| 摘要 |
<p>A needle roller bearing is arranged with a reduced frinction between a retainer and the remainder of the bearing construction. The retainer (A) is formed of a ring-shaped connecting member and a plurality of roller suppoters (2) which are formed integrally with the connecting member (1) therewithin at longitudinally middle points thereof. The roller supporters (2) are disposed with equal distances therebetween to provide spaces (R) for rotatably supporting needle rollers (B). The retainer (A) is supported at the ring-shaped connecting member (1) by an annular groove (5) formed in the outer race (C)</p> |
