The typical step pulley consists of three to five grooves.
Step Pulley Manufacturer
This type of step pulley is found on equipment such as drill presses, lathes and milling machines where different operating speeds can be produced simply by changing the belt to a different pulley size. The step pulley is always operated in pairs, and when the belt is changed on one pulley, it is also changed on the corresponding pulley on the other side of the belt.
