AeroShell Grease 5
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AeroShell Grease 5 is a high temperature grease composed of a mineral oil thickened with Microgel®, possessing good load-carrying ability. It is inhibited against oxidation and corrosion and has excellent resistance to water. The useful operating temperature range is –23°C to +177°C.
APPLICATIONS
AeroShell Grease 5 is particularly effective for use as a wheel bearing grease, especially when landing speeds are high, and is suitable for the lubrication of aircraft and engine accessories operating at high speeds and at relatively high temperatures, e.g. magnetos, generators and starters. For the lubrication of rolling bearings which are required to start at temperatures as low as –23°C an adequate period should be allowed for the grease to channel.
SPECIFICATIONS
| U.S. | Meets MIL -G- 3545C (Obsolete) |
| British | Meets DTD.878A (Obsolete) |
| French | Equivalent DCSEA 359/A |
| Russian | -- |
| NATO Code | G-359 (Obsolete) |
| Joint Service Designation | XG-277 (Obsolete) |
| PROPERTIES | MIL-G-3545C | TYPICAL |
| Oil type | -- | Mineral |
| Thickener type | -- | Microgel |
| Base oil viscosity mm²/s at 40°C at 100°C |
-- 500 to 525 |
-- 32 |
| Useful operating temperature range °C | -- | –23 to +177 |
| Drop point °C | 177 min | 260+ |
| Worked penetration at 25°C | 250 to 300 | 284 |
| Unworked penetration at 25°C | -- | 281 |
| Bomb oxidation pressure drop at 99°C 100 hrs lb/in² 500 hrs lb/in² |
10 max 6 |
25 max 15 |
| Oil separation at 100°C, in 30 hrs % m |
5 max |
0.5 |
| Water resistance test loss at 41°C % m |
20 max |
0.5 |
| Evaporation loss in 22 hrs at 149°C % m |
-- |
1.0 |
| Mean Hertz Load (kg) | -- | 37 |
| Copper corrosion 24 hrs at 100°C | Must pass | Passes |
| Bearing protection 2 days at 51°C |
Must pass |
Passes |
| Anti-friction bearing performance at 149°C hrs |
-- |
600+ |
| Colour | -- | Amber |