Answer
Niba ubugari bwa groove $ W $ ari bunini cyane kuruta ubunini bwimpeta $ T $, igice cyagumishijwe kizaba gifite 'gukinisha amaherezo ya axial.' Munsi yo guhindura imitwaro, ibi biganisha kuri 'inyundo,' aho ibice bigira ingaruka kumpeta. Uku kwipakurura gukomeye kurashobora kunaniza byihuse impeta cyangwa guhindura inkuta za groove. Kubiterane byuzuye, ubugari bwa groove bugomba gutomorwa nka $ T + 0.1mm $ ntarengwa. Niba ikinamico ya axial igomba kuvaho burundu, impeta yo mu bwoko bwa spiral igumana impeta (ihuza imikorere yimpeta nisoko yumuraba) igomba gukoreshwa kugirango itange icyerekezo gihoraho igice cyagumishijwe.