Sobanura akamaro ka 'Pre-setting' mugukora amasoko yumuraba kugirango ukoreshe umunaniro mwinshi.

Mbere yo gushiraho, cyangwa 'gukuraho ibyashizweho,' bikubiyemo guhuza isoko yumuraba hejuru yuburebure bwayo cyangwa umutwaro urenze aho ugenewe gukora. Ubu buryo butera ihinduka ryimiterere ya plastike kumpera yumuraba, ibyo bikaba bitera imbaraga zo guhagarika umutima nyuma yo kurekurwa. Ukurikije igishushanyo cya Haigh, izo mpungenge zisigaye zihindura impagarara $ S_m $ hasi, byongera cyane ubuzima bwumunaniro $ N_f $. Ku masoko ya clutch yimodoka ikozwe mumavuta ya chrome silicon yicyuma (ASTM A401), kubanza gushiraho nintambwe iteganijwe kugirango harebwe ko ibice bishobora kubaho miriyoni 10 zinzitizi zidatsinzwe.