This metal pulley is perfect for DIY Science Projects and Experiments. It comes with a 6mm shaft/bore which makes it compatible with our wide range of DC Motors, 6mm Shafts, Couplers, Gears, etc. It can be mounted tightly on to a shaft of 6mm using the setscrew included. It has a diameter of 18mm.
Maximum belt width: 2.5 mm
Bore: 6mm (Comes with setscrew to attach it firmly onto a shaft)
Outside Diameter: 20mm
Inside Grove Diameter: 18mm
Compatible with our 6mm DC Motors, Shafts, Couplers, Gears, etec