Li-rolara tse nang le li-tapered li na le li-bearings tse arohaneng, 'me mehele e ka hare le e ka ntle ea li-bearings e na le litsela tsa peiso.Mofuta ona oa ho jara o arotsoe ka mefuta e fapaneng ea meralo joalo ka mola o le mong, mola o habeli le mela e mene e nang le li-roller ho latela palo ea mela e kentsoeng.