Connecting rod bearing for Cummins 6BTAA5.9-C178

The connecting rod bearing, part number 3969562, is a component within the internal combustion engine assembly. It provides a low-friction surface between the connecting rod and the crankshaft journal, facilitating the rotational movement required to convert the linear energy of the piston into the rotational energy of the crankshaft. This component is designed to maintain the necessary clearances for effective hydrodynamic lubrication, which protects both the connecting rod and the crankshaft journal from wear during engine operation.

This component is compatible with several Cummins engine models, including the 6BTAA5.9-C178, KTA38C-1050, QSM11-C335, QSM19-C700, and the YB7725XL. These engines are frequently utilized in industrial cranes and heavy machinery, such as the Grove YB7725XL. Precise manufacturing ensures that the bearing maintains the required tolerances for the specific engine configurations listed.

Connecting rod bearings function by supporting the loads transmitted from the piston through the connecting rod to the crankshaft. By maintaining a thin film of oil between the bearing surface and the crankshaft journal, the bearing prevents metal-to-metal contact, allowing the engine to operate under the high-pressure conditions typical of heavy-duty machinery.