Kunezinhlobo eziningi ezahlukene zemikhiqizo ye-shaft, ehlanganisa i-straight, cylindrical, spiral, convex, ne-concave shafts. Ukuma nosayizi wabo kuncike ekusetshenzisweni okuqondile kanye nomsebenzi oyifunayo. Imikhiqizo ye-shaft ivamise ukwenziwa ngomshini ngokunemba ukuze kuqinisekiswe ukushelela kwendawo nokunemba kobukhulu, okuyivumela ukuthi isebenze ngokuzinzile ngesivinini esikhulu sokuzungeza noma ngaphansi kwemithwalo ephezulu.