| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing capable of comparatively facilitating assembling, suppressing the falling of a rotation shaft, and decreasing size.SOLUTION: First transmission grooves abutting on a rolling body 15a in a first row are provided on both of an outer ring 11 and an inner ring 14. The outer ring 11 is provided with the first transmission groove 12a, and the inner ring 14 is provided with the first transmission groove 12b. A second transmission groove 13b abutting on a rolling body 15b in a second row is provided only on the inner ring 14. The rolling body 15a in the first row abuts on the first transmission groove 12a of the outer ring 11 and the first transmission groove 12b of the inner ring 14, and the rolling body 15b in the second row abuts on the second transmission groove 13b of the inner ring 14 and a flat portion 16 of the outer ring 11. |
