An epicyclic gear train as shown in Fig.15.34, has a sun wheel S of 30 teeth and two planet wheels P - P of 45 teeth. The planet wheels mesh with the internal teeth of a fixed annulus A. The driving shaft carrying the sun wheel transmits 4 kW at 360 rpm. The driven shaft is connected to an arm, which carries the planet wheels. Determine the speed of the driven shaft and the torque transmitted, if the overall efficiency is 95%. Arm Fig.15.34 Epicyclic gear train