A crankshaft is a crucial component in an engine that converts the linear motion of the pistons into rotational motion. This transformation allows the engine to power vehicles like cars and motorcycles. The crankshaft is typically made of strong materials to withstand the intense forces generated during combustion. In a typical engine, the crankshaft is connected to the pistons, which move up and down as fuel burns. As the pistons move, they push against the crankshaft, causing it to rotate. This rotation ultimately drives the wheels of the vehicle, enabling it to move forward.