According the machining principle of spiral bevel gear

the pitch line equation of spiral bevel gear is calculated and deduced

using the curve of the pitch equation for the tooth trace to ensure the accuracy of tooth profile along tooth direction width

the parametric modeling method of the spiral bevel gear

assembly

movement analysis and global interference detection are introduced in the environment of Pro/E

the three-dimensional modeling efficiency of the spiral bevel gear which has different parameters is improved

the accurate three-dimensional modeling of the spiral bevel gear for CNC machining center is provided.