STEPLESS SPEED CHANGE TRACTION GEAR

摘要

A stepless speed change traction gear wherein a plurality of conical rollers each of which is provided with a conical surface frictionally engaging with an internal surface of a speed changing ring, a flat surface which is perpendicular to the axis of the conical surface and an annular concave surface provided coaxially with the conical surface, and a track ring frictionally engaging with the flat surface of the conical roller. The stepless speed change traction gear has a speed range of 0 to nearly 1.0. This traction gear is not provided any "speed increasing gear means" for the widening of the speed range which offers various disadvantages to the traction gear.