Most of the rolling bearings used in engineering practice are lubricated with greases,and the greases exhibit nonNewtonian rheological behavior and the corresponding lubrication process has time effects.Therefore,the accurate analysis of grease lubrication is difficult.The development of the elastohydrodynamic lubrication of greases was summarized with respect to theoretical study and experimental investigation,based on the Ostwald constitutive model,the pressure distribution and film thickness distribution of elastohydrodynamics lubrication with grease were analyzed with the GaussSeidel iterative method and Jacobi dipole iterative method.The effects of rheological index,load and entrainment velocity on the properties of grease lubrication were examined.The results demonstrate that the influences of load and entrainment speed on grease film thickness and pressure distribution are similar to that of oil lubrication,and the stable grease lubrication film thickness is close to half of that of base oil under corresponding conditions.The more significant the nonNewtonian characteristic of the greases is,the smaller the film thickness is and the closer the pressure distribution is to the Hertz contact pressure distribution.