Abstract: A transmission pulley, for a power transmission system including a belt having longitudinal grooves, having at least one end cap, a stack (E) of identical crowns, as well as means of connecting the crowns and the cap, parallel to a rotational axis (X10) of the pulley and rotating about this axis. The cap defines a hollow housing wherein half of the adjacent crown is engaged on one side of a median plane of the crown.

Abstract: A free wheel with rolling bodies provides an inner ring, an outer ring, a plurality of rolling bodies, positioned in an annular space arranged radially between the inner and outer rings, and a cage for keeping the rolling bodies in position. The cage defines individual receiving housings for the rolling bodies. The free wheel has elastic retaining members for keeping the rolling bodies in their housings, each member having least two tongues that come into contact with two rolling bodies positioned in two adjacent housings of the cage. The tongues positioned on either side of a housing delimit an opening there-between through which a rolling body rolls on a track of a first ring. The width of the opening, measured in an orthoradial direction with respect to a relative axis of rotation of the inner and outer rings, has a value smaller than the diameter of the rolling bodies.

Abstract: The cage blank for a free wheel with at least one of rolling bodies and cams wherein the cage blank has two parts and comprises a main part defining cells for receiving the at least one of rolling bodies and cams. The cage blank includes a cover for closing the cells. Before the cover is assembled on the main part, each cell has, at an axial end, along a longitudinal axis of the main part, an opening for placing a rolling body or a cam.

Abstract: A cage blank for a free wheel with rolling bodies is formed by an elongated strip defining housings for receiving rolling bodies juxtaposed in a rectilinear longitudinal direction of the blank. It is provided, at both of its ends, with means for attaching the two ends together, in a configuration where the cage forms a closed loop. A cage is formed by bending the blank on itself, perpendicular to its longitudinal direction, and engaging its attaching means.

Abstract: The suspension bump stop device comprises a rolling bearing (44) that forms an axial bump stop, equipped with an upper ring (46), with a lower ring (48) and with a plurality of rolling elements positioned between the rings, the upper and lower rings being supported respectively by an upper cup (40) and a lower cup (42), the lower cup forming a bearing means for a suspension spring (18), at least one sealing lip being provided on one of the cups so that it bears against a bearing surface portion of the other cup. The bearing surface portion is substantially cylindrical, the sealing lip being directed downwards away from the rolling bearing and bearing with radial interference against the said surface portion, the said substantially cylindrical surface portion being connected towards the top to a shoulder against which the lip can bear if the two cups become radially eccentric relative to one another.

Abstract: A mechanical system, comprising a support element, a pin extending along a first axis and comprising two opposite ends, each adapted to be fitted in the support element for radial retention of the pin relative to the first axis, and a roller element movable in rotation relative to the pin around the first axis. The mechanical system includes two ribs resting on either side of the ends for axial retention of the pin along the first axis. The mechanical system can be integrated into either an injection pump or a valve actuator.

Abstract: A mechanical system, comprising a tappet including a body, a support element defining two bores centered on a first axis, a pin comprising two opposite ends each adapted to be fitted in one of the two bores, and a roller element positioned between the two bores along the first axis and movable in rotation relative to the pin around the first axis. The support element is distinct from the body and fixed thereto, and the support element also comprises at least one antirotation device integrally formed thereto. The mechanical system can be integrated into an injection pump and/or a valve actuator.

Abstract: A mechanical system comprising: a tappet, including a body; an insert mounted in the body; a pin extending along a first axis; and a roller element movable in rotation relative to the pin around the first axis. The insert supports the pin, while the body supports the insert, along at least one first direction parallel to a second axis which is perpendicular to the first axis. The mechanical system can be integrated into an injection pump and/or a valve actuator.

Abstract: Suspension thrust bearing device comprising a rolling bearing (2) and a bottom cover (4) having a bearing surface capable of accommodating a suspension spring (5), the bottom cover (4) comprising a reinforcing framework (8), which framework has a bearing collar (17) placed axially between the rolling bearing (2) and the bearing surface of the spring (5), the framework (8) also comprising an inner radial extension (19). The framework comprises an axial portion (20) extending in a direction away from the rolling bearing (2), protruding axially relative to the inner radial extension (19) and being situated radially outside the radial extension so as to be able to accommodate a shock-absorbing pad.

Abstract: This bearing comprises a fixed outer ring and a rotatable inner ring, and at least one lubrication ring having at least one lubrication duct extending between an outer surface and an inner surface of the lubrication ring. The at least one lubrication duct is placed so that the scalar product of a vector collinear to the longitudinal axis of the lubrication duct, and a vector (VL1) collinear to the tangent line (L1) to an outer cylindrical surface of the inner ring, at the point where the longitudinal axis of the lubrication duct (270) intersects the outer cylindrical surface of the inner ring, and oriented in the same direction as the rotation direction (F) of the inner ring, is strictly superior to zero, said vectors being projected in a plane (P2) perpendicular to the rotation axis of the bearing.

