Material-saving wear-resistant gear

The material-saving wear-resistant gear comprises a center ring, two ends of the center ring are respectively sleeved with two lantern rings, the lantern rings are detachably connected with the center ring, teeth are arranged on the outer side walls of the lantern rings in an array mode, clamping blocks are arranged on the outer side wall of the center ring and the inner hole wall of the center ring, and the clamping blocks are arranged on the outer side wall of the center ring and the inner hole wall of the center ring. An oil storage groove is formed in a ring body of the center ring, an oil guide groove is formed in the inner wall of the lantern ring, the oil storage groove is communicated with the oil guide groove, and the oil guide groove is communicated with each tooth seam in the lantern ring; the gear ring has the advantages that the center ring and the two lantern rings with the teeth on the two sides are spliced, so that only the lantern rings on the two sides need to be replaced when the teeth are