T = (0.5 ~ 0.7) * k * σs * As * d / 1000 Ntawm lawv, T: nruj torque, Nm k: zawm quab yuam coefficient, feem ntau 0.12 σs: ntsia liaj qhov rooj cov khoom tawm los lub zog, Mpa Raws li: txaus ntshai cheeb tsam, mm2 d: Nominal txoj kab uas hla, mm Hebei Chengyi Engineering Materials Co., Ltd.
Nyeem ntxiv