| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tapered roller bearing capable of preventing damage of a retainer when installing an inner ring in the retainer for holding a tapered roller, and capable of preventing the tapered roller and the retainer from separating from the inner ring, while maintaining strength of a column part. <P>SOLUTION: This tapered roller bearing includes the inner ring having a tapered inner ring raceway surface 1s and having a small collar part 11 on the small diameter side of the inner ring raceway surface 1s and a large collar part 12 on the large diameter side, a plurality of tapered rollers 3 rollingly arranged between an outer ring raceway surface of an outer ring and the inner ring raceway surface 1s and connecting a small diameter side end surface 31 and a rolling surface 33 via a chamfering part, and the retainer 4 for holding the tapered roller 3 at a predetermined interval in the circumferential direction, wherein a plurality of tapered rollers 3 are incorporated into the inner ring 1 together with the retainer 4 by allowing the chamfering part 34 of the tapered roller 3 held by the retainer 4 to get over the small collar part 11. The chamfering part 34 of the tapered roller 3 is constituted by reducing a chamfering dimension dx3 of the small diameter side end surface 31 more than a chamfering dimension dy3 of the rolling surface 33. <P>COPYRIGHT: (C)2012,JPO&INPIT |
