Evaluations of Ceramic Bearings Used in Electric Water Pumps

Abstract

This paper discusses various design aspects and experimental results regarding the selection of bearing materials in combination with different shaft materials utilized by electric water pumps. Acceleration tests have been conducted prior to endurance life tests which simulate actual automotive applications. The potential dangers of severe wear in certain material combinations is also discussed.

Keywords

• electric water pump
• ceramic journal bearing
• endurance life test
• automotive application