Lisebelisoa tsa bolo tse etselitsoeng ho mamella meroalo e boima nakong ea ts'ebetso e phahameng, 'me li entsoe ka li-ferrules tse bopehileng joaloka washer tse nang le li-grooves tsa bolo. Hobane lesale le sebopehong sa mosamo, libering tsa libolo li arotsoe ka mefuta e 'meli: mofuta o bataletseng oa mosamo le mofuta oa selika-likoe o chitja. Ho phaella moo, mofuta ona oa ho jara o ka jara mojaro oa axial, empa o sitoa ho jara mojaro oa radial.
