3D Printer Parts POM Pulley Wheel 625zz Idler Pulley Gear Passive Round Wheel Compatible for Creality Ender-3 CR-10 CR-10S FDM 3D Printers Product Advantage • The pulleys are produced by high-precision automatic lathe machining, with machining error within 0.005mm. • Smooth motion, high printing precision, low noise, can greatly improve the printing speed. • Perfect For 3D Printers: CR-10, CR-10S, Tevo Tarantula, CNC router hybrid, 8020 3030 and so on. • This pulley bearing adopt of Motor grade bearings, rust resistant, wear resistant, excellent friction resistance and operate smoothly.