Abstract: In order to study the effect of parameters of the surface texture on the hydrodynamic lubrication characteristics of radial bearing, the analytic model is constructed based on Reynolds equation. Cuboid-shaped surface textures with different distribution location and geometrical parameter are designed. Reynolds equation is solved by using finite difference method (FDM) under the condition of Reynolds boundary. The effect of texture parameters on the static characteristics of the bearings was analyzed, involved the eccentricity ratio, the attitude angle, the maximum film pressure, the minimum film thickness, the friction force and the side leakage. The results of numerical calculation show that the surface texture has a significant influence on the distribution of film pressure. Especially when the textures are arranged in the downgrade area of the pressure and the neighboring area of the maximum pressure, the distributions of the film pressure have prominent distinction between smooth and textured bearings. Generally, the pressure peak can be increased when the textures are arranged on the upstream surface of the bearing. Moreover, the location of the textures arranged on the bearing surface has a distinguishing influence on the other static characteristics of the bearings excepting the film pressure.