Farm Machinery

For a tractor PTO driveline with joint angle $\alpha = 30^\circ$ ($\cos 30^\circ = 0.866$), driving shaft turns at constant $\omega_1 = 100\text{ rad/s}$. The minimum instantaneous speed of the driven shaft $\omega_{2,min} = \omega_1 \cos 30^\circ = 100 \times 0.866$ in rad/s is (rounded off to one decimal place):