a process for manufacturing a v - pulley is disclosed . a metallic cylindrical pulley blank is integrally formed by removing material of a circumferential surface of the pulley blank to form a plurality of circumferential v - belt grooves . the pulley blank is subjected to precision machining and shot blasting to form a rough shot blasting layer on the side surfaces of the v - belt grooves . at least one through hole is axially drilled along a longitudinal central axis of the pulley blank from one axial end to opposite axial end of the shot blasted pulley blank to fluidly connect all of plurality of v - belt grooves followed by mounting and fastening a mold for casting tooth rings at the bottoms of the plurality of v - belt grooves and receiving a metal casting fluid into the plurality of v - belt grooves from one end portion of the through hole to form the tooth rings .