Worm Gear Gearbox

[Jizvonius]

Originally Posted by Max Lobovsky

Does anybody have any links to information for calculating worm gear strength?

Depending on where you get them, the company will supply that information. However, if they don't, and you know the material and the thickness of the teeth, you can probably get an estimate by calculating from yield stress in shear from the material properties (look these up). The number won't be exact but with a good safety factor (which you need anyway) you should be able to meet your design needs. Use a larger safety factor if you do the calculations yourself though (your number will probably be less accurate).

*make sure you get the correct material properties as different treatments can change properties(case hardening etc.)