Abstract:Considering the elastic deformation of the rubber bush,the water lubricated bearings elastohydrodynamic lubrication(EHL)model was set up and calculated with numerical method,the effects of the thickness of water lubricated rubber material on the EHL performance of bearings were analyzed in theory.The results show that same rubber materials with different thickness within a certain range have a great impact on the water film pressure and thickness of water lubricated bearings.Along with the rubber layer thickness increasing,the water film pressure is decreased,the water film thickness is increased and a better EHL performance is obtained.Accordingly,the friction on the water lubricated bearings is reduced and the friction coefficient is decreased.