Crankshaft bearings for engines with start-stop systems

Abstract

The challenges placed on engine bearings are growing along with the improving efficiency of modern combustion engines. Depending on the driving situation, fuel-efficient start-stop systems for instance increase the number of cycles that take the crankshaft and the bearing half shells through a phase of mixed film lubrication. A new overlay from Federal-Mogul based on reinforced polyamide-imide prevents wear which metallic sliding surfaces tend to show during such punishing use.