This is Aluminium GT2 Timing Pulley 20 Tooth 6.35mm Bore designed for 6mm Belt. In order to achieve precise motion control, they are manufactured as a rounded tooth profile in such a way that the belt tooth fits smoothly and accurately in the pulley groove. GT2 belts and pulleys offer excellent precision at a great price. And designed specifically for precise linear motion. So when you reversing the pulley direction, there is no room for the belt to move in the groove. This pulley designed explicitly to use with GT2 6mm wide belts only – MXL belts will slip due to the different tooth profiles.
This pulley features 20 teeth, and a 6.35mm inner bore. Two set screws used to attach firmly to any 6.35mm. diameter shaft such as one of our stepper motors. This GT20 made up of Full high-quality aluminum construction ensures very light and very durable performances. These pulleys offer a wide range of applications for 3D Printers and DIY CNC Machines.