MOBILE GREASE 28 2KG

Mobilgrease 28 is a high-performance, wide-temperature anti-wear grease designed to combine the unique characteristics of a synthetic polyalphaolefin (PAO) fluid with an organoclay (soap-free) thickener. Its consistency is between that of an NLGI No. 1 and No. 2 grease. It offers exceptional performance over a wide temperature range. The synthetic fluid's wax-free nature, combined with its high viscosity index compared to mineral oils, ensures excellent low-temperature pumpability, very low starting and running torque, and helps reduce operating temperatures in the bearing load zone.

The clay thickener gives Mobilgrease 28 a high dropping point of approximately 300°C, ensuring excellent high-temperature stability. Mobilgrease 28 resists water washout, offers superior load-carrying capacity, reduces frictional drag, and prevents excessive wear. Tests demonstrate that Mobilgrease 28 effectively lubricates bearings at high speeds and high temperatures. Mobilgrease 28 has also demonstrated excellent ability to lubricate heavily loaded sliding mechanisms, such as wing flap screw jacks.

For over 30 years, Mobilgrease 28 has been the benchmark multi-purpose grease for military and aviation applications worldwide.

Mobilgrease 28 is approved by the U.S. Army to MIL-PRF-81322 (General Purpose, Aerospace) and DOD-G-24508A (Navy) for aircraft auxiliary machinery. It bears the U.S. military symbol WTR and NATO code number G-395. It meets the quality standards of DOD-G-24508A, Amendment 4.

Features:

Aerospace greases must withstand high-temperature stresses while providing excellent starting and low torque at low temperatures. To meet these requirements, ExxonMobil formulation engineers selected synthetic hydrocarbon base oils for Mobilgrease 28 because of their low volatility, exceptional thermal and oxidative resistance, and excellent low-temperature performance. Formulators selected a specific thickener chemistry and a proprietary additive combination that maximizes the benefits of synthetic base oils.

Mobilgrease 28 meets the requirements of major military and commercial aviation specifications and has earned an excellent reputation for performance and reliability among users worldwide.

Applications:

Mobilgrease 28 is designed for the lubrication of low- and high-speed plain and rolling bearings, as well as splines, screws, worm gears, and other mechanisms requiring significant friction reduction, low wear, and low friction losses. The recommended operating temperature range is -54°C to 177°C (-65°F to 350°F), with appropriate relubrication intervals.

Mobilgrease 28 is recommended for use in landing gear, control systems and actuators, screw jacks, servomotors, sealed bearing motors, oscillating bearings, and helicopter rotor bearings on military and civil aircraft. Subject to equipment manufacturer approvals, it may also be used on aircraft auxiliary machinery and where specifications MIL-G-81322 (WP), MIL-G-7711A, MIL-G-3545B, and MIL-G-25760A are superseded. Mobilgrease 28 is also recommended for industrial lubrication, particularly for sealed or remanufacturable ball and roller bearings, where extreme temperature conditions, high speeds, or resistance to water washout are important factors. Typical industrial applications include conveyor bearings, small alternator bearings operating at temperatures near 177°C (350°F), high-speed miniature ball bearings, and bearing applications where oscillatory motion and vibration create problems.

Mobilgrease 28 is approved by the U.S. military to MIL-PRF-81322, General Purpose, Aerospace, and DOD-G-24508A (Navy) for Auxiliary Aircraft Machinery. It is a U.S. military symbol WTR grease and NATO code G-395.