AGMA Viscosity Classification
For industrial gear oils
Description
The American Gear Manufacturing Association (AGMA) includes in their standard 9005-D94 the kinematic viscosity and performance requirements for closed industrial gearboxes. The viscosity ranges for AGMA lubricant numbers correspond with those of ASTM D2422 and ISO 3448.
Viscosity Table – Measurement data
Industrial gear oils - AGMA 9005
| AGMA Lubricant No. | Min. Viscosity at 40 °C [mm²/s] | Max. Viscosity at 40 °C [mm²/s] | Comparable ISO Viscosity Grade |
|---|---|---|---|
| 0 | 28.8 | 35.2 | 32 |
| 1 | 41.4 | 50.6 | 46 |
| 2, 2 EP | 61.2 | 74.8 | 68 |
| 3, 3 EP | 90.0 | 110 | 100 |
| 4, 4 EP | 135 | 165 | 150 |
| 5, 5 EP | 198 | 242 | 220 |
| 6, 6 EP | 288 | 352 | 320 |
| 7 C, 7 EP | 414 | 506 | 460 |
| 8 C, 8 EP | 612 | 748 | 680 |
| 8A C, 8 EP | 900 | 1100 | 1000 |
Reference
AGMA 9005-D94
Metainformation
| Reference | AGMA 9005-D94 |
|---|---|
| Kin. vis. | yes |
| Dyn. vis. | no |
| Density | no |
| Multiple temperatures | no |
| Related | Kinematic viscosity, viscosity, industrial gear oil, lubricant, lube oil, AGMA, viscosity grade, closed gearbox |