Abstract: A pulley device provides a pulley, and a bearing. The pulley has at least one C-shaped pulley part having an inner portion mounted on the bearing, an outer portion having an outer cylindrical surface dedicated to interact with a belt or a chain, and an intermediate portion extending substantially radially between axial ends of inner and outer portions on one axial side of pulley device. A grip surface portion is provided to one surface among the outer cylindrical surface of the outer ring and the inner cylindrical surface of the inner cylindrical portion of the pulley part, the grip surface portion including a plurality of indentations and recesses.

Abstract: A Pulley device for a tensioning or winding roller for a transmission element including a pulley, and a rolling bearing provided with a rotating outer ring, the pulley being mounted on an outer surface of the outer ring, a fixed inner ring, the rings being coaxial and forming a radial space between them, and at least one row of rolling elements arranged in the radial space. The pulley device further includes at least one annular protection flange with a radial body. The flange is fixed to the rotating outer ring by crimping an axially protruding portion of the pulley towards an outer edge of the flange.

Abstract: The pulley device provides a pulley and a bearing. The pulley has two C-shaped pulley parts having each an inner portion mounted on the bearing, an outer portion having an outer cylindrical surface dedicated to interact with a belt or a chain, and an intermediate portion extending substantially radially between axial ends of inner and outer portions on one axial side of pulley device. Free ends of outer portions each include a hook-shaped portion. A first one of the hook-shaped portions axially overlapping a second one of the hook-shaped portions. The hook-shaped portions configured to cooperate together in order to attach one outer portion to the other.

Abstract: A pulley device provides a pulley and a bearing. The pulley has at least one C-shaped pulley part having an inner portion mounted on the bearing, an outer portion having an outer cylindrical surface dedicated to interact with a belt or a chain, and an intermediate portion extending substantially radially between axial ends of inner and outer portions on one axial side of pulley device. The outer cylindrical surface of outer ring is provided with at least one material deformation forming an axial stop for the pulley.

Abstract: The pulley device provides a pulley and a bearing. The pulley has two C-shaped pulley parts having each an inner portion mounted on the bearing, an outer portion having an outer cylindrical surface dedicated to interact with a belt or a chain, and an intermediate portion extending substantially radially between axial ends of inner and outer portions on one axial side of pulley device. Free ends of outer portions each include a hook-shaped portion. A first one of the hook-shaped portions axially overlapping a second one of the hook-shaped portions. The hook-shaped portions configured to cooperate together in order to attach one outer portion to the other.

Abstract: A pulley device provides a pulley and a bearing. The pulley has at least one C-shaped pulley part having an inner portion mounted on the bearing, an outer portion having an outer cylindrical surface dedicated to interact with a belt or a chain, and an intermediate portion extending substantially radially between axial ends of inner and outer portions on one axial side of pulley device. The outer cylindrical surface of outer ring is provided with at least one material deformation forming an axial stop for the pulley.

Abstract: A pulley device provides a pulley, and a bearing. The pulley has at least one C-shaped pulley part having an inner portion mounted on the bearing, an outer portion having an outer cylindrical surface dedicated to interact with a belt or a chain, and an intermediate portion extending substantially radially between axial ends of inner and outer portions on one axial side of pulley device. A grip surface portion is provided to one surface among the outer cylindrical surface of the outer ring and the inner cylindrical surface of the inner cylindrical portion of the pulley part, the grip surface portion including a plurality of indentations and recesses.

Abstract: A Pulley device for a tensioning or winding roller for a transmission element including a pulley, and a rolling bearing provided with a rotating outer ring, the pulley being mounted on an outer surface of the outer ring, a fixed inner ring, the rings being coaxial and forming a radial space between them, and at least one row of rolling elements arranged in the radial space. The pulley device further includes at least one annular protection flange with a radial body. The flange is fixed to the rotating outer ring by crimping an axially protruding portion of the pulley towards an outer edge of the flange.

Abstract: The cam follower roller device provides a tappet body, a pin and a roller mounted on the pin. The tappet body provides holes for mounting pin ends of the pin on the tappet body. The device further provides one deformable ring disposed between each pin end of the pin and an inner wall of the associated hole of the tappet body.

Abstract: The cam follower roller device comprises a body, a shaft mounted on the body, and a roller mounted on the said shaft in a rotationally movable manner and comprising two end faces. Each of the said faces is arranged at least in part axially facing an inner wall of the body. At least one of the end faces of the roller and/or at least one of the said inner walls of the body comprise an antifriction and wear-resistant coating.

Abstract: The cam follower roller device provides a tappet body, a pin and a roller mounted on the pin. The tappet body provides holes for mounting pin ends of the pin on the tappet body. The device further provides one deformable ring disposed between each pin end of the pin and an inner wall of the associated hole of the tappet body.

Abstract: A rolling bearing, adapted for mounting on a balancing shaft, the rolling bearing comprising: (a) an outer ring having a cylindrical outer surface and a cylindrical inner surface centered on a central axis, and two annular lateral surfaces extending radially to the central axis and defining a ring width parallel to the central axis; (b) a cage having pockets distributed around the central axis and two annular lateral surfaces extending radially to the central axis and defining a cage width parallel to the central axis; and (c) rolling members mounted in the pockets of the cage and disposed in rolling contact with the inner surface of the outer ring. The cage width is superior or equal to the ring width. The rolling bearing can be installed within a mechanical system.

Abstract: A balancing assembly for an internal combustion engine comprising a balancing shaft and at least two bearings for holding the balancing shaft in position with respect to a supporting structure of the engine, each bearing comprising an inner ring mounted around the balancing shaft, an outer ring designed to interact with the supporting structure and balls located in a bearing chamber defined between the inner and outer rings. Each bearing is an angular contact rolling bearing with a single row of balls and at least one of the inner ring and the outer ring is made of a drawn piece of metal.

Abstract: The cam follower roller device comprises a body, a shaft mounted on the body, and a roller mounted on the said shaft in a rotationally movable manner and comprising two end faces. Each of the said faces is arranged at least in part axially facing an inner wall of the body. At least one of the end faces of the roller and/or at least one of the said inner walls of the body comprise an antifriction and wear-resistant coating.

Abstract: Cam follower roller device, notably for an internal combustion engine fuel injection pump, comprising a tappet (12) and a roller (14) mounted to rotate on the tappet and intended to press against a cam. The tappet (12) comprises a roller support body (16), a shaft (26) for mounting the roller on the said body, and a guide sleeve (18) attached to the support body and at least partially surrounding the said body. The ends of the shaft are fixed in through-holes in the support body.

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: Cam follower roller device, notably for an internal combustion engine fuel injection pump, comprising a tappet (12) and a roller (14) mounted to rotate on the tappet and intended to press against a cam. The tappet (12) comprises a roller support body (16), a shaft (26) for mounting the roller on the said body, and a guide sleeve (18) attached to the support body and at least partially surrounding the said body. The ends of the shaft are fixed in through-holes in the support body.

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 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 centring 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.