Abstract: There is provided a toroidal continuously variable transmission capable of ensuring processability and conveyability of a power roller inner ring while reducing oil leakage from an inner end surface of the power roller inner ring and a decrease in rigidity of the power roller inner ring. A power roller 40 of the toroidal continuously variable transmission includes a power roller inner ring 50 sandwiched between both disks 1 and 2, a power roller outer ring 60 that is provided in a trunnion 35 and rotatably supports the power roller inner ring 50, and an inner ring hole 52 provided in the power roller inner ring 50 so as to extend in an axial direction of the power roller inner ring 50, in which an end surface hole 58 communicating with an inner ring hole 52 is provided in an inner end surface 54 of the power roller inner ring 50, and the end surface hole 58 is closed by a closing member 80 separate from the power roller inner ring 50.

Abstract: A toroidal continuously variable transmission includes a preload spring disposed between a rotary assembly including a first disc and a pressing device, and a driving force transmission shaft, and a thrust bearing disposed between a first member and the preload spring, the first member being one of the rotary assembly and the driving force transmission shaft. In a direction of an axis line, a gap is formed between a second member and the thrust bearing, the second member being the other of the rotary assembly and the driving force transmission shaft. A dimension of the gap in the direction of the axis line is less than a deformation amount of the preload spring in the direction of the axis line, at an elastic limit.

Abstract: A toroidal continuously variable transmission includes a preload spring disposed between a rotary assembly including a first disc and a pressing device, and a driving force transmission shaft, and a thrust bearing disposed between a first member and the preload spring, the first member being one of the rotary assembly and the driving force transmission shaft. In a direction of an axis line, a gap is formed between a second member and the thrust bearing, the second member being the other of the rotary assembly and the driving force transmission shaft. A dimension of the gap in the direction of the axis line is less than a deformation amount of the preload spring in the direction of the axis line, at an elastic limit.