Mobil Polyurea Polyrex Grease
Mobil Polyrex EM electric motor bearing grease has earned an exceptional reputation for outstanding performance.
Our Mobil Polyrex™ EM grease is designed for electric motor bearings. Specially formulated to improve bearing performance and protection for long electric motor life, this grease is recommended by many major bearing and electric motor manufacturers for long-life lubrication of electric motor ball bearings and roller bearings.
Mobil Polyrex EM electric motor bearing grease provides:
- Outstanding long-life, high-temperature lubrication
- Increased durability compared to conventional grease
- Protection against rust and corrosion
- Low noise properties
Applications
Mobil Polyrex EM greases are recommended by many major bearing and electric motor manufacturers for long-life lubrication of electric motor ball and roller bearings.
For more information on Electric motor bearing grease, please download the Lubrication Guide.
For More Information Please click here!
| Property | MOBIL POLYREX EM | MOBIL POLYREX EM 103 |
| Grade | NLGI 2 | NLGI 3 |
| Thickener Type | Polyurea | Polyurea |
| Color, Visual | Blue | Blue |
| Copper Strip Corrosion, 24 h, 100 C, Rating, ASTM D4048 | 1A | 1A |
| Corrosion Preventive Properties, Rating, ASTM D1743 | Pass | Pass |
| Dropping Point, °C, ASTM D2265 | 260 | 270 |
| Four-Ball Wear Test, Scar Diameter, mm, ASTM D2266 | 0.41 | 0.6 |
| Low Temperature Torque, Running, -29 C, g-cm, ASTM D1478 | 405 | 910 |
| Low Temperature Torque, Starting, -29 C, g-cm, ASTM D1478 | 3630 | 5840 |
| Lubrication Life @ 177 C, h, ASTM D3336 | 750+ | 750+ |
| Oil Separation, 0.25 psi, 24 h @ 25 C, mass%, ASTM D1742 | 0.5 | 0.1 |
| Penetration, 60X, 0.1 mm, ASTM D217 | 285 | 250 |
| Penetration, Change from 60X to 100,000X, 0.1 mm, ASTM D217 | 40 | 40 |
| SKF Emcor Rust Test, 10% Synthetic Sea Water, ASTM D6138 | 0 , 1 | |
| Viscosity @ 100 C, Base Oil, mm2/s, ASTM D445 | 12.2 | 12.2 |
| Viscosity @ 40 C, Base Oil, mm2/s, ASTM D445 | 115 | 115 |
| Viscosity Index, ASTM D2270 | 95 | 95 |
| Water Washout, Loss @ 79 C, wt%, ASTM D1264 | 1.9 | 0.8 |
