Static and dynamic characteristics of journal bearings with uniform square dimples on the whole bearing inner surface were experimentally investigated. A test rig was developed to measure the static and dynamic characteristics of journal bearings. Three kinds of journal bearings were used for the test bearings which include two journal bearings textured with square dimples by the electrical discharge machining and a plain journal bearing without dimples. The eccentricity ratio, attitude angle and the stiffness and damping coefficients were measured for a wide range of Sommerfeld numbers and were compared with the corresponding results of a plain bearing. The experimental results showed that the textured journal bearings have larger eccentricity ratio and smaller attitude angle than a plain bearing and reduce the magnitude of the cross-coupled stiffness coefficients. The quantitative effects of texturing on the eccentricity ratio, attitude angle and cross-coupled stiffness coefficients become more marked for higher Reynolds number and larger number of dimples under the constant dimple area. This is attributable to the fact that the energy loss at the edge of dimples increases with Reynolds number and total edge length.