An  idea  to  increase  reliability  of  the  belt  automobile  variator  (stepless  gear  box).

Shulga V.I.

https://shulga.tripod.com/mixt_2/variator/E.htm

Instead of the integral drive belt to use a circuit which parts "are filled" ("built-in") in the elastic pillows covered from lateral faces with any wear-resistant substance.