| 摘要 |
PROBLEM TO BE SOLVED: To elongate a life of a bearing by preventing the generation of large edge surface pressure while reducing a processing cost of the conical roller bearing.SOLUTION: In a conical roller bearing 1 according to the present invention, a drop amount Dr of a rolling face 4a of a conical roller 4 at both ends is larger than a drop amount Di of a raceway surface 2a of an inner ring 2 at both ends. The conical roller bearing has a first curved face 2h which smoothly continues to the raceway surface 2a of the inner ring 2 and a large-diameter side escape part 2g, and superfinishing is applied to the raceway surface 2a of the inner ring 2 and the first curved face 2h.SELECTED DRAWING: Figure 4 |
