shape. The annular friction plate is fixed at an inner peripheral part thereof to an outer peripheral part of first rotor or the second rotor by a fixation member. The fixation member is fastened in a state of penetrating the cutout of the flange.

Abstract: A transmission assembly includes a cavity in a female U-joint having a groove that extends radially outward from an inner diameter thereof and bounded by three planar drive surfaces. A male U-joint member includes a drive end includes a longitudinal rectangular extension protruding radially outward from a periphery and positioned within the groove of the cavity. The drive end includes a longitudinal rectangular insert has a portion forming the extension positioned within the groove and retained within the drive end. The extension includes (1) opposing longitudinal sides, each forming a side crest disposed between a pair of angular side surfaces that extend axially from the side crest inward toward a center of the extension, and (2) a top side forming a top crest disposed between a pair of angular top surfaces that extend axially from the top crest downward toward the center of the extension.

Abstract: A constant-velocity joint assembly for a power tool includes an output shaft and a coupling structure configured to drive the output shaft. The output shaft and the coupling structure form a joint configured to enable angling of the output shaft relative to the coupling structure at constant rotational speed, and the coupling structure is provided with a torque transducer configured to detect a torque acting on the coupling structure provided by the output shaft.

Abstract: A constant velocity joint comprises an outer joint part with outer ball tracks, an inner joint part with inner ball tracks, wherein respectively an outer ball track and an inner ball track form a pair of tracks with each other; a torque-transmitting ball in each pair of tracks; a ball cage in which the torque-transmitting balls are received; wherein a first articulation angle range is defined comprising articulation angles of less than twenty degrees, and a second articulation angle range comprising articulation angles greater than twenty degrees; wherein an opening angle within the first articulation angle range increases as the articulation angle (?) increases, and wherein a first mean opening angle increase of the first articulation angle range is greater than a second mean opening angle increase of the second articulation angle range.

Abstract: A torque limiter device for limiting a torque transmitted between a power source-side member and an output-side member is disclosed. The torque limiter device includes a cover, a friction disc and an urging member. The cover includes a coupling portion, a tubular portion and a support portion. The coupling portion is coupled to the power source-side member. The tubular portion axially extends from the coupling portion. The support portion extends from the tubular portion to an inner peripheral side. The friction disc is accommodated in an inner peripheral space of the tubular portion of the cover, and is pressed toward the power source-side member. The urging member is supported by the support portion of the cover, and urges the friction disc toward the power source-side member.

Abstract: A composite shaft includes a shaft body formed from a plurality of polymer impregnated fiber-reinforced material layers having an annular outer surface and an annular inner surface defining a passage. A plurality of internal support members extend along the passage. Each of the plurality of internal support members includes a support body formed from molded plastic having an outer surface that abuts the annular inner surface of the support body, a first end, an opposing second end, and a circular end wall arranged at one of the first end and the opposing second end.

Abstract: An inner member of a constant velocity joint includes holding portions that hold roller assemblies. Each of the holding portions includes a first orthogonal part and a second orthogonal part brought into contact with an inner roller of the roller assembly. When first and second transmission shafts are coaxially disposed, top parts of the first and second orthogonal parts are brought into contact with the inner circumferential wall of the inner roller. The first and second orthogonal parts are each sectioned into a first curved surface extending from the proximal end of the holding portion to the top part and a second curved surface extending from the top part to the distal end of the holding portion. The curvature radius of the second curved surfaces is larger than the curvature radius of the first curved surfaces.

Abstract: A constant velocity joint for a vehicle. The constant velocity joint includes: an axle housing fixed to a knuckle by a hub bearing, and a joint assembly inserted into the axle housing to transmit power from a shaft to the axle housing through a plurality of joint balls. In particular, the axle housing includes an extension portion which is extended from an end portion of the axle housing in a radial direction of the axle housing, and the extension portion provides a pressing force to an inner race of the hub bearing in an axial direction of the axle housing. The constant velocity joint further includes a boot surrounding an outer side of the extension portion and coupled to the extension portion so as to form a restraining force between the extension portion and the boot in the axial direction.

Abstract: An electric power steering assembly includes a rotor assembly that is rotatable about a longitudinal axis. The rotor assembly has an outer surface and an inner surface. The rotor assembly defines a plurality of magnet pockets that are disposed proximate the outer surface. The inner surface defines a plurality of rotor teeth.

Abstract: A dust cover for a steering apparatus of a vehicle includes a first cover coupled to an intermediate shaft in a state in which a bearing member is interposed and fixed to a vehicle body panel. The dust cover also includes a second cover coupled to the intermediate shaft in the state in which the bearing member is interposed and fixed to the vehicle body panel together with the first cover in a state of being bonded to the first cover. A tight contact rib in a long continuous shape along a periphery of the intermediate shaft is formed to protrude from the first cover such that the tight contact rib maintains airtightness between the first cover and the vehicle body panel in a state of being always in a tightly adhered state with the vehicle body panel.

Abstract: A coupling has: a first coupler rotatable about an axis and defining first connections distributed about the axis; a second coupler defining second connections distributed about the axis, the second connections offset from the first connections; and segments distributed about the axis and extending radially from the first connections to the second connections, a segment of the segments having a first end engaging a first connection of the first connections and a second end engaging a second connection of the second connections, the first end circumferentially offset from the second end, a face of the segment abutting against a face of the first coupler when the segment is inserted into the first connection in a first orientation such that a penetration depth of the segment into the first connection in the first orientation is less than the penetration depth in a second orientation opposite the first orientation.

Abstract: A torque transmitting shaft includes a first member and a second member. The first member extends along an axis and has an inner surface extending between a first end and a second end. The inner surface defines a plurality of first engagement elements disposed proximate the first end. The second member extends along the second axis and has a first end portion and an intermediate portion extending from the first end portion. An end of the intermediate portion is fixedly attached to the second end. The first end portion has a first spline portion and each member of the first spline portion is received within corresponding engagement elements of the plurality of first engagement elements.