Worm gears are the perfect choice when the need is for producing large motor speed Gear reductions in a single step. A single reduction range of 5:1 – 100:1 is considered quite a normal thing for Worm Gears. It can climb up to 127:1 or even more, under special circumstances.
Non-Throated Worm Gear:
Non-throated worm gears, is a helical gear with a straight worm. Tooth contact is a single moving point on the worm drive. both the worm and the driven gear is not throated. The image of a non-throated worm Gear is depicted right.