Senasesebelisoa sa libokorSete ea lisebelisoa tsa lebili la seboko tse neng li sebelisoa ka sekepeng. Thepa 34CrNiMo6 bakeng sa moqomo oa seboko, kalafo ea mocheso: carburization 58-62HRC. Thepa ea lisebelisoa tsa seboko CuSn12Pb1 Tin Bronze. Lisebelisoa tsa lebili la seboko, tse tsejoang hape e le lisebelisoa tsa seboko, ke mofuta oa sistimi ea lisebelisoa tse sebelisoang hangata ka likepeng. E entsoe ka seboko se silindara (se tsejoang hape e le screw) le lebili la seboko, e leng gear e silindara e nang le meno a khaotsoeng ka mokhoa oa helical. Lisebelisoa tsa seboko li kopana le seboko, ho etsa phetiso e boreleli le e khutsitseng ea matla ho tloha moqomong oa ho kenya ho ea moqomong oa tlhahiso.
Likepeng, li-gear tsa lebili la worm hangata li sebelisoa ho fokotsa lebelo la propeller shaft. Li-gear tsa worm li fokotsa lebelo la input shaft, eo hangata e hokahaneng le enjene, 'me li fetisetsa matla ao.