Coefficient of Friction between Belt and Pulley

Coefficient of Friction between Belt and Pulley Points : coefficient of friction between belt and pulley Coefficient of friction between belt and pulley depends upon follow factors:
1. Material of belt
2. Material of pulley
3. Slip of belt
4. Speed of belt
According to C.G. Barth, coefficient of friction (μ) for oak tanned leather belts on cast iron pulley, at point of slip