Zeberoxyz 2PCS Set GT2 Synchronous Wheel 20&40 Teeth 5mm Bore Aluminum Timing Pulley with Length 200mm Width 6mm Belt (20 40T 5B 6)

GT2 pulleys material: made of high-quality aluminium alloy, surface oxidation treatment, durable, fine workmanship and high transmission accuracy Precise transmission: no slipping at work, with constant transmission ratio Smooth transmission, precise tooth spacing, high transmission efficiency, energy saving effect Simple structure: easy to install, easy to assemble and disassemble Scope of application: widely used in milling machine, gear mill, drill, rolling machine or other machine transmission