Abstract: The disengageable module for a system for transmitting a starting torque to an internal combustion engine, of the type comprising a ring gear connected to the crankshaft of the combustion engine, comprises an inner ring (26) intended to be coupled to the crankshaft, an outer ring (28) intended to be coupled to the ring gear, and at least one free wheel (30) provided with a plurality of wedging elements (34) mounted between raceways of the said rings. It further comprises means (50) designed to provide relative centering of the inner ring (26) and of the outer ring (28) and for transmitting radial load, the said means (50) being mounted at least partially between the inner ring and the outer ring leaving radial clearances between themselves and the said inner ring.

Abstract: Disengageable pulley device comprising a pulley mounted on a shaft by means of a rolling bearing and of a freewheel, the pulley comprising a rim mounted on the periphery of a one-piece outer race of substantially tubular shape comprising, on an inner surface, at least one raceway for rolling elements and at least one contact seat of cylindrical revolution for lock-up elements of the freewheel, a one-piece inner race forming a torque transmission shaft and including, on an outer surface coming opposite the outer race, at least one raceway for the rolling elements and at least one contact seat of cylindrical revolution for the lock-up elements of the freewheel.

Abstract: The disengageable pulley device includes a pulley mounted on an internal transmission element, and a free wheel provided with a plurality of wedges and with a cage for the wedges, said free wheel being designed to provide one-way engagement between the pulley and the internal transmission element. The device includes an elastic connecting member provided with a first fixing part for fixing it to the internal transmission element, with a second fixing part for fixing it to the cage, and with a working part between said fixing parts, said working part being radially moveable relative to the internal transmission element and being adapted to exert a circumferential return force on the cage.

Abstract: Belt roller device, comprising a pulley, a rolling bearing, a protective end-plate, a screw immobilized axially relative to the rolling bearing, and a retaining element mounted on a stem of the screw and forming an axial stop for the protective end-plate, the said protective end-plate being designed to come to bear against a radial face of the inner race of the rolling bearing.

Abstract: The disengageable pulley device includes a pulley mounted on an internal transmission element, and a free wheel provided with a plurality of wedges and with a cage for the wedges, said free wheel being designed to provide one-way engagement between the pulley and the internal transmission element. The device includes an elastic connecting member provided with a first fixing part for fixing it to the internal transmission element, with a second fixing part for fixing it to the cage, and with a working part between said fixing parts, said working part being radially moveable relative to the internal transmission element and being adapted to exert a circumferential return force on the cage.

Abstract: Disengageable pulley device comprising a pulley mounted on a shaft by means of a rolling bearing and of a freewheel, the pulley comprising a rim mounted on the periphery of a one-piece outer race of substantially tubular shape comprising, on an inner surface, at least one raceway for rolling elements and at least one contact seat of cylindrical revolution for lock-up elements of the freewheel, a one-piece inner race forming a torque transmission shaft and including, on an outer surface coming opposite the outer race, at least one raceway for the rolling elements and at least one contact seat of cylindrical revolution for the lock-up elements of the freewheel.

Abstract: Belt roller device, comprising a pulley, a rolling bearing, a protective end-plate, a screw immobilized axially relative to the rolling bearing, and a retaining element mounted on a stem of the screw and forming an axial stop for the protective end-plate, the said protective end-plate being designed to come to bear against a radial face of the inner race of the rolling bearing.