A new type of rack cutter for cutting asymmetric gear is designed

the profile equations are deduced

the force of five typical points are analyzed in the transmission process

and five sets of asymmetric gears with the pressure angles of 20°/20°

25°/20°

30°/20°

35°/20° and 40°/20° are established to quantitatively check the stress distributions at the fillet of the drive side of these teeth

the combination of pressure angle is got in the minimum bending stress is got.