| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tapered roller bearing which hardly causes skewing even if the total length of rollers becomes long, and can cope with a high-speed rotation by keeping a contact pressure at a flange portion low, and is compact, and can reduce its cost, and further to provide a structure for supporting the pilot portion shaft of a transmission. <P>SOLUTION: The tapered roller bearing has conical raceway surfaces 1aa, 1ab on the outside periphery of an inner race 1 so as to correspond to respective rows of the double row rollers 3A, 3B. The tapered roller bearing is configured such that flange surfaces 5a, 7a, 7b, 6a are provided on both sides of the respective raceway surfaces 1aa, 1ab, and the cone centers of the raceway surfaces 1aa, 1ab of the respective rows coincide with each other at a point. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
