the occurence of fretting wear on one or more surfaces of a component that is subjected to bulk cyclic stresses such that fatigue life is significantly altered (see: fretting wear), fretingkulumise ilmnemine komponendi ühel või enamal pinnal, allutades neid täispingetsüklile selliselt, et väsimusiga muutub märgatavalt (vt fretingkulumine)