AeroShell Grease 7
Protect your aviation components with AeroShell Grease 7, offering high load capacity, corrosion and oxidation resistance, and a wide operating temperature range of -73掳C to +121掳C.
Features and benefits
Multi-purpose airframe grease
Suitable for a wide range of aviation applications, offering reliable performance across diverse conditions.
Excellent low-temperature performance
Operates effectively in extreme cold, with a temperature range from -73掳C to +121掳C.
Corrosion & oxidation protection
Inhibited against oxidation and corrosion, safeguarding critical components from rust and wear.
High load-carrying capacity
Engineered to handle high-pressure applications, ensuring robust protection for gears and bearings.
Water washout resistance
Resists moisture, preventing washout and maintaining consistent lubrication in wet conditions.
Specifications & approvals
| Country / OEM |
Specification |
|---|---|
| United States |
MIL-PRF-23827C (Type II) |
| COMAC |
QPL-CMS-OL-302 |
| Rolls-Royce |
OMat401A |
The TDS and MSDS are in English, but you can find these documents for other countries in the .
Applications
AeroShell Grease 7 satisfies nearly all the airframe grease requirements of turbine engine aircraft and those of piston engine aircraft provided that seal incompatibility does not occur. Most civil aircraft manufacturers approve AeroShell Grease 7 as a general-purpose synthetic grease either by brand name or by specification.
It is recommended for lubricating highly loaded gears, actuator screw mechanisms, etc., also for instrument and general airframe lubrication within the temperature range of 鈥�73掳C to +121掳C.
Health, Safety and Environment
Health and Safety
- This product is unlikely to present any significant health or safety hazard when properly used in the recommended application and good standards of personal hygiene are maintained.
- Avoid contact with skin. Use impervious gloves with used oil. After skin contact, wash immediately with soap and water.
- Guidance on Health and Safety is available on the appropriate Safety Data Sheet, which can be obtained from .
Protect the Environment
- Take used lubricant to an authorised collection point. Do not discharge into drains, soil or water.
Additional information
Advice
- Advice on applications not covered here may be obtained from your Shell representative.
Technical Talk
Greases
Get to grips with the basics of aircraft greases by reading this handy article, discussing how greases are created and their best applications for aviation engines.
Typical Physical Characteristics
| Properties | Method | MIL-PRF-23827C Type II | Typical |
|---|---|---|---|
| Oil type | - | Synthetic | Synthetic ester |
| Thickener type | - | Clay | Clay |
| Colour | - | - | Beige |
| Base Oil Viscosity @40掳C mm虏/s | ASTM D445 | - | 11.2 |
| Useful operating temperature range 掳C | - | - | -73 to +121 |
| Drop point 掳C | ASTM D2265 | 165 min | Min 300 |
| Worked penetration @25掳C | ASTM D217 | 270 to 310 | 285 |
| Penetration unworked @25掳C | ASTM D217 | 200 min | 282 |
| Worked Stability 100,000 strokes, 0.1mm | FED-STD-791-313 | 270 - 375 | 289 |
| Oxidation Stability 100h @ 99掳C, kPa | ASTM D942 | 70.00 max | 17 |
| Oil separation 30 hrs @100掳C %m | ASTM D6184 | 5 max | 2.5 |
| Water Washout @38掳C %m | ASTM D1264 | 20 max | 6 |
| Evaporation Loss 22h @ 100掳C, %m | ASTM D2595 | 2 max | 1.3 |
| Four Ball EP Load Wear Index kgf | ASTM D2596 | 30 min | 40 |
| Low Temperature Torque - @-73掳C Nm Start | ASTM D1478 | 1.00 max | 0.23 |
| Low Temperature Torque - @-73掳C Nm Run | ASTM D1478 | 0.10 max | 0.03 |
| Copper Corrosion 24h @ 100掳C | ASTM D4048 | 1b max | Passes |
| Particle Count part/ml | FED-STD-791 M.3005 | Must pass | Passes |
| Rust Prevention 52掳C, 48h | ASTM D1743 | Must pass | Passes |
These characteristics are typical of current production. Whilst future production will conform to Shell's specification, variations in these characteristics may occur.
