ABSTRACT
Elastohydrodynamic (EHD) lubrication (EHL) is a form of lubrication occurring between rolling/sliding nonconformal machine components. EHL consists of the hydrodynamic action of ¨uid entrainment at pressures high enough to elastically deform the contacting surfaces under conditions where lubricant viscosity variation with pressure is signiŸcant. ˜e discovery of EHL has provided the explanation for the eµective lubrication and satisfactory operation of rolling/sliding machine components (e.g., rolling element bearings, cam and its followers, gears, etc.).
