Wear-resisting bearing

The utility model provides a wear-resisting bearing. The wear-resisting bearing comprises a bearing inner ring, a bearing outer ring, a retainer arranged between the bearing inner ring and the bearing outer ring, and rolling bodies which are mounted in the retainer in an annular array. The wear-resisting bearing is characterized in that each rolling body is a rolling shaft or a rolling bead made of ceramic; an inner ring ceramic layer is arranged at the outer periphery of the bearing inner ring; an outer ring ceramic layer is arranged at the inner periphery of the bearing outer ring. According to the wear-resisting bearing provided by the utility model, each rolling body adopts a ceramic body; meanwhile, the layer of ceramic layer is arranged at each of the inner periphery of the bearing outer ring and the outer periphery of the bearing inner ring, which are contacted with the rolling bodies, so that the wear-resisting performance of the bearing is improved and the service life of the bearing is prolonged.