Abstract: A joint assembly comprising a hollow outer joint member including a wall forming an open end and a closed end, the outer joint member having a plurality of tracks in its inner surface. An inner joint member received in the outer joint member and plurality of torque-transmitting elements, whereby the plurality of torque-transmitting elements rotationally engage with the inner joint member and the tracks of the outer joint member. Each track comprises two opposing side walls and a torque-transmitting element engages these side walls of the outer joint member and is configured to move in an axial direction along the side walls. Furthermore, a boot covering the open end of the outer joint member and at least one restrictor configured to engage at least one of the plurality of torque-transmitting elements to militate against undesired displacement of the inner joint member with respect to the outer joint member.

Abstract: Bellows (10) for the protection of parts of a transmission joint (40), wherein the bellows (10) is in the form of a hollow tubular body that is open at each of its ends and has a fastening region (21;22) at each of its open ends. The two fastening regions (21;22) have cross-sections with different outer diameters and run essentially in parallel to a longitudinal axis (X) of the bellows (10), and these end side fastening regions (21;22) are interconnected by a deformable wall (30) that runs transverse to the longitudinal axis (X) of the bellows (10), wherein the deformable wall (30) forms at least one fold (32) between the two fastening regions (21;22).

Abstract: A joint assembly comprising a hollow outer joint member including a wall forming an open end and a closed end, the outer joint member having a plurality of tracks in its inner surface. An inner joint member received in the outer joint member and plurality of torque-transmitting elements, whereby the plurality of torque-transmitting elements rotationally engage with the inner joint member and the tracks of the outer joint member. Each track comprises two opposing side walls and a torque-transmitting element engages these side walls of the outer joint member and is configured to move in an axial direction along the side walls. Furthermore, a boot covering the open end of the outer joint member and at least one restrictor configured to engage at least one of the plurality of torque-transmitting elements to militate against undesired displacement of the inner joint member with respect to the outer joint member.