Official Answer
Answer
Yayin da madaidaicin kusurwa mai kaifi a cikin tsagi zai ƙara girman wurin tuntuɓar, yana haifar da maɗaukakin damuwa $ K_t$, wanda zai iya haifar da gazawar shaft/rasa gajiya. Daidaitaccen aikin shine don ƙyale ƙaramin radius $ R$ a ƙasan tsagi. Koyaya, zoben yana da 'radius na halitta' ko 'chamfer' a gefunansa. Idan radius $ R$ ya fi girma fiye da radius na gefen zobe, zoben ba zai zauna cikakke a kasan tsagi ba, wanda zai haifar da tasirin 'wedging' wanda zai iya tilasta zobe a ƙarƙashin nauyin axial. Dokokin ƙira shine $R_{groove} \leq 0.1 imes ext{Groove Depth}$ don tabbatar da wurin zama mai kyau.
