Otu esi ekpebi ma ọ dị mkpa ka edochie mmetụta gị

Iji chọpụta ma enwere ike ịmegharị bearings wepụrụ, mgbe ihichachara, anyị kwesịrị iji nlezianya lelee ebe a na-agba ọsọ, na-atụgharị elu na ụdị ejiji nke oghere na-ebu.Ọ bụrụ na ibu ahụ nwere ntụpọ ndị a, enweghị ike iji ya ọzọ.
1.Ihe ọ bụla nke mgbanaka na-apụ apụ, mgbanaka n'ime, ihe na-atụgharị na oghere nwere mgbape ma ọ bụ notch.
2.There doro anya ọnya ma ọ bụ nchara n'elu raceway elu , na-ebu ọgịrịga , ma ọ bụ Rolling element.
3.The ibu onu nwere observably abrasion ma ọ bụ rivet bụ flabby.
4.The elu nke n'ime dayameta nke cone na elu dayameta nke iko nwere doro anya creep.
5.The doro anya discoloration kpatara okpomọkụ.