Roller bearing with lubrication channel

摘要

The invention relates to a roller bearing (1) comprising a first race (3), a second race (2), said races (2, 3) being coaxial and in relative rotation about a central axis {Xl), and a row of rollers (4). The first race (3) also comprising a circumferential groove (81, 101, 201, 301) provided on a surface (37) radially opposite the first bearing track (32), and at least one hole (82, 83, 102, 103, 202, 203, 302, 303) traversing said race (3) substantially radially and opening out close to the first bearing track (32). The first race (3) also comprises a secondary groove (84, 85, 104, 105, 204, 205, 304, 305) extending in a substantially radial direction and connecting the circumferential groove (81, 101, 201, 301) to the hole (82, 83, 102, 103, 202, 203, 302, 303), it being possible for lubricant to be transferred from the circumferential groove (81, 101, 201, 301) to the hole (82, 83, 102, 103, 202, 203, 302, 303) via said secondary groove (84, 85, 104, 105, 204, 205, 304, 305).