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USE of Crank Shaft In IC Engine

It is used to convert reciprocating motion of the piston into rotary motion. Big end of  the connecting rod is connected to crank shaft. It can be single crank type for single crank type for single cylinder engines and multiple crank type for multi cylinder engines. The crankshaft is held in position by the main bearings. There are minimum two bearings provided to support the crankshaft. The crankshaft of a four - cylinder in - line engine. The counter weights are provided  to keep the system in perfect balance. 



Crankshaft gear, vibration damper and fan belt pulley are connected to the front end of the crankshaft. Flywheel is mounted at the rear end of  the crankshaft. The material of the crankshaft should be strong enough to resist heavy impact force of  the piston. They are made from a hot billet steel, carbon steel, nickel chromium and other heat treated alloy steels. 


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