Connecting rod bearing 0.50 for Komatsu GD511A

The connecting rod bearing 6207-38-3300 serves as a precision interface between the connecting rod and the crankshaft within the S6D95L-1 engine. This 0.50 mm undersize component is intended for engines where the crankshaft journal has been machined down by 0.50 mm to restore proper clearance during a rebuild. It maintains the necessary oil film gap required for hydrodynamic lubrication, allowing the rod to rotate smoothly around the crankshaft journal while supporting the forces generated by the piston movement.

This part is designed for fitment in Komatsu GD511A and GD511A-1 motor graders equipped with the S6D95L-1 engine. It is manufactured to meet the specific dimensional requirements for this engine series. Proper installation of this undersize bearing is necessary to ensure the correct oil clearance and prevent metal-to-metal contact between the rotating assembly and the connecting rod.

Connecting rod bearings function by providing a low-friction surface that facilitates the conversion of reciprocating piston motion into rotational power at the crankshaft. By maintaining precise oil clearance, these bearings enable the formation of a pressurized oil film that separates the moving parts, reducing friction and wear during engine operation.