Kubota Crank Shaft
Crankshaft / Crankshaft becomes a major component in an internal combustion engine. Crankshaft becomes the center axis of any piston movement. In general, crankshaft made of cast iron because it must be able to accommodate the moment of inertia produced by the movement up and down the piston.
So the function of crankshaft engine parts is CHANGING the up and down motion generated by the piston into a circular motion which will later be transmitted to the transmission. Crankshaft must be made of strong material and able to withstand a load or a strong moment because the crankshaft must receive a high engine rev.
