Inzoka yinyo, izwi kandi nka screw yinyo, nigikoresho gikoreshwa mugukwirakwiza ingendo hagati yimigozi ibiri idahuye. Igizwe n'inkoni ya silindrike ifite umuzenguruko cyangwa umugozi hejuru yacyo. Uwitekaibikoresho by'inyokurundi ruhande, ni ubwoko bwibikoresho bisa na screw, hamwe nimpande zinyo zihuza hamwe na spiral spiral ya shaft yinyo kugirango yimure imbaraga

Iyo uruziga rwinzoka ruzunguruka, umuzenguruko uzunguruka wimura ibikoresho byinyo, ari nako byimura imashini zahujwe. Ubu buryo butanga urwego rwo hejuru rwohereza umuriro, bigatuma biba byiza kubikorwa bisaba imbaraga zikomeye kandi buhoro, nko mumashini yubuhinzi.

Kimwe mu byiza byo gukoresha inyo ninzoka mu bikoresho byubuhinzi nubushobozi bwabo bwo kugabanya urusaku no kunyeganyega. Ibi ni ukubera igishushanyo cyihariye cyemerera gukora neza ndetse no kugenda kwimashini. Ibi bivamo kwambara no kurira kuri mashini, kongera igihe cyayo no kugabanya amafaranga yo kubungabunga.

Iyindi nyungu nubushobozi bwabo bwo kongera amashanyarazi neza. Inguni ya spiral groove kuri shaft yinyo igena igipimo cyibikoresho, bivuze ko imashini ishobora kuba yarakozwe muburyo bwihariye kugirango yemere umuvuduko runaka cyangwa ibisohoka. Uku kongera imikorere bivamo kuzamura ubukungu bwa peteroli no kugabanya gukoresha ingufu, amaherezo biganisha ku kuzigama kwinshi.

Mu gusoza, ikoreshwa ryinzoka ninzoka mu bikoresho byubuhinzi bigira uruhare runini mumashini yubuhinzi akora neza kandi neza. Igishushanyo cyabo kidasanzwe gituma imikorere ituje kandi yoroshye mugihe itanga ingufu zogukwirakwiza amashanyarazi, amaherezo biganisha ku nganda zubuhinzi zirambye kandi zunguka.