Mobil Polyrex EM, 10/13.7 ounce tube case is a blue in color NLGI 2 grease specially formulated for electric-motor bearings. The advanced thickener formulation and proprietary manufacturing techniques provide improved bearing performance and protection for long electric motor life. It also has the following benefits:
Outstanding grease life: Outstanding long-life, high-temperature lubrication of ball and roller bearings, particularly in sealed-for-life applications.
Advanced polyurea thickener: Increased durability versus conventional polyurea greases when subjected to mechanical shear forces.
Excellent corrosion resistance: Provides protection against rust and corrosion. Provides additional protection under mild salt-water wash conditions.
Low-noise properties: Suitable for lubrication of ball bearings in many noise-sensitive applications.
Electric motor bearings
Fin fan bearings
High-temperature pump bearings
Factory-filled, sealed-for-life ball bearings
Ball or roller bearings operating at high temperatures where low oil separation is required
Mobil Polyrex EM
Base Oil Viscosity, ASTM D 445
cSt @ 40C
cSt @ 100C
Viscosity Index, ASTM D 2270
Penetration, ASTM D217 worked, 60x, mm/10
Penetration Change after 100.000 strokes, ASTM D217, mm/10
Dropping Point, ASTM D 2265, C (F)
Oil separation test, ASTM D 1742, %
High Temperature Grease Life, ASTM D 3336, Hours @ 177C
4-Ball Wear Scar, ASTM D 2266, @ 40kg, 1200 rpm, 75C, 1hr, mm
Low Temperature Torque, ASTM D 1478, g-cm @ -29C
EMCOR Corrosion Performance, 10% Synthetic Sea Water ASTM D 6138