This is a GT2 Aluminum Timing Pulley, 20 Tooth, 5mm Bore for 6mm Belt. For precise motion control, GT2 belts and pulleys offer excellent accuracy at a great price. This pulley is designed for use with 6mm wide GT2 belts only. MXL belts will slip due to the different tooth profile.
This pulley has 20 teeth and a 5mm inner bore. Two set screws can be used to secure it firmly to any 5mm diameter shaft. The all aluminium construction means they are very light and very durable.
