AeroShell Grease 6
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AeroShell Grease 6 is a general purpose grease composed of a mineral oil thickened with Microgel®, possessing good all-round properties within a limited range. It is inhibited against oxidation and corrosion and has good water resistance and low noise capability.
The useful operating temperature range is –40°C to +121°C.
APPLICATIONS
AeroShell Grease 6 is a general purpose airframe grease for use in antifriction bearings, gearboxes and plain bearings within the temperature range of –40°C to +121°C.
SPECIFICATIONS
| U.S. | Approved MIL-PRF-24139A Meets MIL-G-7711A (Obsolete) |
| British | Approved DEF STAN 91-12 |
| French | Equivalent DCSEA 382/A |
| Russian | -- |
| NATO Code | G-382 |
| Joint Service Designation | XG-271 |
| PROPERTIES | MIL-PRF-24139A | TYPICAL |
| Oil type | Mineral | Mineral |
| Thickener type | -- | Microgel |
| Base oil viscosity mm²/s at 40°C at 100°C |
-- 35 |
-- 5.5 |
| Useful operating temperature range °C | -- | –40 to +121 |
| Drop point °C | 149 min | 260+ |
| Worked penetration at 25°C | 265 to 320 | 300 |
| Unworked penetration at 25°C | -- | 287 |
| Bomb oxidation pressure drop at 99°C 100 hrs lb/in² 500 hrs lb/in² |
10 max 9 |
25 max 15 |
| Oil separation at 100°C, in 30 hrs % m |
-- |
0.7 |
| Water resistance test loss at 38°C % m |
5 max |
2.0 |
| Evaporation loss in 22 hrs at 121°C % m |
-- |
1.3 |
| Mean Hertz Load (kg) | 30 | 35 |
| Antifriction Bearing Performance at 121°C (hrs) |
-- |
2000+ |
| Copper corrosion 24 hrs at 100°C | Must pass | Passes |
| Bearing protection 2 days at 51°C | Must pass |
Passes |
| Colour | -- | Brown |