| 摘要 |
PROBLEM TO BE SOLVED: To reduce the manufacturing cost of a cylindrical roller bearing and increase the loading capacity. SOLUTION: An inner ring 2 and/or an outer ring 3 is formed cylindrically extending over the length Lz in the central position 8 of their races 5, 6, and the length Lz of the race central part is at least 50% or preferably 70% of the roller length Lw of the cylindrical roller 4. An angleαformed between a tangential line 9 in a race profile form 10 of the inner ring 2 or the outer ring 3 and the central line 13 of the inner ring 2 or the outer ring 3 increases continuously and gradually from the moving point 11 of the races 5, 6 to the edge 12 of the central position 8 toward the end 14 of a bending face 17. |
