The common conjugate surface includes tooth surface of gear, working surface of solid cam, helicoidal surfaces existing in spiral burr, worm, chip flute of cutters, and so on.

• 常见的共轭曲面包括齿轮的齿面、空间凸轮的工作面和螺旋面等，其中螺旋面被广泛应用于螺纹、蜗杆、螺杆泵及金属切削刀具等领域。