by ep | Apr 28, 2026 | Worm and Worm Wheel
Worm Gear Surface Finish — Why Smoothness Decides Service Life Run a fingernail across the worm thread — you can feel the difference between Ra 1.6 hobbed and Ra 0.4 ground. Surface finish is the friction language of every worm gear pair, and one process step can...
by ep | Apr 28, 2026 | Worm and Worm Wheel
Worm Gear Contact Pattern — How Bluing Tests Reveal Quality A 60 to 80 percent contact band centred on the wheel tooth flank — read the bluing test like an X-ray of pair quality. Five minutes of marking compound and a turn of the worm tells you everything about...
by ep | Apr 28, 2026 | Worm and Worm Wheel
Worm Gear Module — Choosing the Right Tooth Size for Torque What module do I need for 500 N·m output? The module is the dimensioning DNA of every worm gear pair — and the answer follows a rigorous reverse calculation that takes about 10 minutes when done correctly....
by ep | Apr 28, 2026 | Worm and Worm Wheel
Worm Gear Center Distance — How to Calculate and Standardise One millimetre of centre distance error costs roughly 30 percent backlash growth and 5 dB more noise. Centre distance is the root-cause variable of every worm gear pair — get it right and most other problems...
by ep | Apr 28, 2026 | Worm and Worm Wheel
Worm Gear Tooth Profile — ZA, ZN, ZI, ZK and How to Choose Why is a worm thread shaped like a screw and not like a spur gear tooth? The answer lies in five letters — ZA, ZN, ZI, ZK, ZC — each defining a different tooth profile that decides the meshing destiny of the...
