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: A system for assembling at least two pressurized fluid control members is made up of an interface to which the control members, which are essentially pneumatic, are fixed. The interface includes fluid pipes connecting their feed and outlet orifices and at least two faces with an angle &agr; between them from 5° to 175° and each of which receives at least one of the control members.

Abstract: A valve comprises a body including a chamber and two superposed closures moving in the chamber and the bottom part of the chamber includes a first seat for one closure and a second seat for the other closure. The closures are each carried by a swing mobile between a position in which the closure bears in sealed fashion on the corresponding seat and a position in which the closure is spaced from the seat. The space between the two closures contains an elastic material membrane closing a chamber into which a compressed air feed discharges. The membrane can therefore be inflated and pressed in sealed fashion onto the top closure to close and seal the inlet of a passage which discharges into a space between the two closures.