Zeberoxyz 2PCS Set GT2 Synchronous Wheel 20&30 Teeth 5mm Bore Aluminum Timing Pulley with Length 200mm Width 6mm Belt (20 30T 5B 6)

GT2 Pulley Material: Made of high quality Aluminum Alloy, Surface oxidation treatment,durable, fine workmanship and high transmission accuracy Accurate transmission: without slipping at work, having a constant gear ratio Smooth transmission, precise tooth pitch, High transmission efficiency, energy-saving effect Simple structure: Easy to install, easy to assemble and disassemble Application Scope:Widely used in milling machine, gear shaper, drilling machine, hobbing machine or other machinery transmission occasions