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Mobilgrease 28

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.

This product's consistency is between an NLGI No. 1 and No. 2 grease. It offers outstanding performance over a wide temperature range. The wax-free nature of the synthetic base fluid, together with its high viscosity index compared to mineral oils, provide excellent low temperature pumpability, very low starting and running torque, and can help reduce operating temperatures in the load zone of rolling element bearings.

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
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

Application


This product 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 -54°C to 177°C (-65°F to 350°F) with appropriate relubrication intervals.

This grease 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 Subject to equipment manufacturer approvals, it can also be used on naval shipboard auxiliary machinery and where superseded specifications MIL-G-81322 (WP), MIL-G-7711A, MIL-G-3545B, and MIL-G-25760A are recommended.

It is also 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 (350°F), high-speed miniature ball bearings, and bearing applications where oscillatory motion, and vibration create problems

This grease is qualified by the U.S. Military under Specification MIL-PRF-81322, General-Purpose, Aircraft, and Specification DOD-G-24508A (Navy) for shipboard auxiliary machinery. It is a U.S. Military Symbol WTR and NATO Code Number G-395 grease.

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