AeroShell Grease 14 is a calcium soap-thickened mineral oil-based helicopter grease designed for main and tail rotor bearings, offering superior anti-fret, water resistance, and corrosion protection in extreme operating conditions.
Mineral helicopter grease with anti-fret and corrosion-inhibiting properties
Mineral oil thickened with calcium soap
Approved by all major helicopter manufacturers
Outstanding resistance to fretting corrosion and moisture
Designed for use in helicopter main and tail rotor bearings, splines, and similar components
Excellent water resistance and oxidation stability
Operates effectively from –54°C to +75°C
Approved under MIL-G-25537C, DEF STAN 91-51, and NATO Code G-366
Global Product Code: 001A0914
AeroShell Grease 14 is a calcium soap-thickened mineral grease developed for helicopter multi-purpose applications, particularly suited for main and tail rotor bearings, splines, and gear interfaces. It is widely approved across the rotorcraft industry and delivers enhanced protection against fretting and moisture corrosion.
| Property | Typical Value | Method |
|---|---|---|
| Oil Type | Mineral | — |
| Thickener Type | Calcium soap | — |
| Colour | Tan | — |
| Base Oil Viscosity @40°C | 13.7 mm²/s | ASTM D445 |
| Base Oil Viscosity @100°C | 3.1 mm²/s | ASTM D445 |
| Operating Temperature Range | –54°C to +75°C | — |
| Drop Point | 148°C | ASTM D2265 |
| Worked Penetration @25°C | 284 | ASTM D217 |
| Unworked Penetration @25°C | 277 | ASTM D217 |
| Oxidation Stability (100h @99°C) | 20 kPa | ASTM D942 |
| Oxidation Stability (400h @99°C) | 93 kPa | ASTM D942 |
| Oil Separation (30h @1 |