| 摘要 |
The toroidal-type continuously variable transmission comprises an input shaft rotatably supported, an input side disk, an output side disk, a plurality of trunnions, a plurality of power rollers, and a plurality of thrust rolling bearings 32, in which the mutually opposed inner surfaces of the input side and output side disks are respectively formed as concave surfaces each having an arc-shaped section, the peripheral surfaces of the power rollers are formed as spherical-shaped convex surfaces, and the peripheral surfaces of the power rollers are contacted with the inner surfaces of the input side and output side disks. In the thus structured toroidal-type continuously variable transmission, each of the thrust rolling bearings 32 is made of high carbon chromium bearing steel and is also carbonitrided.
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