This blue pulley assembly is for use ONLY with the spring tensioner assembly on the Taurus 3 Ring Saws. The depth of the groove on this pulley is shallower than on the other standard blue pulleys. Click on the details of the image, and then select the detailed images to see the differences between the two pulleys.

This blue pulley assembly is also used on the Taurus 2 Ring Saws as a replacement for Part #4 on the parts diagram.