Continuously variable traction roller transmission

摘要

A continuously variable traction roller transmission is disclosed. A torque transmission shaft is provided at one end thereof with a flange portion. A raceway track is formed on a connecting part between an inner side wall of the flange portion and an outer peripheral wall of the torque transmission shaft. Another raceway track is formed on an inner peripheral edge portion of an outer wall of a cam plate which constitutes a pressure mechanism. A plurality of balls are arranged between both of the raceway tracks, whereby a thrust ball bearing is constructed. Thrust load exerted on the cam plate is borne by the thrust ball bearing.