What Is The Function Of Counterweight In Crankshaft?

What Is The Function Of Counterweight In Crankshaft? Crankshaft: A counterweight is also used in many rotating systems to reduce vibrations due to imbalances in the rotating assembly. A typical example is counterweights on crankshafts in piston engines. What is the purpose of a crankshaft counterweight? By placing counterweights on opposite sides of the Conrod