The pulley manufacturer has been making a long period of pulley making, with full experience in size control, and lower pulley manufacturers share the size of the pulley.
1. determine the calculation power P
P=K (coefficient of operation need to be checked) * P1 (rated power, such as rated power of motor).
2. select the belt type.
According to the power P and the speed of the small belt wheel, check the selection diagram of the mechanical design manual of N1.
3. determine the base diameter of the pulley.
The diameter of the first selected small belt wheel - checking the speed of the belt - calculating the base diameter of the moving wheel - determining the center distance a, and the reference length of the belt - checking the angle of the active wheel - the number of the roots of the belt