Abstract: Cage for a rolling bearing comprising a plurality of pockets (13) for a plurality of rolling elements (4), at least one pocket (13) being of ellipsoidal shape and provided with means (14) of axial retention of the cage (10) on the corresponding rolling element (4), the ellipse defining the said ellipsoidal pocket (13) being determined by a major axis (A) situated in the circumferential plane of the cage (10) and a minor axis (B) in the axial direction of the cage (10). The minor axis (B) is comprised between the major axis (A) and the diameter (D) of the rolling element (4) arranged in the said ellipsoidal pocket (13).

Abstract: This rolling bearing comprises an outer ring (4), an inner ring (6), rolling bodies (10) arranged between the outer ring and the inner ring, one a sealing gasket (20) mounted on a first ring (4) and extending towards the second ring (6), to the extent that a sealing edge (26) of said sealing gasket is in sliding contact with the second ring. An annular shield (50) is mounted on the second ring (62) and extends radially towards the first ring (4). This shield (50) is provided with at least one annular lip (58) in sliding contact with a lateral face (28) of the sealing gasket (20).

Abstract: The device for torque transmission between a drive pulley (1) and a shaft (2) comprises a coupling flange (4) rotationally driven by the pulley and a hub fitted at the shaft end and rotationally joined to the shaft, with torque limitation means fitted between the coupling flange (4) and the hub (3), characterized in that the torque limitation means comprise a friction ring (28) comprising a plurality of projecting elastic portions in friction contact with a surface of the coupling flange (4) and/or of the hub (3).

Abstract: A cage for a rolling bearing which cage is intended to ensure the circumferential spacing of a row of rolling elements and comprises first pockets 28 for first rolling elements of the row, which pockets are provided with axial retention means 38, 46 for the axial retention of the cage onto the said rolling elements, and second pockets 26 for the second rolling elements of the row, which pockets have no axial retention means for retaining the cage on the said rolling elements. The distribution of the first pockets 28 about the periphery of the cage is uneven.

Abstract: The rolling bearing cage is intended to provide the circumferential spacing of a row of rolling elements and comprises first pockets 32 for first rolling elements of the row, these pockets being provided with axial retention means 34 for retaining the cage on the rolling elements, second pockets 24 for second rolling elements of the row and not provided with axial retention means for retaining the cage on the rolling elements, and separation portions 22, 30 which between them delimit first and second pockets. Each separation portion 30 delimiting one of the first pockets comprises a notch 40 which is open axially and opens radially onto each side of the separation portion.

Abstract: Rolling bearing cage (5) for an electric steering system of a motor vehicle, designed to ensure the circumferential spacing of the balls (4), comprising a plurality of first sockets (8) provided with means (8a) for axially retaining the cage (5) on a ball (4) and a plurality of second sockets (9) without means for axially retaining the cage (5) on a ball (4). Each of the first sockets (8), with a ball (4) housed in the first corresponding socket (8), has a first axial clearance, a first radial clearance and a first circumferential clearance (J1c) and each of the second sockets (9), with a ball (4) housed in the second corresponding socket (9), has a second axial clearance, a second radial clearance and a second circumferential clearance (J2c).

Abstract: This rolling bearing comprises an outer ring (4), an inner ring (6), rolling bodies (10) arranged between the outer ring and the inner ring, one a sealing gasket (20) mounted on a first ring (4) and extending towards the second ring (6), to the extent that a sealing edge (26) of said sealing gasket is in sliding contact with the second ring. An annular shield (50) is mounted on the second ring (62) and extends radially towards the first ring (4). This shield (50) is provided with at least one annular lip (58) in sliding contact with a lateral face (28) of the sealing gasket (20).

