This paper explores physical essence of overrunning clutch torsion stiffness,builds torsion stiffness mathematical model and give calculation method of torsion stiffness in roller overrunning clutch.

• 分析了滚柱式超越离合器扭转刚度的物理本质,建立扭转刚度的数学模型,给出了滚柱式超越离合器扭转刚度的计算方法。