Drill bit sliding bearing with textured surface coating

The invention discloses a drill bit sliding bearing with a textured surface coating. The drill bit sliding bearing with the textured surface coating comprises a shaft neck, a bearing, an abrasion-resisting coating and a surface texture. The abrasion-resisting coating is applied to the inner surface of the bearing; the surface texture is arranged on the surface of the abrasion-resisting coating; and the surface texture is in a round shape, and is uniformly distributed along the surface of the abrasion-resisting coating. The drill bit sliding bearing with the textured surface coating has the beneficial effects that abrasion resisting property of the sliding bearing can be improved, and the friction auxiliary lubrication anti-friction property can be improved; and working property of the drill bit sliding bearing can be greatly improved, and the service life can be prolonged. 本发明公开了种表面涂层织构化的钻头滑动轴承，包括轴颈、轴承、耐磨涂层、表面织构，所述轴承内表面涂有耐磨涂层，在耐磨涂层表面设有表面织构，所述表面织构为圆形，并沿耐磨涂层表面均匀分布。本发明的有益效果为：提高滑动轴承耐磨性能以及摩擦副润滑减摩性能，极大地改善钻头滑动轴承的工作性