Wide Applications: Widely used in mechanical transmission such as 3D printers, drilling machines, milling machines, gear machines, CNC lathes, etc. How to use it? Remove the pulley first, install the belt on the pulley, and then install the pulley on the shaft to fix it, the wrench help install and remove screws. Advantages: The transmission is accurate and stable with high efficiency, there is no sliding when working, it has the functions of buffering and damping, low noise, convenient maintenance. Aluminum Alloy Material: The synchronous wheel is made of aluminum alloy with a high finish. Used in conjunction with timing belts Timing Pulley Pulley and Belt Pulley and Belt Add to Cart Add to Cart Buying Options Customer Reviews 4.4 out of 5 stars 13 5.0 out of 5 stars 3 — Price $12.17$12.17 $15.69$15.69 — no data Teeth: 80 T 20 T and 36 T 20 T and 80 T