Polyoxymethylene pom-c bantalan roller acetal katrol bantalan uga dijenengi Delrin, asetal, Polyoxymethylene pom-c bantalan roller acetal katrol bantalan punika jenis plastik engineering karo mechanical apik. POM bebarengan karo UHMW PE, Nylon, PTFE dikenal minangka papat plastik tahan abrasion. Wis meh rigidity padha logam, supaya iku bahan panggantos becik saka tembaga, seng, baja, aluminium lan bahan logam liyane.