What is crank shaft in engine?

A crankshaft is a key component of an engine, responsible for converting the linear motion of the engine's pistons into rotational motion. The crankshaft is typically made of high-grade steel and is used to support the connecting rods that transfer the motion of the pistons to the engine's flywheel.

The crankshaft features several counterweights that help to balance the engine's rotational mass, reducing vibrations and improving overall engine performance. Additionally, the primary and secondary journals on the crankshaft support the bearings that allow the crankshaft to rotate freely inside the engine block.

During operation, the rotating crankshaft delivers power to the transmission or drivetrain, which in turn translates the engine's rotational motion into vehicular motion. Regular maintenance of the crankshaft is important to ensure maximum engine performance and longevity. This includes proper lubrication, regular inspection for damage or wear, and balancing the crankshaft if necessary.