Abstract: A folding bellows arrangement, e.g., for a tripod joint unit, may comprise a joint outer part with a groove, a folding bellows with a joint collar region for attachment to said joint outer part, and an adapter ring. The joint collar region may comprise a joint binder seat region. The adapter ring may have an inner surface that is matching in a cross section to an outer contour of the joint outer part. On an inner area of the joint collar region and within the joint binder seat region of the folding bellows, at least one bead may be arranged. The bead matching a groove may be arranged on an outer area of the adapter ring. The groove of the adapter ring may correspond to at least one first sealing lip arranged on an inner area of the adapter ring, and at least one second sealing lip may be arranged on the inner area of the adapter ring. The first and second sealing lips may be arranged within the groove of the joint outer part.

Abstract: A folding bellows arrangement for a tripod joint unit is described. The bellows arrangement comprises a joint outer part with a groove; a folding bellows with a joint collar region for attachment to said joint outer part, and an adapter ring. The joint collar region comprises a joint binder seat region. The adapter ring has an inner surface that is matching in a cross section to an outer contour of the joint outer part. On an inner area of the joint collar region and within the joint binder seat region of the folding bellows, at least one bead is arranged. The bead matching a groove is arranged on an outer area of the adapter ring. The groove of the adapter ring corresponds to an at least one first sealing lip arranged on an inner area of the adapter ring, and wherein on the inner area of the adapter ring at least one second sealing lip is arranged. The first and second sealing lips are arranged within the groove of the joint outer part.

Abstract: A sealing boot intended to ensure the sealing of a transmission joint connecting two shafts. The sealing boot includes a boot body having a bead at each end to contact and seal the periphery of the shaft or an element of the joint integral with the shaft. Each bead includes a radial outer shoulder forming a transition between the bead and the boot body, and a bearing surface extending from the shoulder and adapted to receive an element for fixing the bead against the shaft or associated joint element. The bearing surface is extended without an increase in its external diameter as far as the end of the bead. The shoulder forms a stop for longitudinal positioning during the mounting of the fixing element.

Abstract: A sealing boot intended to ensure the sealing of a transmission joint connecting two shafts. The sealing boot includes a boot body having a bead at each end to contact and seal the periphery of the shaft or an element of the joint integral with the shaft. Each bead includes a radial outer shoulder forming a transition between the bead and the boot body, and a bearing surface extending from the shoulder and adapted to receive an element for fixing the bead against the shaft or associated joint element. The bearing surface is extended without an increase in its external diameter as far as the end of the bead. The shoulder forms a stop for longitudinal positioning during the mounting of the fixing element.

Abstract: The invention concerns a bellows (2) comprising a bellows body (10) provided at each end with a lug (12) designed to provide sealed contact with the periphery of a shaft or an element (7) of the joint integral with a shaft. Each lug (12) comprises a radially outer shoulder (16) providing transition between the lug (12) and the bellows body (10), and a support surface (20) designed to receive a member (22) such as a ring or a clamp, for tightly fixing the lug against the shaft or the associated element. The support surface (20) extends from the shoulder (16) and extends further up to the end of the lug (12) without any increase in diameter. The shoulder (16) is adapted to form a longitudinal positioning stop when the fixing member (22) is mounted. The invention is applicable to bellows with lugs fixed by swage-crimping of a closed ring.

Abstract: The invention concerns a bellows (7) designed to be coupled by a front end region (30) to a first rotary member (8) and by a rear end region (34) to a second rotary member (6). The bellows rear end region (34) is provided, over at least part of its periphery whereof the axial curve has a transverse contour with inflection points, a radially projecting lug (36) designed to be housed in a groove (20) of the second rotary member to retain axially the bellows rear end region (34) relative to the second rotary member (6), and sealing means designed to be supported on the second rotary member. The sealing means are axially located on the same side as at least part of the lug (36) retaining the bellows rear end region (34). The invention is applicable to tripod constant velocity universal joints.

Abstract: This transmission joint comprises a first and a second rotary member, a boot (7) connected by a front end region to the first rotary member and by a rear end region (33) to the second rotary member (6), and means for axially retaining the rear end region of the boot with respect to the second rotary member which comprise a retaining enlargement (20) and a groove (38) for housing the retaining enlargement, the rear end region (33) of the boot and the second rotary member having matching transverse outlines of which the directrix curves exhibit points of inflection. The enlargement is situated on the periphery of the second rotary member and spaced axially from the front end (22) of the second rotary member, and the groove (38) is formed on the periphery of the boot.

Abstract: a sliding universal joint has a male element (1), especially a tripod, intended to be fixed to a first shaft and including arms (6) on each of which a roller (3) with a spherical external surface is mounted so that it can rotate and slide. A female element (2) intended to be fixed to a second shaft and defines on each side of each spherical roller two runway paths (7,8). A first of these runway paths (7) interacts directly with the spherical roller and axially positionins it. Between each spherical roller (3) and the associated second runway path (8) there is interposed an anti-vibration assembly (4) which, on the inside, includes a spherical surface which substantially matches the external surface of the spherical roller and interacts with this surface. This assembly (4) moves along the second runway path (8).

Abstract: An intermediate roller element for a universal joint includes a strip (12), one face of which includes at least one longitudinal roller track and balls (20) which roll along the track. The balls are held by a cage (22) produced in the form of a plate (24) which extends in a plane substantially parallel to the overall plane of the track (16), and includes cells in which the balls (20) are received. The cage includes portions (28, 32, 34) joining the cage (22) to the strip in order to form a unitary sub-assembly.