Spiral bevel gear is a bevel gear with helical teeth. The helical design produces less vibration and noise than conventional straight-cut or spur-cut gear with straight teeth.

A spiral bevel gear set should always be replaced in pairs i.e. both the left-hand and right-hand gears should be replaced together since the gears are manufactured and lapped in pairs.

Helical tooth milling

This is the BAOXIN milling machine is milling.