Official Answer
Answer
A lokuta da yawa, matsuguni ko kayan shaft sun fi zoben da ke riƙe da laushi, ma'ana tsagi zai yi kasawa kafin zobe ya yi shears. Matsakaicin abin da aka yarda da shi $P_g$ dangane da nakasar tsagi shine $P_g = \ frac {D \ cdot d \ cdot \ pi \ cdot σ_y}{S}$, inda $ D $ shine diamita na shaft / bore, $ d$ shine zurfin tsagi, $ σ_y $ shine yawan amfanin ƙasa na tsagi shine $ 2 abu mai aminci. Idan kaya ya wuce $P_g$, bangon tsagi zai 'tasa', yana sa zoben ya karkata kuma a ƙarshe ya fito. Don akwatunan gear sararin samaniya mai ɗaukar nauyi, tsagi yana yawan taurare ko zurfin $d$ yana ƙaruwa. Duk da haka, ƙara $ d$ yana ƙara yawan abubuwan damuwa $ K_t $ don shaft, wanda dole ne a daidaita shi a cikin nazarin gajiya gaba ɗaya.
