| 摘要 |
A belt for a continuously variable transmission includes a metal ring assembly formed of a plurality of endless metal rings laminated one on another, and a large number of metal elements each having a ring slot into which the metal ring assembly is fitted. In the belt, a crowning radius of the metal ring in a free state is set smaller than a crowning radius of a saddle face of the ring slot supporting the innermost metal ring. Thus, the metal ring assembly can be centered to a central portion of the saddle face, whereby a difference between a tensile stress at a central portion of an outer peripheral surface of the metal ring and a tensile stress at opposite ends of the outer peripheral surface can be reduced in an area where the metal belt is wound around a pulley, thereby preventing a reduction in durability.
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