| 摘要 |
PROBLEM TO BE SOLVED: To improve durability while suppressing a cost increase.SOLUTION: A continuously variable transmission includes a shaft 60, first and second rotary members 10, 20, a sun roller 30, a carrier 40, a plurality of planetary balls 50, axial force generating devices 71, 72 for generating axial force in the axial direction to push the first and second rotary members 10, 20 against the planetary balls 50, and a tilting force imparting part 46 for tilting the planetary balls 50 to change a gear ratio between an input and an output. The Young' moduli of a contact part P1 (p2) and a contact preparatory part of one of the first and second rotary members 10, 20 with the planetary balls 50 are greater than the Young's moduli of a contact part P2 (P1) and a contact preparatory part of the other with the planetary balls 50. |
