A toroidal continuously variable transmission is characterized by comprising an input disk, an output disk, trunnions, power rollers, and thrust rolling-element bearing, in which at least one of the input disk, output disk and power rollers of a power roller bearing is formed of an alloy steel and subjected to either carburizing processing and polishing or carbonitriding processing and polishing, and at least one of the input disk, output disk and the inner ring of the power roller bearing has an efficient hardened layer of Hv 653, which has a depth of 2.0 mm or more and 4.00 mm or less from the surface.