Official Answer
Answer
Gefen gefe shine nisan axial daga tsagi zuwa ƙarshen shaft ko gidaje. Idan wannan gefen ya yi ƙanƙanta, kayan da ke tsakanin tsagi da ƙarshen ɓangaren zai yi kasa a cikin shear (bushewa). Za'a iya ƙididdige ƙimar gefen da ake buƙata $Y$ kamar $Y = \ frac{3 · P · S_f}{π · D · σ_y}$, inda $P$ shine nauyin turawa. Babban ƙa'idar babban yatsa shine $Y ≥ 3d$, inda $d$ shine zurfin tsagi. Don kayan karyewa kamar simintin ƙarfe, ya kamata a ƙara wannan zuwa $5d$. Idan sarari yana iyakance, za'a iya ƙarfafa gefen gefen gefe tare da abin wuya, amma wannan yana ƙara rikitarwa da farashi ga taron.
