| 摘要 |
PROBLEM TO BE SOLVED: To provide a tapered roller bearing in which high-moment rigidity and long life are enabled.SOLUTION: The tapered roller bearing 1 includes: an outer race 2 having an outer ring raceway surface 2a in an inner peripheral surface; an inner race 3 having an inner ring raceway surface 3a in an outer peripheral surface; a plurality of tapered rollers 4 disposed between the outer ring raceway surface 2a and the inner ring raceway surface 3a so as to be rotatable. A large flange 3b is formed at a large diameter side end part of the inner race 3 and the inner ring raceway surface 3a is continued to a small diameter side end part 3c of the inner race 3. A contact angle α is set between 35° and 55°. |
