Abstract: This homokinetic joint includes a roller assembly (9) having an inner ring (10) with a ring end surface (16) which is directed in a direction (S1), an outer roller (11) having a roller end surface (32) which is directed in the direction (S1), a needle ring (12), and a mechanism (13) for axially retaining the needle ring (12) on the inner ring (10). The ring end surface (16) is axially offset relative to the roller end surface (32) in the direction (S1).

Abstract: A constant velocity joint includes a male element (4) having at least two trunions (8) and a shaft (12) with an outside diameter (DAE). A respective wheel (32) is mounted to rotate on each trunion (8). The joint also includes a female element (20) having, for each wheel (32), a pair of paths (22, 24) and defining a path primary circle (PCD). The ratio of the outside diameter (DAE) of the shaft (12) to the path primary circle diameter (PCD) is greater than 0.55.

Abstract: This homokinetic joint includes a roller assembly (9) having an inner ring (10) with a ring end surface (16) which is directed in a direction (S1), an outer roller (11) having a roller end surface (32) which is directed in the direction (S1), a needle ring (12), and a mechanism (13) for axially retaining the needle ring (12) on the inner ring (10). The ring end surface (16) is axially offset relative to the roller end surface (32) in the direction (S1).

Abstract: A constant velocity joint includes a male element (4) having at least two trunions (8) and a shaft (12) with an outside diameter (DAE). A respective wheel (32) is mounted to rotate on each trunion (8). The joint also includes a female element (20) having, for each wheel (32), a pair of paths (22, 24) and defining a path primary circle (PCD). The ratio of the outside diameter (DAE) of the shaft (12) to the path primary circle diameter (PCD) is greater than 0.55.

Abstract: A constant velocity transmission joint having a male element (10) having a plurality of arms (14); a female element (20) defining a pair of facing tracks (22, 23) for each arm (14), which tracks are situated on opposite sides of the arm; and, mounted on each arm, a mechanical transmission member (30) that is movable in the longitudinal direction of the pair of tracks (22, 23), being held axially by the tracks, and establishing a connection with the arm that is swiveling and axially movable along the axis (Y—Y) of the arm. The transmission member includes a circularly symmetrical outer roller placed between the corresponding tracks to roll on one or other of them. For each arm, the outside profile in meridian half-section of the outer roller (32) comprises two arcs (32A, 32B) having curvature of the same sign and cooperating with two arcs (22A, 22B) of the substantially complementary profile of the associated tracks (22, 23) so as to form two spaced-apart contact zones (37A, 3TB).

Abstract: The invention concerns a constant velocity tripod joint for motor vehicle transmission systems comprising a male element (2) including several branches (4), a female element (8) defining for each branch a pair of tracks (9A, 9B), symmetrical with respect to a plane (P), and, mounted on each branch, a mechanical transmission member (11) comprising an outer roller (12) designed to run on one of the corresponding tracks. Each track comprises a central zone (14A, 14B) having a rectilinear transverse profile and inclined at an angle a relative to the plan (P) and a bearing (15A, 15B) for maintaining the roller radially. Each roller has a peripheral surface whereof the central zone (31) is conical and matching the central zones of the tracks, and a front surface (32) adapted to be urged into contact more or less perpendicularly with said bearing surfaces of the tracks under the effect of a driving torque. The invention is applicable to constant velocity tripod joints for transmission systems in motor vehicles.

Abstract: The joint comprises: a male element (10) having a plurality of arms (14); a female element (20) defining a pair of facing tracks (22, 23) for each arm (14), which tracks are situated on opposite sides of said arm; and, mounted on each arm, a mechanical transmission member (30) that is movable in the longitudinal direction of said pair of tracks (22, 23), being held axially by said tracks, and establishing a connection with said arm that is swiveling and axially movable along the axis (Y-Y) of the arm, said transmission member including a circularly symmetrical outer roller placed between the corresponding tracks to roll on one or other of them. For each arm, the outside profile in meridian half-section of the outer roller (32) comprises two arcs (32A, 32B) having curvature of the same sign and co-operating with two arcs (22A, 22B) of the substantially complementary profile of the associated tracks (22, 23) so as to form two spaced-apart contact zones (37A, 37B).

Abstract: A rolling bearing assembly (9) comprising an inner ring (10), an outer roller (11) surrounding the inner ring, a needle race (12) placed between the inner ring and the outer roller to allow their relative pivoting about a common longitudinal axis (Z—Z), and an axial retention assembly (13) for retaining the outer roller and the needle race with respect to the inner ring. The retaining assembly comprises at least one split thrust washer (16) which extends radially from a radially outer peripheral region (26) of an axially outer surface of the inner ring towards a retaining groove (24) formed radially inside the outer roller. The split washer comprises an annular central zone (17) for axially retaining the needle race, and at least one series of peripheral supports (18, 19) which are spaced apart and which radially extend the annular central zone.

