Machine Design I

A 300-mm-wide polyamide A-2 flat belt is used to connect a 100-mm-diameter pulley to drive a larger pulley with an angular velocity ratio of 0.5. The center to center distance is 5.4 m. The angular speed of the small pulley is 1750 rev/min as it delivers 1.5 kW. The service is such that a service factor (K_s) of 1.25 is appropriate. Find the (H_a,n_{fs}) and belt length.