| 摘要 |
PROBLEM TO BE SOLVED: To improve workability, reduce cost, prevent the occurrence of an edge stress and achieve long service life by uniforming an axial surface pressure distribution without increasing the drop amount of crowning even when being utilized under high load in a cylindrical roller bearing or a conical roller bearing. SOLUTION: A roller 4 is formed to be hollow or provided with dents 5, 6 in a side end surface thereof so as to lower the rigidity of a roller end. By so doing, the occurrence of an edge stress of the roller end is prevented. At least one of the rolling surface 4a of the roller 4, the raceway surface 2a of the inner ring 2 and the raceway surface 3a of the outer ring 3 is provided with crowning so as to uniform an axial surface pressure distribution. COPYRIGHT: (C)2007,JPO&INPIT |
