Continuously variable transmission belt and method of producing metal element of the belt

摘要

A continuously variable transmission belt, including a metal ring assembly (40) including a plurality of metal rings, and a plurality of metal elements (100) which are retained by the metal ring assembly (110) and each has a saddle surface (105A) contacted with an inner circumferential surface of the metal ring assembly. The saddle surface (105A) includes opposed end peripheries spaced from each other in a traveling direction of the belt and a curved portion located at each of the opposed end peripheries. The curved portion has a range length extending in the traveling direction of the belt and a radius of curvature larger than the range length. The metal element (100) is produced by a method including subjecting a metal sheet to presswork to form a workpiece, subjecting the workpiece to heat treatment and deburring and then to preliminary beveling and subsequent beveling.