GT2 Pulley 8mm
For precise motion control, GT2 pulley offer excellent precision at a great price. The GT2 series pulleys are designed specifically for linear motion. They use a rounded tooth profile that guarantees that the belt tooth fits smoothly and accurately, so when you reverse the direction, there is no room for the belt to move in the groove.
This pulley has 20 teeth, and a 8mm inner bore. Two set screws can be used to attach it firmly to any 8mm diameter shaft. Full aluminum construction means these are very light and very durable.