Mobilgrease 28 Synthetic aviation grease MIL-PRF-81322G 16 kg bucket

Synthetic Aviation Grease, MIL-PRF-81322G approved | Exxonmobil Mobilgrease 28Mobilgrease 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. 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.The clay thickener gives Mobilgrease 28 a high dropping point value of around 300ºC, which provides excellent stability at high temperatures. Mobilgrease 28 resists water washing, provides superior load-carrying ability, reduces frictional drag, and prevents excessive wear. Tests show that Mobilgrease 28 lubricates effectively rolling element bearings under conditions of high speeds and temperatures.  Mobilgrease 28 has also shown excellent ability to lubricate heavily loaded sliding mechanisms, such as wing flap screw jacks.For more than 30 years, Mobilgrease 28 has been the multi-purpose grease of choice for military and related aviation applications, worldwide. Mobilgrease 28 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.ApplicationsMobilgrease 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 -54ºC to 177ºC (-65ºF to 350ºF) with appropriate relubrication intervals.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to equipment manufacturer approvals, it can also be used on naval shipboard auxiliary machinery and where superseded specifications MIL-G-81322 (WP), MIL-G-7711A, MIL-G-3545B, and MIL-G-25760A are recommended.Mobilgrease 28 is also recommended for industrial lubrication,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 177ºC (350ºF), high-speed miniature ball bearings, and bearing applications where oscillatory motion, and vibration create problems.Specifications and ApprovalsThis product has the following approvals:NATO G-395MIL-PRF-81322G (Military)MIL-PRF-24508BDOD-G-24508A (Navy)Also suitable for:Bafang BBS01/BBS02/BBS03/BBSHD mid-drive motorsLubrication of nylon gears and transmission elementsBenefitsAllows wide operating temperature range – outstanding high and low temperature performanceProvides thicker fluid films protecting against wear of equipment parts operating at high temperatureCauses low resistance during start-up at very low temperaturesSuperb bearing protection and helps extend bearing life and reduce bearing replacement costsAvoids excessive wear, even under shock loadLong relubrication intervalsMaintains excellent grease performance in adverse weather and other water-exposureconditionsFeaturesHigh viscosity index (VI) synthetic base stock with no wax contentExcellent protection against wear and corrosionExtreme-pressure protection characteristicsHigh thermal/oxidative stabilityHigh resistance to water washoutVolume: 16kg bucketAlso available as: , Technical specificationsGradeNLGI 1.5Base Oil Viscosity of Greases @ 100 C, mm2/s, AMS 17005.7Base Oil Viscosity of Greases @ 40 C, mm2/s, AMS 169729.3Bomb Oxidation, Pressure Drop, 100 h, kPa, ASTM D942PASSColor, VisualDark RedCopper Strip Corrosion, 24 h, 100 C, Rating, ASTM D40481BDirt, # particles 25u to 74 u, FTM 3005PassDirt, # particles 75u or larger, FTM 30050Dropping Point, °C, ASTM D2265307Evaporation Loss, 22 h, 177 C, mass%, ASTM D25956Falex Block on Ring Oscillating Wear Scar, 35k cycles, 90 deg angle, Al/bronze block, mm, ASTM D3704PASSFour-Ball Wear Test, Scar Diameter, mm, ASTM D22660.6Load Carrying Capacity, Load-Wear Index, kgf, ASTM D259640Low Temperature Torque, Running @ -54 C, 60 min, Nm, ASTM D14780.05Low Temperature Torque, Starting @ -54 C, Nm, ASTM D14780.43Lubrication Life @ 177 C, h, ASTM D3336PASSNBR-L, AMS 3217/2 Compat, 70C 158 h, vol %, FTM 36036Oil Separation, 30 h @ 177 C, mass%, ASTM D61843.5Oxidation Stability, Pressure Drop, 500 h, kPa, ASTM D942PASSPen Worked X 100,000, 1/16 holes, 0.1 mm, FTM 313303Penetration, Worked, 60X, 0.1 mm, ASTM D217293Rust Protection, 48 h @ 125 F, Rating, ASTM D1743PASSTexture, VISUALSmooth, butteryThickener, wt%, AMS 1698ClayWater Washout, Loss @ 41 C, wt%, ASTM D1264(mod)1 Information on product safety (Manufacturer, Contact)EXXONMOBIL CENTRAL EUROPE HOLDING GMBH, Ericusspitze 2, 20457 Hamburg, GERMANY, +49 40 6393 0, , www.exxonmobil.de