ANSIB92.1-1970SAE花键标准ANSIB92.1-1970SAE花键标准INVOLUTESPLINES渐开线花键FormCircleisthecirclewhichdefinesthedeepestpointsofinvoluteformcontrolofthetoothprofile.Thiscirclealongwiththetoothtipcircle(orstartofchamfercircle)determinesthelimitsoftoothprofilerequiringcontrol.Itislocatednearthemajorcircleontheinternalsplineandneartheminorcircleontheexternalspline.渐开线终止圆：渐开线终...
