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.
Application
- 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 |
