Effect of texturing region on friction properties of journal bearings at different rotational speeds

Abstract

Abstract The effect of texturing area on the friction properties of partially textured bearing at different rotational speeds was investigated theoretically. Four texturing configurations are limited on the bearing surface from the oil film fracture zone of the smooth bearing (200º to 360º) in the rotational direction with different eccentricity ratios. The results show that the friction coefficient of the partially textured bearing can be reduced compared with the smooth bearing. The friction coefficient decreases greater with the increasing texture depth at the fixed rotational speed. When the texturing configuration starts from the oil film fracture zone at the eccentricity ratio of 0.4 or 0.6, the partially textured bearings perform better at different speeds.