Ketane ea phetisetso e tšoana le ketane ea phetisetso. Ketane ea phetisetso e nepahetseng e boetse e entsoe ka letoto la li-bering, tse tiisitsoeng ke poleiti ea ketane ka thibelo, 'me kamano ea boemo pakeng tsa e mong le e mong e nepahetse haholo.

Bearing e 'ngoe le e 'ngoe e na le phini le letsoho leo lirolara tsa ketane li potolohang ho lona. Phini le letsoho ka bobeli li feta kalafong ea ho thatafatsa bokaholimo, e leng se lumellang manonyeletso a hinged tlas'a khatello e phahameng, 'me li ka mamella khatello ea mojaro e fetisoang ke lirolara le tšusumetso nakong ea ho kopana. Liketane tsa conveyor tsa matla a fapaneng li na le letoto la li-pitch tse fapaneng tsa ketane: bophahamo ba ketane bo itšetlehile ka litlhoko tsa matla a meno a sprocket le litlhoko tsa ho tiea ha poleiti ea ketane le ketane e akaretsang. Haeba ho hlokahala, e ka matlafatsoa. ​​Lesela le ka feta bophahamo ba ketane bo lekantsoeng, empa ho tlameha ho be le lekhalo menong a gear ho tlosa letsoho.