Abstract: The invention concerns a mechanical transmission member comprising an inner ring (9), an outer ring (11) and pivot linkage means (12) for coupling the inner and outer rings. The pivot linkage means compromise means for axially retaining the outer ring relative to the inner ring, wherein are comprised at least an axially abutment collar (30, 31) co-operating with an annular radially internal groove (16, 17) of the outer ring and with an axially external surface (23, 24) of the inner ring, and at least an elastic snap ring (32, 33) co-operating with an axially external retaining surface (18, 19) of a groove and with the abutment collar support surface (42, 43). The invention is applicable to tripod constant velocity joints for motor vehicle transmission systems.

Abstract: An intermediate shaft includes, as a single piece (12), a female element (13B) of sliding articulated joint (7B), an internal raceway (15), and a tubular part (16) which stretches, from this raceway, in the opposite direction to the female element.

Abstract: A transmission joint portion has an envelope with an interior peripheral surface. A plurality of bearing paths are defined by bearing tracks distributed about the axis of the envelope inside the envelope. Each bearing track has a bearing path surface on one side thereof and an opposite surface facing the interior peripheral surface of the envelope. An interior space is defined between the interior peripheral surface of the envelope and the opposite surfaces of the bearing tracks. A filler material made of one of a thermosetting and a thermoplastic matrix is filled into the interior space between the interior peripheral surface and each opposite surface. The interior peripheral surface is provided with portions extending opposite the opposite surfaces of the bearing tracks, with each portion having a contour that is substantially the same as the contour of the respective opposite surface.

Abstract: An axially fixed transmission joint (10) has a first element (16) which is connected to a first shaft (12) and carries articulation elements (22) of the transmission joint (10) which interact with complementary bearing tracks (24) formed in a second element (18) of the transmission joint (10) which is connected to a second shaft (14). The transmission joint (10) further has an axial stop member (32) connected to the first element (16) which interacts with a complementary spherical stop surface (52) formed in a sealing boot (54) of the transmission joint (10) for immobilizing the first element (16) axially in relation to the second element (18) in at least one direction of relative axial displacement. The sealing boot (54) has a first end (58) which is fastened to the second element (18) and a second end (62) which is fastened to the first shaft (12).

Abstract: A transmission joint body (10) intended to be connected to a shaft (13) has several bearing paths for articulation elements distributed around an axis (X--X) of the body. Each bearing path comprises two fixed or movable tracks (14) arranged so as to cooperate with articulation elements of the transmission joint. Each track is constituted by a first surface (16) of a metal part (14). A second surface (18) is associated with a complementary surface (20) of the joint body (10) formed in a portion (12) of the joint body constructed of a composite material constituted by a reinforced thermosetting or thermoplastic matrix. At central longitudinal axis (ACR) of each bearing path, contained in a plane containing the axis (X--X) of the shaft (13), forms an angle (.alpha.) with the geometrical axis of the shaft.

Abstract: A transmission joint body has an envelope inside which are provided bearing paths for articulation elements of a transmission joint (10). A connection system for the joint body includes a radial flange connected to the envelope. The flange is made at least partially from a material comprising a thermosetting or thermoplastic matrix reinforced with short fibers or with particles. According to a preferred embodiment, the inner space defined radially by the inner peripheral surface of the envelope of the joint body is partially filled with a material comprising a thermosetting or thermoplastic matrix reinforced with short fibers or with particles, and which is extended outside the envelope through one axial end of the latter in order to form the flange.

Abstract: A transmission joint of the sliding type in which a first element (12) is connected to a first shaft (14) and comprises trunnion journals (20) distributed angularly in a regular manner about the geometrical axis (A1) of the first shaft (14), each trunnion journal (20) receives a rolling element (22) which is mounted so as to rotate and slide on the trunnion journal, the geometrical axis (AT) of the trunnion journal forms a first acute angle with respect to a reference line perpendicular to the axis (A1) of the first shaft (14) and contained within a plane containing the geometrical axes (A1, AT) of the first shaft (14) and of the trunnion journal (20), and in which a second element (16) is connected to a second shaft (18) and comprises rolling paths distributed angularly in a regular manner about the geometrical axis (A2) of the second shaft, each rolling path comprises two parallel tracks (34) between which is accommodated a rolling element (22), the center longitudinal axis (ACR) of the rolling path contain