Belt type stepless transmission driven wheel

The invention belongs to the field of transmission devices, specifically relates to a driven wheel for a belt-type continuously variable transmission system, which comprises an output shaft, a tapered fixed pulley, a tapered movable pulley, a canula arranged inside the output shaft and capable of moving axially, and a tension spring arranged on the canula. The fixed pulley and the movable pulley are connected with each other via an axial displacement member. The invention is characterized in that the axial displacement member consists of an outer shaft sleeve, an inner shaft sleeve and a roller arranged therebetween, wherein the outer shaft sleeve is fixed on the fixed pulley and the inner shaft sleeve is fixed on the movable pulley. The invention has the advantages of simple fabrication, easy maintenance, long service life, no risk of locking the driven wheel and low loss.