Taper support rib: rib conicaltaper at the circumferential rib support, in between the CAM groove, Roller CAM with the circumference of linear contact.
锥形肋位于锥度支撑肋的圆周上，在凸轮凹槽之间，与凸轮滚子的圆周线性接触。
2
Taper support Rib : Rib conicaltaper at the circumferential rib support, in between the cam groove, Roller Cam with the circumference of linear contact.
锥度支撑肋：锥形肋位于锥度支撑肋的圆周上，在凸轮凹槽之间，与凸轮滚子的圆周线性接触。
3
There is no common normal in the conical involute gear and the fixed chordal tooth thickness can not be measured accurately because of the coexistence of helix angle and taper.