Abstract: The axial thrust bearing device, in particular for the suspension strut of a motor vehicle, comprises a bottom support cover, a top bearing cover, a rolling bearing axially disposed between said covers, and at least a sealing ring axially bearing against the bottom support cover and adapted to reduce any ingress of foreign matter between said covers. The sealing ring comprises at least one friction lip in contact with the top bearing cover and tending to keep said sealing ring in axial contact with the bottom support cover.

Abstract: The suspension thrust bearing device for a motor vehicle comprises a rolling bearing (22) forming a thrust and provided with an upper ring, a lower ring, and at least one row of rolling elements placed between the rings, a bearing cap (18) in contact with the upper ring, and a supporting cap (20) in contact with the lower ring and forming a bearing means for a suspension spring (12). At least one of the said caps comprises a body formed of at least a first synthetic material and an insert (34) at least partly covered by the said body. The said insert is formed of at least a second synthetic material different from the first synthetic material.

Abstract: The suspension thrust bearing device for a motor vehicle comprises a rolling bearing forming a thrust bearing and provided with an upper ring, with a lower ring and with at least one row of rolling elements arranged between the rings, a bearing cap in contact with the upper ring, and a support cap in contact with the lower ring and forming a bearing means for a suspension spring. At least one of the caps comprises a body made of synthetic material and an insert covered at least in part by the body. The insert comprises stiffening ribs in order to reinforce the mechanical strength of the cap with respect to the axial loads resulting from the forces exerted by the suspension spring.

Abstract: The invention concerns a pulley device (1) including a pulley (5), a torque transmission means (6) intended to be mounted between the pulley (5) and a transmission shaft (3) of a turning machine, and torque limitation means (16) intended to be mounted between the pulley (5) and the transmission shaft (3). The pulley device also includes at least one bearing (7) intended to be mounted on a non-rotating housing (2) of the turning machine and provided with an inner race (8) with a bore (8b), through which the inner race (8) is intended to be mounted on the housing (2), an outer race (9) and at least one row of rolling elements (10). According to the invention, the pulley device (1) provides axial retention means (17) arranged exclusively radially between the bore (8b) of the inner race (8) and the housing (2).

Abstract: Pulley device for a rotating machine comprising a pulley, a torque transmission means intended to be mounted on a rotating shaft of the rotating machine and a damping element arranged between the said pulley and the torque transmission means. The damping element is retained axially on the pulley by mechanical attachment means.

Abstract: Pulley device for a rotating machine comprising a pulley containing a plurality of axial ribs, a torque transmission means containing an axial sleeve intended to be installed on a rotating shaft of the rotating machine and a radial plate extending radially from the axial sleeve and comprising a plurality of regularly distributed radial teeth extending towards the outside, two adjacent teeth being separated in the circumferential direction by an indentation, and a damping element arranged between the said pulley and the torque transmission means. The damping element includes at least one damping portion arranged in each of the indentations of the radial plate, being situated circumferentially between a radial tooth of the torque transmission means and an axial rib of the pulley.

Abstract: The invention relates to a rolling bearing 1 comprising a lower ring 3 mounted inside a lower annular cup 6, an upper ring 2 mounted inside an upper annular cup 7, and at least one row of rolling elements 4 positioned between raceways defined by lower and upper rings. One of the annular cups has at least one annular skirt 6d partly inserted within at least one annular groove 7m provided in the other annular cup, thus forming a sinuous chamber 8, and the sinuous chamber is at least partly filled with at least one waterproof grease material 9.

Abstract: The present invention relates to a method for manufacturing a suspension bearing device, comprising at least one rolling bearing, a bottom cup and a top cup made of plastic, each in contact with the rolling bearing, and at least one seal suitable for protecting the rolling bearing from ingress of water or of polluting particles. The method is characterized in that it comprises at least one step of positioning a seal made of thermosetting elastomer on a supporting element made of plastic between the bottom cup and the top cup and, for the or each seal made of thermosetting elastomer, a step of curing this seal on its supporting element. The invention also relates to a suspension bearing device and a strut of a motor vehicle.

Abstract: This bearing comprises a fixed outer ring and a rotatable inner ring, and at least one lubrication ring having at least one lubrication duct extending between an outer surface and an inner surface of the lubrication ring. The at least one lubrication duct is placed so that the scalar product of a vector collinear to the longitudinal axis of the lubrication duct, and a vector (VL1) collinear to the tangent line (L1) to an outer cylindrical surface of the inner ring, at the point where the longitudinal axis of the lubrication duct (270) intersects the outer cylindrical surface of the inner ring, and oriented in the same direction as the rotation direction (F) of the inner ring, is strictly superior to zero, said vectors being projected in a plane (P2) perpendicular to the rotation axis of the bearing.

Abstract: Pulley device for a rotary machine, and in particular a compressor, comprising a pulley, a rolling bearing, a torque transmission plate having an axial sleeve designed to be mounted on a rotary spindle of the rotary machine and a radial plate extending radially from the axial sleeve and having the general shape of a disc, said pulley being mounted on an outer ring of the rolling bearing and on the torque transmission plate, the torque transmission plate being able to transmit a rotational movement from the pulley to the rotary spindle. Said pulley device comprises a damping element located between the pulley and the torque transmission plate.