Muna ɗaukar madaidaicin tsarin gyare-gyaren babban sikelin samar da alumina yumbu shaft, yumbu hali.Alumina yumbu shaft, yumbu hali tare da zafi da sanyi juriya, karamin ƙarfi elasticity, matsa lamba juriya, haske nauyi, kananan gogayya coefficient da sauransu a kan wasu abũbuwan amfãni, yadu amfani a high lamba motor.