1] Velocity Ratio

Velocity Ratio is the ratio of speeds of the driver and driven pulley. Let

N1, d1 = speed (rpm) and diameter of the driving pulley

N2, d2 = speed (rpm) and diameter of the driven pulley

t = thickness of the belt

Velocity Ratio, $\frac{N_{2}}{N_{1}}=\frac{d_{1}}{d_{2}}$

If the …