Crankshaft for MAN

The crankshaft OM409/4 serves as a primary internal component within MAN internal combustion engines used in industrial cranes and heavy machinery. Its function involves converting the linear reciprocating motion of the pistons, transferred via the connecting rods, into the continuous rotational motion required to drive the equipment. This component is engineered to manage the forces of torsion, bending, and compression present during engine operation.

This specific part is manufactured by MAN and is designed to meet the technical requirements of their engine systems. The design features precision-machined connecting rod and main bearing journals to interface with the engine bearings. Maintaining the integrity of these journals is necessary for the rotational efficiency of the engine assembly.

In an internal combustion engine, the crankshaft acts as the central rotating shaft that delivers power to the transmission or hydraulic pump drive system. It must maintain precise alignment within the engine block to ensure smooth operation and proper timing of the piston strokes. Proper installation and maintenance of the crankshaft are required to support the overall mechanical output and operational stability of the engine.