1: Izinhlobo zamafutha esiwagcwalisayo (njenge-ExxonMobil ne-Shell) kanye nomthamo wokugcwalisa zinembile. Sidlule kubuchwepheshe obunembile bokukala kanye nokufaka amafutha (ukugwema ukujova amafutha okungalingani kanye nokukhiqizwa kokushisa)
2: Ukwelashwa kokushisa kanye nokuguqulwa kwendawo (ukunquma ukumelana nokuguguleka), ubulukhuni kanye nokujula kwengqimba eqinile
Izinqubo zokwelapha ukushisa (njengokucima i-martensitic kanye ne-bainitic) ziqinisekisa ubulukhuni obufanayo (HRC 61-65) kanye nesendlalelo esiqinile esisebenza kahle kakhulu. Ukuzinza kobukhulu. Ukuze kube nezimo zokusebenza ezishisa kakhulu (njengezilinda zokomisa nama-motor), senze ukwelashwa okukhethekile kokuzinza. Usayizi wama-bearings ngeke ushintshe kakhulu emazingeni okushisa aphezulu, okuvimbela ukubamba.