Answer
A cikin manyan juzu'i masu jujjuyawa, ƙarfin centrifugal yana aiki akan yawan zoben riƙewa, yana ƙoƙarin faɗaɗa shi radially. Idan ƙarfin centrifugal ya zarce maƙarƙashiya ko radial riƙon zoben a ƙasan tsagi, zoben zai ɗaga daga cikin tsagi, wanda zai haifar da gazawar taro mai bala'i. Matsakaicin RPM ($N_{max}$) ana ƙididdige shi ta hanyar daidaita ƙarfin centrifugal akan ƙarfin roƙon zobe: $N_{max} = _x000c_rac{70.4}{D_m} imes _x000c_rac{E imes I imes ext{Grip}}{_ho_m3 A imes ext{Grip}}{_ho_m3 A imes $_x000d_ho$ shine yawan kayan abu kuma $I$ shine lokacin rashin aiki. Don manyan RPMs, injiniyoyi sun ƙididdige fasalin 'kulle kai' inda wani shafi akan jujjuyawar ciki ya kulle tare da ramin juyawa na waje, da injiniyanci yana hana zoben faɗaɗawa.
