Mobil Polyrex EM Grease | 10/13.7 Ounce Tubes

Mobil Polyrex EM Grease | 10/13.7 Ounce Tubes
(2 reviews)
11.00 LBS

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
Typical Properties Mobil Polyrex EM
NLGI Grade 2
Color Blue
Base Oil Viscosity, ASTM D 445  
cSt @ 40C 115
cSt @ 100C 12.2
Viscosity Index, ASTM D 2270 95
Penetration, ASTM D217 worked, 60x, mm/10 285
Penetration Change after 100.000 strokes, ASTM D217, mm/10 40
Dropping Point, ASTM D 2265, C (F) 260
Oil separation test, ASTM D 1742, % 0.5
High Temperature Grease Life, ASTM D 3336, Hours @ 177C 750+
4-Ball Wear Scar, ASTM D 2266, @ 40kg, 1200 rpm, 75C, 1hr, mm 0.41
Low Temperature Torque, ASTM D 1478, g-cm @ -29C  
Starting 7500
Running 800
EMCOR Corrosion Performance, 10% Synthetic Sea Water ASTM D 6138  0,1 (No Rust)
Rust Protection, ASTM D 1743, Distilled Water Pass
Copper Corrosion Resistance, ASTM D 4048 1A
Water Washout, ASTM D 1264, % 1.9

2 Reviews | Write a Review.

  • 5
    This is now THE standard electric motor ball bearing grease.

    Posted by Curtis Cameron on Mar 23 2020

    See review above.

  • 5
    Good deal

    Posted by None on Mar 26 2018

    fast and easy good pricing

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