Abstract: The manufacturing method notably includes a step (110) for sintering steel powder (10), the chemical composition of which includes, in mass percent, 2.3% of carbon, 4.2% of chromium, 7% of molybdenum, 6.5% of tungsten, 10.5% of cobalt and 6.5% of vanadium, so as to obtain a sintered steel (12) and shaping of the sintered steel (12), for forming a bearing ring (18).

Abstract: The manufacturing method notably includes a step (110) for sintering steel powder (10), the chemical composition of which includes, in mass percent, 2.3% of carbon, 4.2% of chromium, 7% of molybdenum, 6.5% of tungsten, 10.5% of cobalt and 6.5% of vanadium, so as to obtain a sintered steel (12) and shaping of the sintered steel (12), for forming a bearing ring (18).

Abstract: The bearing (10) according to the invention includes an outer ring (12), with a shape generally of revolution around an axis (X), an inner ring (14), with a shape generally of revolution around the axis (X), positioned coaxially to the outer ring (12), and rolling elements (16), for example balls, positioned radially between the inner ring (14) and the outer ring (12). The rolling elements (16) are at least partially in direct contact with at least one of the inner (14) and outer (12) rings. The ring (12, 14) at least partially in direct contact with the rolling elements (16) is made with a base of a powder of a sintered material.

Abstract: A device for separating the liquid phase from the solid phase of rigid multiphase materials such as bituminous schists, domestic waste and vegetables, in which there is used at least one compression operation at a pressure of at least 500 bars, the compression being effected in at least a first elongated chamber (2) having orifices (4) adapted to let the fluid materials pass, a pressure being applied at an inlet end (1a) by a piston (3), the volume of the chamber exceeding the volume swept out by the piston so that the compressed material remains under pressure in the chamber during several strokes of the piston, the other end (1b) of the chamber being equipped with an extraction-metering system (5) so as to allow the permanent pressure of the material in the chamber.

Abstract: The present invention relates to a process and apparatus for treating matter comprising a solid phase and a liquid phase, according to which said matter is crushed and the crushed matter is sifted under pressure, wherein the sifting under pressure and the crushing of the matter are effected simultaneously by disposing said matter in a closed so-called pressure chamber, causing at least one punch to advance in said chamber and expelling sifted matter through calibrated orifices in the pressure chamber. The invention is applied more particularly to the treatment of household garbage.