Mobil Polyrex EM Grease

Mobil Polyrex EM Grease

0.00 LBS

Mobil Polyrex EM NLGI 2 Blue Polyurea Grease 

Mobil Polyrex EM 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

4 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

  • 5
    Excellent Product and Prompt Shipping

    Posted by Gary on Jun 01 2017

    Easy Ordering, Quick Shipping, Neatly packaged. Excellent Product and Excellent Price

  • 5
    Great product

    Posted by Kevin on May 04 2017

    We use this grease in all of our electric motors, it hasnt failed us yet! PCS also sells it at the best p[rice i could find.

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