Of the toroidal continuously variable transmission

In the continuously varaiblen transmission of the toroidal the input side disk, the concave surface of the output side disc, the convex surfaces of the drive rollers, the raceway surfaces of the inner races of the power roller bearing and the raceway surfaces of the outer races of the power roller bearing is at least one subjected to a heat treatment, a grinding treatment of the concave surface and provided with a super finish, depending on a shot-peening process is applied and then subsequently again Superfinishing is performed so that the resulting superficial residual compressive stress is in a range from -780 to -1800 MPa (Fig. 2).