These hub-mountable Metal pulleys can be used to drive wheels or other pulleys with a belt.
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 has 6 holes. It can be mounted tightly on to a shaft of 6mm using the setscrew included.