NAT-7248 High Temperature Grease

NAT-7248

NAT-7248 High Temp. Grease is a multipurpose, extreme pressure, anti-wear grease that is specially formulated for use in all types of heavy duty construction, mining, farming and industrial equipment that are being used in hot, wet or heavily loaded applications especially where operating temperatures are above 350°F (177°C).

NAT-7248 High Temp. Grease is compounded from the finest high viscosity index, solvent refined severely hydrofinished 100% pure paraffin base stocks available. Blended into these 100% pure paraffin base stocks is an inorganic thickener. This inorganic thickener allows NAT-7248 High Temp. Grease the ability to lubricate the bearings effectively in temperatures up to 600°F (316°C).

Further blended into these 100% paraffin base stocks is synthesized moly. Synthesized moly is an organic type of moly which, like molybdenum, disulfide (MoS2 ) plates itself to metal surfaces of the bearings. Once plated to the metal surfaces of the bearings, moly forms a long lasting solid lubricant film. This solid lubricant film will withstand pressures up to 500,000 pounds per square inch, giving the metal surfaces of the bearings the protection they need during periods of high speeds, high shock loads and extreme pressures.

NAT-7248 High Temp. Grease has excellent rust and oxidation inhibiting characteristics, excellent water resistance, shear and thermal stability, and good mechanical and pumpability properties.

NAT-7248 High Temp Grease also has excellent cohesive and adhesive properties. Because of these cohesive and adhesive properties, NAT-7248 High Temp. Grease will not wash out, pound out, splatter or squeeze out even under the heaviest loads or vibrations.

NAT-7248 High Temp. Grease can be applied either manually or by a heavy duty automatic lube system.

NAT-7248 High Temp. Grease #2 has an operating temperature of 0℉ to 600℉ (-17.7 to 316°C).

Specifications

NAT-7248-2
Type of ThickenerBentone
D-217Penetration285-295
D-2265Dropping Point, °F (°C)None
D-445Kinematic Viscosity (Base Oil) cSt @ 40°C282.04
D-445Kinematic Viscosity (Base Oil) cSt @ 100°C21.95
D-2270Base Oil Viscosity Index105
D-92Base Oil Flash Point, °F (°C)520°/271°
-Base Oil Fire Point, °F (°C)590°/310°
D-2596Four Ball EP Weld Point, kg400
D-2266Four Ball Wear, 40kg/1200rpm/1 hr./167°F Scar Width, mm0.64
D-942Oxidation Stability PSI Loss @100 hours4
D-1264Water Washout, % Loss @175°F2.5
D-4049Water Spray Off Test, % Loss15.4
D-2595Evaporation Loss @121°C, 22 hours0.67
D-1742Oil Separation % Wt. of Oil Separation0.73

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