Numerical Analysis of Isothermal EHL for Tapered Roller

Isothermal elastohydrodynamic lubrication (EHL) between a tapered roller and an infinite plane was investigated. Distributions of the EHL pressure and film thickness in the contact were analyzed. Influences of the end modification on pressures and film thicknesses were discussed. It is found from numerical results that, geometrical characteristics of tapered roller can lead to conical shaped distributions of EHL pressures and film thicknesses. It is also found that end modification decreases high pressures and increases film thicknesses in the regions of roller's ends.