Patent ID: 7040811

Claim:
A rolling bearing for supporting a shaft in rotation inside an annular structural piece, said bearing defining a separation between an oil enclosure and an air enclosure, and comprising: a plurality of rolling elements engaged between an inner bearing ring and an outer bearing ring and defining a first side opening beside said air enclosure and a second side opening beside said oil enclosure; at least one annular junction piece mechanically connected to said outer bearing ring and having an annular contact surface with said structural piece; an oil film disposed at said annular contact surface between said structural piece and said junction piece and laterally defined by at least two sealing rings; and sealing means covering at least part of said first side opening beside said air enclosure; the bearing further comprising: first oil circulation means for feeding said oil film with oil and for feeding said rolling elements beside said oil enclosure with oil from said oil film in order to lubricate them; and second oil circulation means, independent of the first, for recovering the oil that has been used for lubricating said rolling elements, said second oil circulation means being arranged in such a manner as to avoid oil flowing towards said air enclosure.