T = (0.5 ~ 0.7) * k * σs * Bi * d / 1000
Lára wọn,
T: iyipo mimu, Nm
k: tightening agbara olùsọdipúpọ, maa 0,12
σs: agbara ohun elo boluti, Mpa
Bi: lewu Cross-lesese agbegbe, mm2
d: Iwọn ila opin, mm

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