Official Answer
Answer
Ana ƙididdige ƙarfin ƙwanƙwasa axial dangane da juzu'in zobe kamar $ P_r = \ frac {D t \ pi S_s}{K}$ inda $ D$ shine madaidaicin shaft / diamita, $ t $ shine kauri na zobe, $ S_s $ shine ƙarfin ƙarfi na kayan zobe, kuma $ K $ shine yanayin aminci (yawanci 3). Don yawancin karafa na bazara, $S_s \kimanin 0.6 \ times S_{ut}$ (ƙarfin ƙarfi na ƙarshe). Yana da mahimmanci a kwatanta $P_r$ (ƙarar zobe) tare da $P_g$ (yawan yawan amfanin ƙasa). Ƙananan ƙima yana ƙayyade iyakar tsarin. A cikin aikace-aikace masu tasiri, $ K$ ya kamata a ƙara zuwa 5 ko mafi girma don asusu don ɗaukar nauyi mai ƙarfi da yuwuwar gajiya a wurin tsagi.
