Study on influencing factors of lubrication performance of water-lubricated micro-groove bearing

The influence coefficient method (ICM) was proposed to evaluate the elastic deformation, and the elastic-hydrodynamic lubrication (EHL) model of the water-lubricated micro-groove bearings was developed. The model was experimentally validated, and the effects of the eccentricity ratio and bearings' materials on the lubrication performance of the micro-groove bearings were studied. The results show that the effects of the micro-grooves on the hydrodynamic lubrication of water-lubricated bearings are beneficial for the smaller eccentricity ratio and little for the smaller Young's modulus and Poisson's ratio.