Abstract: The present invention relates to a sealing device including a sealing circular piece, an inner ring and an outer ring, with one being able to rotate relative to an axis. The circular piece is arranged between the two rings and comprises two circular lips arranged in a groove inclined with respect to the axis of rotation. The groove is provided on the outer face of the inner ring. An attachment profile is fixed in an orifice formed in the outer ring. The inclination of the groove makes it possible to increase the potential contact surface area perpendicular to the axis of rotation of the crown ring, since, for a given distance between an outer edge and an inner edge of a ring, the groove can be longer, improving the resistance of the top lip to expulsion. The two lips are prestressed in the groove allowing for a better hold.

Abstract: A sealing device comprising a sealing circular piece, an inner ring and an outer ring, one of the two rings being able to rotate relative to an axis, the circular piece being arranged between the two rings and comprising two circular lips arranged in a groove at right angles to the axis of rotation, a top lip and a bottom lip substantially at right angles to the top lip, the bottom lip has a radius of curvature directed towards the interior, the groove being provided on the outer face of the inner ring and a third circular lip pressing on the outer face of the inner ring, and a part is fixed in an orifice formed in the outer ring.

Abstract: A wind turbine rotor hub bearing where the series of mobile members include more than two annular series of such members whereof at least two have different median diameters which are arranged in more than two rows scaled along the bearing rotational axis, with two end rows each comprising a series of roller bearings having individually a rotational axis transversal to the axis and at least an intermediary row of mobile members comprising balls.

Abstract: The present invention relates to a sealing device (1) comprising a sealing circular piece (3), an inner ring (2) and an outer ring (4), one of the two rings being able to rotate relative to an axis, the circular piece (3) being arranged between the two rings (2, 4) and comprising two circular lips (300, 301) arranged in a groove (20) at right angles to the axis of rotation, a top lip (300) and a bottom lip (301) substantially at right angles to the top lip (300), said bottom lip (301) has a radius of curvature directed towards the interior, the groove (20) being provided on the outer face (21) of the inner ring (2) and a third circular lip (302) pressing on the outer face (21) of the inner ring (2), and a part (32) is fixed in an orifice (41) formed in the outer ring (4).

Abstract: The present invention relates to a sealing device including a sealing circular piece, an inner ring and an outer ring, with one being able to rotate relative to an axis. The circular piece is arranged between the two rings and comprises two circular lips arranged in a groove inclined with respect to the axis of rotation. The groove is provided on the outer face of the inner ring. An attachment profile is fixed in an orifice formed in the outer ring. The inclination of the groove makes it possible to increase the potential contact surface area perpendicular to the axis of rotation of the crown ring, since, for a given distance between an outer edge and an inner edge of a ring, the groove can be longer, improving the resistance of the top lip to expulsion. The two lips are prestressed in the groove allowing for a better hold.

Abstract: A wind turbine rotor hub bearing where the series of mobile members include more than two annular series of such members whereof at least two have different median diameters which are arranged in more than two rows scaled along the bearing rotational axis, with two end rows each comprising a series of roller bearings having individually a rotational axis transversal to the axis and at least an intermediary row of mobile members comprising balls.

Abstract: For a bearing mounted between two concentric races rotating relative to each other, and forming an annular gap that accommodates the bearing and is closed by seals, at least one grease tube is provided between the periphery of one of the two races and the annular gap, and is connected to a corresponding grease reservoir. At least one main grease tube opens into the annular gap in an angular sector where an overpressure occurs, a corresponding main grease reservoir is adapted to collect grease flowing from the annular gap through the main grease tube due to the overpressure that may occur within the annular gap in the angular sector.

Abstract: In a system for coupling a toothed starter ring to a support connected to the output shaft of an internal combustion engine, a complementary substantially cylindrical peripheral surface of the ring is fixed over at least a part of its extent to a substantially cylindrical peripheral surface of the support in such a manner that the ring can deform slightly in the radial direction toward the shaft to reduce the maximum stresses exerted on the ring during a starting operation.

Abstract: In a system for coupling a toothed starter ring to a support connected to the output shaft of an internal combustion engine, a complementary substantially cylindrical peripheral surface of the ring is fixed over at least a part of its extent to a substantially cylindrical peripheral surface of the support in such a manner that the ring can deform slightly in the radial direction toward the shaft to reduce the maximum stresses exerted on the ring during a starting operation.

Abstract: For a bearing mounted between two concentric races rotating relative to each other, and forming an annular gap that accommodates the bearing and is closed by seals, at least one grease tube is provided between the periphery of one of the two races and said annular gap, and is connected to a corresponding grease reservoir. At least one main grease tube opens into the annular gap in an angular sector where an overpressure occurs, a corresponding main grease reservoir is adapted to collect grease flowing from the annular gap through said main grease tube due to the overpressure that may occur within the annular gap in said angular sector.