The present paper refers to our study on reducing friction on reciprocating sliding surfaces by surface texturing. The purpose of this study is to develop optimal design guidelines for surface texturing by clarifying its effect on the lubrication characteristics of reciprocating sliding surfaces under various operating conditions. Numerical analysis has been performed by solving the Reynolds equation using the finite element method to evaluate the effect of surface texturing．The major results are that; 1) The reciprocating friction characteristics of a barrel face slider with groove-shaped surface texturing can be organized by the bearing modulus consisting of the viscosity coefficient of the lubricant, average sliding speed, and surface pressure.; 2) Friction loss is reduced by applying groove-shaped surface texturing with appropriate depth and arrangement according to the value of bearing modulus, as compared with the case of no texturing.
