| 摘要 |
A cage of the invention is equipped with a first annular portion 21 and a second annular portion 22 that are disposed respectively at both ends in an axial direction, and a plurality of columns 26 which couples the first annular portion 21 and the second annular portion 22 to each other, and which forms a plurality of pockets 25 in which rolling elements 18 are accommodated. The cage is composed of a first body portion 30 and a second body portion 35 that are arranged in the axial direction of the bearing and that are coupled to each other via interlocking columns provided on each of the first and second body portions. At least one of the first body portion 30 and the second body portion 35 has an outer diameter face having recessed therein an oil groove 40 whose base end leads to a corresponding pocket 25. |
