The automotive standard parts are from amongst certain products designed and manufactured by the relevant manufacturer as per certain general and standardized specifications, criteria and sizes. Usually this group of products include three groups of fasteners such as bolts and nuts, sealed such as washer and seals and bearing of sliding and rolling types. From the most important and complex items of these three groups include sliding bearing. In case of embedding middle and rotating parts between loading axle and bearing during action and function with spherical or ball, roller, barrel, and/or cone shapes, then the friction shall be significantly decreased, as the friction surface is changed from sliding type with high contact surface into rolling type with less involvement surface. It should be mentioned that the performance environment and loading conditions are directly related to the shape of bearing rotating items and choosing any of the middle items highly affect its performance and effective lifetime.