Gutandukana neza birashobora kuba hejuru ya 909 ~ 8%, naho ibice ≥ 0.m2m birashobora gutandukana.Ifata ibice bitagira shitingi hamwe na anhydrous hagati, byoroshye kubungabunga.
Imiterere yoroheje nuburemere bworoshye.
Igice cyingenzi cyibikoresho bishya byohereza ni shaft yateye imbere igabanya kugabanya.Hatabayeho guhuza, biroroshye gushiraho no guhuza.Umurongo wumurongo nubwoko bwihuse bwo kwishyiriraho, byoroshye gusimbuza.
Umwanya wa axial ya screw urashobora guhindurwa, bikaba byoroshye guhindura icyuho cyumutekano hagati yumurizo wacyo nurukuta.