Tooth contact analysis of toroidal involute worm mating with involute helical gear

With the help of high precision diamond dressing gears, the TI worm can be envelope-finished, and the drive of TI worm and an involute helical gear can be formed and applied actually. For this type worm-gear set, mathematical model is developed, basic equations are derived, and tooth contact analysis is simulated by calculation examples. It is made clear that the worm-gear set has many advantages.