Patent ID: 6805654
Filing Date: 2004-10-19
Classification: F16H

Abstract:
A toroidal-type continuously variable transmission, comprising:an input shaft into which a rotational force is input and including an oil passage formed in a center portion thereof so as to extend along an axial direction thereof; an input side disk rotating integrally with the input shaft; an output side disk disposed concentric with and opposed to the input side disk; a ball spline for supporting the input side disk disposed on the outer peripheral surface of the input shaft, the ball spline including a plurality of ball spline grooves formed in the outer peripheral surface thereof so as to be spaced from one another at a given interval in the peripheral direction thereof; and a plurality of oil grooves for connecting together the ball spline grooves, wherein the input shaft includes an oil hole for allowing the oil grooves and the oil passage to communicate with each other.