Hangata ho na le mefuta e meraro ea li-bearings tsa PDC (polycrystalline diamond compact): thrust bearing, radial bear, le motsoako oa ho kopanya. Ho jara PDC hoa hlokahala bakeng sa tikoloho e thata, e sebelisoang ho li-drill tsa turbo, li-motors tsa seretse, lipompo tsa motlakase tse kenang ka tlas'a metsi, RSS (rotary sterable system), ts'ebetso ea masimo a oli, jj.
