n_pn 20 "Number of teeth, pinion"
dp_pn 50[mm] "Pitch diameter, pinion"
n_wh 30 "Number of teeth, wheel"
dp_wh 75[mm] "Pitch diameter, wheel"
alpha 25[deg] "Pressure angle"
wg 10[mm] "Gear width"
gr n_wh/n_pn "Gear ratio"
theta 0[deg] "Pinion rotation"
twist 0.5[deg] "Wheel twisting"
omega 600[rad/s] "Angular velocity of drive shaft"
T_ext 100[N*m] "External torque"