Feature:1. Made of high quality aluminum, this timing pulley has high hardness, wear resistance and durability.2. The pulley is suitable for bearing with outer diameter of 14mm, and there are eight holes, four M4 counter bores, and four through holes.3. The through hole adopts a double‑sided countersunk hole design, which can avoid the interference of the screw head used for installation.4. The 5mm spacing provides space for higher teeth, so that the pulley reduces the possibility of belt slippage.5. It is suitable for CNC machine tools, machines, engraving machines, intelligent robots, engineering equipment, equipment, etc.How to Use:When you want to use more shafts of different specifications as the fixed pulley or output shaft, you can use the high speed shaft clamp and the high speed and high load shaft clamp to install and fix the pulley, any external shaft clamped by the shaft clamp Any shaft with a diameter less than 14 mm can pass through the 14 mm center hole of the pulley. Because you can choose a high speed shaft clamp and a high speed high load shaft clamp to install and fix the pulley, the pulley can provide greater support to resist heavy loads. And greatly improve the problem of easy movement, slipping or loosening of the