Based on the Hertz contact theory and thinwalled ring theory,the isothermal elliptic point contact EHL model of a flexible ball bearing was proposes to analyze the EHL of the contact zone at maximum position of the ball and the inner and outer raceway of the flexible bearing.The curvature,velocity and load were computed,and the effect of load and speed on the lubrication performance of dangerous location was analyzed.The results show that the elastic deformation of flexible bearing causes the increase of the peak pressure and the decrease of film in contact area.With the increase of load,the minimum film thickness and center film thickness are all decreased,and the oil film pressure is increased,indicating that the increase of load has some influence on the bearing capacity of flexible bearing.With the increase of velocity,the minimum film thickness and center film thickness are all increased,indicating that the increase of velocity can improve the lubrication performance of flexible bearing appropriately in a certain range.