Crankshaft for Cummins QST30

The crankshaft, part number 4095435, serves as a central component within the Cummins QST30 engine. Its primary function is to transform the linear reciprocating movement of the engine pistons into rotational energy, which provides the necessary power output for heavy machinery, power generation equipment, and marine applications. The component features internal oil passages designed to facilitate the lubrication of the bearings, maintaining a consistent oil film to manage friction and heat during operation.

This crankshaft is compatible with the Cummins QST30 engine model. The design incorporates specific configurations for the crankpins to connect to the connecting rods, ensuring the correct firing order and engine balance. Proper alignment and balance of this component are necessary for the mechanical operation of the engine assembly.

In internal combustion engines, the crankshaft acts as the main rotating shaft. It is supported by main bearings that allow it to rotate within the engine block. By connecting to the pistons via connecting rods, the crankshaft translates the force generated by combustion into the torque required to perform work.