Planetary gearset

An epicycloidal gear train comprising a central pinion, an outer crown and satellite pinions engaging the central pinion and the outer crown and each mounted freely rotatable on a satellite carrier, the gear train comprising a first lubrication oil circuit for contact areas of the gear teeth of the satellite pinions with the central pinion and a second lubrication oil circuit for axes of the satellite pinions, an annular cup being integral with the satellite carrier and open radially inward, characterized in that the cup is divided into a circumferential succession of first basins of the first oil circuit and second basins of the second oil circuit, the first basins (60) being fluidly separated from the second basins and in that the cup comprises a first and a second annular wall axially facing, said first annular wall being further from a median radial plane of the gear train than said second annular wall, said first annular wall having openings opening into the second basins.