| 摘要 |
PROBLEM TO BE SOLVED: To provide a roller bearing capable of preventing a roller from falling from an outer ring without using a roller of a special shape having small-diameter ends at both roller ends.SOLUTION: In this roller bearing 1 including an outer ring 2 formed into a cylindrical shape by pressing of a steel plate and including a raceway 21 at the axial center part, and a plurality of rollers 3 arranged on the raceway 21 of the outer ring 2, the outer ring 2 includes, at both ends, folded parts 22 folded to the radial inside toward end faces 32 of the rollers 3, and also includes pressing members 5 between at least one-side folded parts 22 and the end faces 32 of the plurality of rollers 3, and the plurality of rollers 3 are held in the outer ring 2 by pressing the end faces 32 of the rollers 3 in the axial direction by the pressing members 5. In the roller bearing, a conical inner surface 23 increased in diameter from a bearing outer side toward an axial roller side is formed in the inner diameter part of the folded part 22, and in each of the pressing members 5, a conical outer surface 52 in contact with the conical inner surface 23 is formed in the radial inner side of the conical inner surface 23. |
