In a constant velocity joint, a center locus of a first ball rolling on a first outer central portion is inclined such that a distance from a central axis of an outer joint member decreases toward a bottom side of the outer joint member. A center locus of a second ball rolling on a second outer central portion is formed in a linear shape and inclined such that a distance from the central axis of the outer joint member increases toward the bottom side of the outer joint member. A center locus of the second ball rolling on the second outer bottom side portion is formed in an arc shape and disposed in the outer joint member at a position radially inwardly from a tangent at a connecting position between the second outer central portion and the second outer bottom side portion.

A fixed ball type joint for a vehicle, which reduces the friction between a cage and an outer race and friction between the cage and an inner race by changing shapes of an inner spherical diameter of the outer race and an outer spherical diameter of the inner race. The fixed ball type joint for a vehicle includes an inner race, an outer race installed at the outside of the inner race, a plurality of balls for transmitting rotational power of the inner race to the outer race, and a cage for supporting the balls. A first inner spherical radius of the outer race is set to be smaller than a second inner spherical radius of the outer race. A first outer spherical radius of the inner race is set to be larger than a second outer spherical radius of the inner race.

Disclosed are a method of manufacturing cage for a constant velocity joint and a cage for a constant velocity joint manufactured using the same for providing a cage having improved hardness, strength, and elongation while having a structure with a uniform core part and surface and for ensuring economic feasibility by reducing manufacturing time. The method includes a cutting operation of forming a structure having an outer shape by cutting a cylindrical pipe, forming an outer circumference of the cut structure to have a curved surface thereon, performing a turning operation on a surface of the formed structure, a punching operation of forming a window in the surface of the structure on which the turning operation is performed, a broaching operation of processing an edge of the window formed via punching, and a heat treatment operation of fully hardening the completely broached cage via austempering.

A longitudinal shaft arrangement for a motor vehicle has at least a first shaft and a second shaft, wherein the first shaft has a journal with a first end and a second end, and a constant velocity ball plunging joint for connecting the first shaft to the second shaft, wherein a joint inner part of the constant velocity ball plunging joint is mounted at the second end and a joint outer part is arranged on the second shaft, wherein the joint outer part has a first stop for a cage of the constant velocity ball plunging joint in an end zone of a plunging region, with the result that the cage is brought into contact with the first stop when the first shaft and the second shaft are pushed into one another.

A constant velocity joint assembly with a crash collapse feature. The constant velocity joint assembly includes an inner race, an outer race, a cage and one or more torque transfer elements. The inner race is drivingly connected to a first shaft and the outer race is connected to a second shaft. Circumferentially extending along at least a portion of an inner surface of the outer race is one or more outer race torque transfer element grooves. One or more crash collapse features circumferentially extend radially inward from at least a portion of the inner surface of the outer race and are disposed directly adjacent to the one or more outer race torque transfer element grooves in the outer race. The one or more crash collapse features are disposed entirely between the one or more outer race torque transfer element grooves and do not extend axially beyond the grooves.

Provided is a cage (5, 65, 95) for a constant velocity universal joint, which is formed into a ring shape with a substantially uniform thickness, including a plurality of pockets (20, 80, 110) formed in a circumferential direction of the cage (5, 65, 95), for receiving torque transmitting balls, respectively, the cage (5, 65, 95) being formed of carbon steel including 0.41 to 0.51 mass % of C, 0.10 to 0.35 mass % of Si, 0.60 to 0.90 mass % of Mn, 0.005 to 0.030 mass % of P, and 0.002 to 0.035 mass % of S, with the balance being Fe and an element inevitably remaining at the time of steelmaking and refining, the cage (5, 65, 95) being subjected to carburizing, quenching, and tempering as heat treatment, each of the plurality of pockets (20, 80, 110) having a side surface (23, 83, 113) finished after the heat treatment.

A cage for a constant-velocity ball joint is annular and has cage windows arranged spaced apart from one another along a circumferential direction for guiding balls of the constant-velocity ball joint; wherein each cage window has at least on one side a ball guiding surface facing in an axial direction. The cage can be produced by: a) providing a cage having cage windows; b) applying at least one compressive force via an outer circumferential surface of the cage, facing in a radial direction, in a first region of at least one ball guiding surface of at least one cage window; c) deforming the cage in the first region of the at least one ball guiding surface, so that the at least one ball guiding surface is displaced inwardly in the radial direction with respect to an adjacent second region of the cage.

A tripod constant-velocity joint includes: an outer joint member having a cavity elongated in a longitudinal direction and three roller tracks; an inner joint member having a center body and three journals outwardly radially protruded from the center body; and three roller assemblies respectively coupled to the journal in a state of being respectively disposed in the roller tracks. The respective roller assembly comprises: an inner race which is connected to the journal and is provided with a first inner ball groove and a second inner ball groove on both lateral sides thereof; a first ball array and a second ball array respectively having a plurality of balls which are respectively disposed in the first inner ball groove and in the second inner ball groove; and a ball cage which restricts movements of the first ball array and the second ball array in a longitudinal direction thereof.

A protrusion shaft portion is provided on an end surface of a shaft on a joint fitting side, and a recess into which the protrusion shaft portion is fitted is formed in an inner surface of a bottom wall of the mouth section of the outer joint member. The recess allows angular displacement of the shaft to a predetermined operating angle, and the protrusion shaft portion is brought into contact with a wall surface of the recess at the predetermined operating angle so that angular displacement exceeding the predetermined operating angle is regulated. Allowable angular displacement in the recess is within a range of preventing the shaft from being brought into contact with an opening portion of the mouth section.

A constant velocity joint comprises an outer joint part with a longitudinal axis and first and second outer ball tracks. The outer joint part comprises an attachment side and an aperture side. An inner joint part has a longitudinal axis and first and second inner ball tracks. with a torque transmitting ball 14 in each pair of tracks, and a ball cage 15 with cage windows 18 in which the balls 14 are held. In each angular position of the constant velocity joint 11 an opening angle is enclosed between an outer tangent and an inner tangent at the ball. At least one of the first and second pairs of tracks is designed such that, within a small articulation angle range comprising at least the joint central plane, at at least an articulation angle, an opening angle amounts to zero, and within a greater articulation angle range, an aperture-side opening angle of a first pair of tracks widens in the opposite axial direction relative to the aperture-side opening angle of a second pair of tracks.