Mamiriro emuchina wekutungamirira Muchina wekutungamirira (steering machine) zvinoreva magadzirirwo akaiswa kuitira kushandura mafambiro evhiri. Iyo ine zvikamu zvitatu, zvinoti, dhiraivha, mashandiro emagetsi uye gumbo rekutungamirira.
Iyo dhizaini inoumbwa neiyo huru yekudzikisa giya, pinion giya, yekubatsira kuderedza giya, kushandura forogo, yekubatanidza tsvimbo, nezvimwe. Iyo huru yekudzikisa giya chikamu cheiyo synthesis giya nechidhiraivho cheruoko, chinotyaira giya guru rekudzikisa kuti ritenderere, uye pinion inotyaira giya rekubatsira rekudzikisa kutenderera kuburikidza nekurongedzerwa kwekufambisa, uye ipapo chinja nzira yekufambisa.