Official Answer
Answer
Ana ƙididdige ƙarfin matsawa akan zobe shear $ P_r $ ta amfani da dabara $P_r = \ frac {D \ cdot T \ cdot \ pi \ cdot S_s}{S_f}$, inda $ D $ shine shaft / diamita, $ T $ shine kauri na zobe, $ S_s $ shine ƙarfin ƙarfi na kayan (kimanin $ $ _) ƙarfin ƙarfi na kayan (kimanin $ _). (yawanci 3). Wannan lissafin yana ɗauka cewa tsagi yana da zurfi sosai kuma kayan ƙugiya yana da ƙarfi don hana zobe daga tasa. Idan kayan tsagi ya ba da albarkatu kafin zobe ya yi shears, ƙarfin yana iyakance ta hanyar dabarar tsagi $P_g = \ frac {D \ cdot d \ cdot \ pi \ cdot S_y}{S_f}$, inda $d$ shine zurfin tsagi kuma $ S_y $ shine ƙarfin yawan amfanin ƙasa.
