Abstract
HONDA succeeded to research and developed the Metal V-Belt in-house, which enables to reduce the minimum pitch radius. The Metal V-Belt is essential for compactness of CVT and to increase the speed ratio range. Increase of stress in the ring caused by the decrease of the minimum pitch radius was prevented by improved element shape, which reduce the pitching moment of the element and adjusted clearance. Gap between was adjusted by results of measurement of the gap using special sensor and telemeter system at operation. Decrease of pitching moment by shorted element V-surface and improved construction of the element which never bites the ring assembly even at pitching motion by widen slot decrease stress of rings. These effects were also proved by numerical analyses.