304 igwe anaghị agba nchara enweghị nkebi ọkpọkọ iyi onu bụ nnọọ nkịtị, ọtụtụ ihe kpatara nke a onu nwere physico-chemical na n'ibu akụkụ, tumadi site abrasive yi, nrapado yi (glued), ike ọgwụgwụ eyi (pitting) corrosion na eyi.

304 igwe anaghị agba nchara ọkpọkọ na-eyi ihe fọrọ nke nta ka ọ bụrụ ihe niile nwere mmekọrịta, ma n'okpuru ọnọdụ dị iche iche nke iyi usoro, iji melite eyi iguzogide ihe onwunwe nwere dị iche iche chọrọ. Ebe ọ bụ na esemokwu ihe na ule ọnọdụ dịgasị iche iche, ndị dị wear index na-anọchi anya ojiji ma ọ bụ eyi ule igwe nwalere n'okpuru kpọmkwem ọnọdụ mbelata ihe tụrụ (g / cm2), ma ọ bụ ya inverse, kwuru na-eyi esemokwu na-eyi a nha nha ule.

Industrial n'etiti mkpịsị aka agba mkpuchi ka n'ibu edinam nke esemokwu iguzogide. N'ezie na-egosipụta ike siri ike, nkwụsịtụ na njikọ nke mmetụta jikọtara ọnụ nke mkpuchi. N'okpuru otu ọnọdụ ahụ, nguzogide abrasion dị elu nke ihe ígwè, n'ihi na enwere mmetụta viscoelastic, nke ike na-echekwa ume, na-amịkọrọ ma tọhapụ ya. Mkpebi nke nguzogide abrasion nke mkpuchi na-abụkarị ngwaọrụ na-eyi. Na a ụfọdụ ibu, mkpuchi roba wheel mgbe a predetermined ọnụ ọgụgụ nke revolutions nke egweri, mkpuchi arọ ọnwụ kpebisiri ike na gram.