Generally, standard gear hobs are only used to machine gears with the same modul, pressureAngle as hobs themselves.
在一般条件下，标准齿轮滚刀只能加工与其模数、压力角相同的同制齿轮。
2
In this paper, a method of employing standard hobs to machine gears with different module and pressureAngle is presented. The relevant checking calculation method is also put forward.
本文提出用标准齿轮滚刀加工与其模数、压力角不同的异制齿轮的方法，并给出了相应的验算方法。
3
The worm and worm among plane within the modulus and pressureAngle, namely the worm gear were equivalent modulus is equal to the end of the worm shaft side modulus and for standard;