Abstract: An air-conditioning compressor comprises a shaft rotationally assembled through a casing. A pulley is attached to the compressor by a roller bearing. A torque-transmitting member engages the pulley and the shaft together. Openings are formed between arms of an external torque transmitting part and a bore of an inner ring has a radius such to enable insertion of a crimping tool into the torque-transmitting subassembly to reshape local plastic features for assembly of the torque-transmitting subassembly. The local plastic deformations of the casing interfere with a transverse face of the inner ring, wherein the local plastic deformations are positioned in axial alignment with the empty spaces in at least one relative angular position between the torque-transmitting member and the inner ring.

Abstract: A method for assembling a rolling bearing by deformation of the outer ring (OR) and/or the inner ring (IR) comprising, before said step of deformation, determining the theoretical position (1?, 2?) that the two extreme rolling elements should occupy so as to allow inserting at least one supplemental rolling element (11) in said space (13), said theoretical position defining an acute application angle (?2) determining the value of forces (F1) to be applied from outside to said outer ring (OR) at three application points, one central point at said nearest or contact location of both inner an outer rings in said symmetry plane and two lateral points at an angle (2?2) equal to the double of said acute application angle with respect to said symmetry plane, verifying that the deformation of the outer ring (OR) resulting from the application of said forces remains elastic and in that case, applying said forces and inserting at least one supplemental rolling element in said space.

Abstract: The device for torque transmission between a drive pulley (1) and a shaft (2) comprises a coupling flange (4) rotationally driven by the pulley and a hub fitted at the shaft end and rotationally joined to the shaft, with torque limitation means fitted between the coupling flange (4) and the hub (3), characterized in that the torque limitation means comprise a friction ring (28) comprising a plurality of projecting elastic portions in friction contact with a surface of the coupling flange (4) and/or of the hub (3).

Abstract: A seal is for a rolling bearing including inner and outer rings relatively rotatable about an axis. The seal includes a generally annular body having a radial portion with inner and outer ends. A static sealing portion at least partially surrounds one of the inner and outer ends of the body radial portion and is configured to form a static seal with a proximal one of the bearing inner and outer rings. A dynamic sealing rim extends generally axially from the other one of the inner and outer ends of the body radial portion, the rim being configured to form a dynamic seal with the other one of the bearing inner and outer rings and being spaced radially from the other one of the inner and outer rings so as to define an annular space for receiving a lubricant.

Abstract: The air-conditioning compressor is provided with a casing 3, with a shaft 4 able to rotate about an axis 5, and with a torque-transmitting device 1 comprising a pulley 7, a rolling bearing 8 positioned inside the pulley 7 and comprising an inner ring 14, an outer ring 15 and at least one row of rolling elements 16, and a torque-transmitting member 9 equipped with an external part angularly connected to the pulley 7, with an internal part 20 fixed to the shaft 4 and with at least two arms 21 connecting the external part and the internal part. Empty spaces 23 are formed between the arms 21, the bore 14b of the inner ring 14 having a radius greater than the distance between the axis 5 of rotation and an internal end 23a of the said empty spaces 23 so as to allow the insertion of a crimping tool.

Abstract: Tensioning roller device including a non-rotating part about which there is rotationally mounted a pulley-forming rotating assembly designed to collaborate with a belt or a chain and a rolling bearing positioned between the non-rotating part and the pulley and including a rotating ring, a non-rotating ring and rolling elements, the pulley including a rigid rim including a first part fixed to the rotating ring of the bearing and a second part that can move with respect to the first part under the action of an elastic element, and an expandable sleeve of annular overall shape designed to be in contact with the belt or the chain, the diameter of the expandable sleeve varying according to how hard it is pressed by the second part.

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: Tensioning roller device including a non-rotating part about which there is rotationally mounted a pulley-forming rotating assembly designed to collaborate with a belt or a chain and a rolling bearing positioned between the non-rotating part and the pulley and including a rotating ring, a non-rotating ring and rolling elements, the pulley including a rigid rim including a first part fixed to the rotating ring of the bearing and a second part that can move with respect to the first part under the action of an elastic element, and an expandable sleeve of annular overall shape designed to be in contact with the belt or the chain, the diameter of the expandable sleeve varying according to how hard it is pressed by the second part.

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.