Mobilgrease 28
| Specifications and Approvals |
| For use in aviation grease applications per Aircraft Maintenance Manual (AMM) including: |
| Boeing |
Airbus |
DOD-G-24508A (Navy) |
| USAF - MIL-PRF-24508B |
NATO - G-395 |
USAF - MIL-PRF-81322G |
| Trigger Lubrication MIL-G-21164D |
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|
Mobilgrease 28 is a supreme performance, wide-temperature, antiwear grease designed to combine the unique features of a polyalphaolefin (PAO) synthetic base fluid with an organo-clay (non-soap) thickener.
- Its consistency is between an NLGI No. 1 and No. 2 grease.
- It offers outstanding performance over a wide temperature range.
- Excellent low temperature pumpability
- Very low starting and running torque
- Helps reduce operating temperatures in the load zone of rolling element bearings.
- High dropping point value of around 300ºC
- Effectively lubricates rolling element bearings under conditions of high speeds and temperatures
- Excellent ability to lubricate heavily loaded sliding mechanisms, such as wing flap screw jack
For more than 30 years, Mobil grease 28 has been the multi-purpose grease of choice for military and related aviation applications, worldwide.
| Property |
Value |
| Grade |
NLGI 1.5 |
| Color, Visual |
Dark Red |
| Texture, VISUAL |
Smooth, buttery |
| Thickener, wt%, AMS 1698 |
Clay |
| Features |
Advantages and Benefits |
| High viscosity index (VI) synthetic base stock with no wax content |
Allows wide operating temperature range - outstanding high and low temperature performance
Provides thicker fluid films protecting against wear of equipment parts operating at high temperature
Causes low resistance during start-up at very low temperatures |
| Excellent protection against wear and corrosion |
Superb bearing protection and helps extend bearing life and reduce bearing replacement costs |
| Extreme-pressure protection characteristics |
Avoids excessive wear, even under shock load |
| High thermal/oxidative stability |
Long relubrication intervals |
| High resistance to water washout |
Maintains excellent grease performance in adverse weather and other water-exposure conditions |
Mobilgrease 28 is recommended for use in landing wheel assemblies, control systems and actuators, screw jacks, servo devices, sealed-bearing motors, oscillating bearings, and helicopter rotor bearings on military and civil aircraft. Subject to equipment manufacturer approvals, it can also be used on naval shipboard auxiliary machinery and where superseded specifications MIL-G-21164D, MIL-G-81322 (WP), MIL-G-7711A, MIL-G-3545B, and MIL-G-25760A are recommended.
