proposed flat belt drive system is being considered for an application in which the input motor shaft speed (driving pulley) is 3600 rpm, the approximate driven shaft speed requirement is 1440 rpm, the power to be transmitted has been estimated as 0.5 horsepower, and the driven device is known to operate smoothly. The desired centre distance between driving and driven pulleys is to be approximately 10 inches. Engineering management has suggested using a belt fabricated by using polyamide tension strips. Select a flat belt for this application. Hint: Use the formula sheet of belt drive. Empirical Experience-Based Design Data' for High-Performance Flat Belts Allowable Tension per Thickness, Unit Width, T, Ib/in Minimum Pulley Diameter, dmie in Specific Weight. Ib/in of Friction Coefficient Material . in Polyamide 0.03 0.035 0.5 10 35 0.6 0.05 1.0 2.4 0.035 0.5 0.07 0. 0.11 0.13 60 60 0.051 0.037 0.042 2.4 0.8 4.3 9.5 100 0.8 0.20 175 0.039 0.8 0.25 275 13.5 0.039 0.8 Urethane 0.06 0.38-0.50 0.038-0.045 0.7 0.08 10 0.50-0.75 0,038-0.045 0.7 0.09 19 0.50-0.75 0.038-0.045 0.7 Polyester cord 0.04 57-225 1.5 Application Factor, K. Driven Machine Characteristic Prime Mover Characteristic Moderate avy Shock Uniform Shock Uniform 1.00 1.25 1.75 (e.g., electric motor, turbine) Light shock (c.g., multicylinder engine) Medium shock or higher 2.00 or higher 2.25 1.25 1.50 1.50 1.75 (e.g., single-cylinder engine) or higher