A polyamide A-3 flat belt 6 in wide is used to transmit 15 hp under light shock conditions where K s = 1.25, and a factor of safety equal to or greater than 1.1 is appropriate.
The pulley rotational axes are parallel and in the horizontal plane. The shafts are 8 ft apart. The 6-in driving pulley rotates at 1750 rev/min in such a way that the loose side is on top. The driven pulley is 18 in in diameter. The factor of safety is for unquantifiable exigencies.
(a) Estimate the centrifugal tension F c and the torque T.
(b) Estimate the allowable F 1 , F 2 , F i and allowable power Ha.