Mobilgrease 28 is designed for the lubrication of plain and rolling bearings at low to high speeds, and splines, screws, worm gears, and other mechanisms where high friction reduction, low wear, and low lubricant friction losses are required. The recommended operating temperature range is -55°C to 180°C with appropriate relubrication intervals.
Mobilgrease 28 meets the quality level of military specifications MIL-G-81322 for wide temperature range aviation service and is approved under DOD-G-24508A for shipboard service. Specific military and civil aviation applications include:
Landing wheel assemblies
Control systems, screwjacks, servo devices, actuators, sealed-bearing motors and oscillating bearings
Helicopter rotor bearings on aircraft and on naval shipboard auxiliary machinery
It also can be used where superseded specifications MIL-G-81322 (WP), MIL-G-7711A, MIL-G-3545B, and MIL-G-25760A may be called for
Mobilgrease 28 also is recommended for industrial lubrication, including sealed or repackable ball and roller bearings wherever extreme temperature conditions, high speeds, or water washing resistance are factors. Typical industrial applications include:
Conveyor bearings
Small alternator bearings operating at temperatures near 177°C
High-speed miniature ball bearings, and bearing situations where oscillatory motion, vibration, and fretting create problems
