Agma - 21801 Pdf
AGMA 218.01 refers to a standard titled "Rating the Pitting Resistance and Bending Strength of Generated Straight Bevel, Zerol Bevel and Spiral Bevel Gear Teeth." It was a significant standard established by the American Gear Manufacturers Association (AGMA)
3. Comparison with AGMA 218.02 and ISO 8579-1
| Feature | AGMA 218.01 | AGMA 218.02 / ISO 8579-1 |
|---------|-------------|----------------------------|
| Sound metric | Sound pressure level | Sound power level (LW) |
| Frequency range | A-weighting only | 1/3-octave bands optional |
| Test environment | Hemispherical or free field | Reverberation room allowed |
| Gear types | Spur/helical enclosed | Includes bevel, planetary | agma 21801 pdf
Reporting and Documentation
1. Accuracy Grades (Qualities)
The standard defines 12 accuracy grades (AGMA Q3 through Q15). For example: AGMA 218
- Helical gear in a 10 kW industrial gearbox → Grade A8 or A10.
Pitting Resistance: Evaluating the gear's ability to resist surface contact fatigue. Helical gear in a 10 kW industrial gearbox