Novel high-wear-resistance flat shaft

The utility model discloses a novel high-wear-resistance flat shaft which comprises a cylindrical shaft body, a positioning notch is formed in the right end of the cylindrical shaft body in the axis direction, and the depth of the positioning notch is smaller than the radius of the cylindrical shaft body. A connecting flange is integrally arranged at the left end of the cylindrical shaft body, and a plurality of axial through holes are formed in the connecting flange; a first wear-resistant circular ring, a first elastic oil storage sleeve, a second wear-resistant circular ring, a second elastic oil storage sleeve and a third wear-resistant circular ring are sequentially arranged on the outer circular surface of the cylindrical shaft body from left to right in a sleeving manner and are all made of hard alloy materials; the first wear-resistant circular ring, the second wear-resistant circular ring and the third wear-resistant circular ring are welded and fixed with the cylindrical shaft body; the first elasti