Answer
Zoben riƙe da karkace ya dogara da tuntuɓar murabba'i-kusurwa tare da bangon tsagi don ƙara ƙarfin ƙarfinsa. Idan tsagi yana da babban radius a ƙasa, ko kuma idan ɓangaren mating yana da babban chamfer, wurin tuntuɓar yana canzawa, yana haifar da hannun ɗan lokaci wanda ke ƙoƙarin 'tasa' zoben (juya shi a ciki). Ana iya ƙididdige raguwar ƙarfin turawa ta hanyar factor $C_f = \ frac{d - (r + c)}{d}$, inda $d$ shine zurfin tsagi, $r$ shine radiyon tsagi, kuma $c$ shine babban sashin da aka riƙe. Idan $C_f$ bai kai 1 ba, zoben zai gaza da wuri ta hanyar fitar da shi daga cikin tsagi. A cikin akwatunan gear sararin samaniya, ana yawan ƙayyadaddun ramuka masu kaifi, kuma ana amfani da zoben shim tsakanin tseren ɗaukar hoto da zoben riƙon don tabbatar da ɗaukar nauyin a kusa da bangon tsagi kamar yadda zai yiwu.
