Belt for a continuously variable transmission

摘要

A belt for a continuously variable transmission in which an aggregate of metal rings formed by laminating a plurality of pieces of endless metal rings support a plurality of metal blocks. When the ratio xi of the coefficient of friction is set to be 2.0> xi >0.65, the amount of change in the tension on the metal ring of the innermost position decreases correspondingly. In particular, when the ratio xi of the coefficient of friction is set to be 1.0, resulting in the coefficient of friction mu s between a ring and a block being equal to the coefficient of friction mu SS between a ring and a ring, the amount of change in the tension on all metal rings become uniform, and each metal ring shares an amount of change in the tension which is 8% of the entire amount. This makes it possible to decrease the amount of change in the tension on the metal ring of the innermost position and, hence, to increase the durability of the aggregate of metal rings as a whole.