... approximately 1/8 that of steel,the same part UHMWPE has lower price than steel,need no maintain, ... to machine,conventionally sawed,milled,planed and drilled,so UHMWPE has a competitive price. 3. Abrasion resistanceUHMW-PE ... commonly used as gears,sprokets,rollers, mixer paddles, pump impeller,bearing,chain and belt guides,wear strips etc. ... the life of screw and transportation belt. UHMWPE Pump parts