This is Aluminum GT2 Timing Pulley 36 Tooth 5mm Bore For 6mm Belt. For precise motion control, GT2 belts and pulleys offer excellent precision at a great price. This pulley is meant for use with GT2 6mm wide belts only MXL belts will slip due to the different tooth profile.
This pulley has 36 teeth, and a 5mm inner bore. Two set screws can be used to attach it firmly to any 5mm diameter shaft. Full aluminum construction means these are very light and very durable.
1 x GT2 6mm Belt Width 36 Teeth 5mm Bore Timing Pulley