Mofuta o joalo oa lisebelisoa tsa kahare tsa helical hangata o hloka phetoho ea profil mme ho nepahala ke ISO6-7, pele ho thomello e 'ngoe le e' ngoe, re tla fana ka litlaleho tsena ho moreki ho lekola lintlha tsa lisebelisoa tsa helical ring ho etsa bonnete ba hore tsohle li utloisisoa hantle ebile li loketse ho tsamaisoa.

1) Ho taka li-bubble

2)Dtlaleho ea imension

3)Hja tlaleho ea pheko pele ho phekoloa mocheso

4)Hja tlaleho ya pheko ka mora ho phekolwa mocheso

5)Mtlaleho ea lintho tse bonahalang

6)Atlaleho e nepahetseng

7)Plitšoantšo le livideo tsohle tsa liteko joalo ka runout, Cylindricity jj

8) Litlaleho tse ling tsa tlhahlobo ho latela tlhoko ea bareki joalo ka tlaleho ea ho bona liphoso