Bearings and bushings carry the rotating and sliding loads throughout the engine and its driven equipment, separated from the surfaces they support by a film of oil only microns thick. This group covers main and connecting rod shells, camshaft bearings, thrust washers, small-end and rocker bushings, and rolling element bearings in pumps, alternators and fan drives. Shells are supplied in standard and undersize grades to suit reground crankshafts, and Doosan overhaul kits typically include main bearings, rod bearings and thrust washers as standard. Excavator duty with frequent load reversals and extended idling is harder on plain bearings than steady-load running.
AMS Parts supplies a wide range of bearings & bushings components for Doosan engines used in power generation, marine, and industrial applications. Browse the full range below, or contact us for specific requirements.
Yes. Full overhaul kits typically include main bearings, connecting rod bearings and thrust washers in standard size.
Measure the crankshaft journal after any machining and order the matching undersize grade. Fitting the wrong grade produces an incorrect running clearance.
Premature failure indicates an underlying cause — oil contamination, low pressure, incorrect clearance, or a journal outside specification.