This paper presents the static and dynamic characteristics of hydrodynamic journal bearing in the linear generator engine to solve tribological problems considering constant viscosity of the lubrication using the finite element method. The sliding surfaces between connecting rod and bush may be among the most complex tribological phenomenon in the linear generator engine and could become even more severe with increasing engine power. The friction between the connecting rod and bush significantly contributes to the power losses of the engine. On the basis of the finite element analysis theory, the Reynolds equation for static and dynamic loads is derived. The results represent the bearing characteristics, namely the variation of pressure along the circumference, the effect of load-carrying capacity, frictional losses, and stiffness and damping coefficient with the eccentricity ratio. This paper also presents the variation of eccentricity ratio with the Sommerfeld number. Results from the numerical analysis...