| 摘要 |
PROBLEM TO BE SOLVED: To provide a needle cage in which a lubrication member is disposed in a holder, and that attains maintenance free of lubrication, facilitates assembly, can reduce a manufacturing cost and can reduce rotation torque of a bearing.SOLUTION: A needle cage 30 comprises: a holder 1 comprising an annular part 4 and a plurality of columnar parts 5 integrally formed with it; and a roller 2 disposed respectively in a lubrication member 3 fitted into the inner peripheral surface of the holder 1 and in a pocket 6 in between the columnar parts 5. The lubrication member 3 comprises an annular part 16 formed at both end parts of a columnar part 17 integrally with the columnar part 17 disposed so as to contact with the columnar part 5 of the holder 1. An oil supply part 22 of the columnar part 17 supplies lubricant so as to slidably contact with the outer peripheral surface of a rotational shaft on which the rolling surface of the roller 2 rolls.SELECTED DRAWING: Figure 1 |
