Steel Worm Gears
- 0.5 Mod – 2 Mod Steel EN8M (226M44) or equivalent. 3 Mod – 6 Mod Steel EN8 (080M40,080M46) or equivalent.
- All dimensions in mm
- Standard tolerances, unless otherwise stated ±0.25 mm
- 20° pressure angle
- Bore tolerance H7
- Single & double start, right hand
For bronze wormwheels, see here