... transmission belt is used on cnc machine, usually be used with gear rack, wheel rack together.As a part of transmission, it widely used on cnc machinery ... some relating partsball screwlinear guide rail , bearings, couplings, support unit of ball screw, screw nuts , sealsIf you have any questions , ... me know, I'll try my best to give you a good answer!Our Jinan Lanhai Machinery Transmission Co., LTd . ...