A torque $T=60\mathrm{.}0N*m$ is applied to the shaft EFG, which is running at constant speed and contains

gear $F.$ Gear $F$ transmits torque to shaft ABCD through gear $C,$ which drives the chain sprocket at $B,$

transmitting a force $P$ as shown. Sprocket $B,$ gear $C,$ and gear $F$ have pitch diameters of $a=195\mathrm{.}0mm$

$,b=325\mathrm{.}0mm,$ and $c=162\mathrm{.}5mm,$ respectively. The contact force between the gears is

transmitted through the pressure angle $=20.$

Combine these stresses and determine the maximum principal normal and shear stresses in the shaft.

The maximum principal normal stress is

MPa.

The maximum shear stress is

MPa.