Crankshaft: Types, Functions & Examples

Aug 16,2023

A crankshaft is a mechanical part that is used to convert the reciprocating motion of a piston into rotational motion. This rotary motion further reaches the flywheel and generates the necessary torque required for its operation. It is connected to a piston with the help of a connecting rod.

A crankshaft is a prominent part of the power transmission system of an engine and is mainly used to drive a variety of parts of a machine such as a camshaft, radiator fan, etc. A crankshaft is responsible to transmit motion to a camshaft, which in turn controls the opening and closing of the inlet and exhaust valves of an engine.

A crankshaft mechanism typically consists of crank and crankpins attached to connecting rods. A crankshaft rotates at a high speed; therefore, centrifugal force acts on it. Also, the piston and connecting rod exert a significant amount of impact force on its surface.

Crankshaft

Working of a Crankshaft

Why a Counterweight Crankshaft?