| 摘要 |
PROBLEM TO BE SOLVED: To provide a two-split roller bearing whose rolling fatigue life can be prolonged while preventing the axial movement of rollers without providing a collar on a bearing ring and preventing an increase in contact bearing pressure by minimizing the skewing of the rollers. SOLUTION: The roller bearing comprises an outer ring 1, a ring-shaped cage having a plurality of pockets arrayed in the circumferential direction, and the plurality of rollers 2 held in the pockets of the cage, the outer ring 1 and the cage being each slit into two split bodies which are arrayed in the circumferential direction. Each of inner peripheral faces 1a, 1b of the outer ring 1 has both axial ends groove-shaped with their diameters gradually smaller as tending closer to the side edge. Each of the rollers 2 has an axial center portion 2a whose outer peripheral face is formed cylindrical and which has contact with the outer peripheral face of a shaft or an inner ring. It also has both axial ends 2b which are formed tapered and which have contact with the inner peripheral face 1b of the outer ring 1. COPYRIGHT: (C)2008,JPO&INPIT
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