Description
Super-premium Mobil Polyrex™ EM Series greases are 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.
- Outstanding grease life
- Advanced polyurea thickener
- Excellent corrosion resistance
- 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.
- Mobil Polyrex EM 103 is more specifically recommended for applications such as vertically mounted bearings, or very large motors where a stiffer grease consistency may be required by the OEM.
- Key applications include:
- 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 for ball or roller bearings operating in noise sensitive environments
Specifications & Approvals
- DIN 51825:2004-06 – K 2 P -20
Benefits
- Outstanding long-life, high-temperature lubrication of ball and roller bearings, particularly in sealed-for-life applications
- Increased durability versus conventional polyurea greases when subjected to mechanical shear forces
- Mobil Polyrex EM and Mobil Polyrex EM 103 provide protection against rust and corrosion.Mobil Polyrex EM provides additional protection under mild salt-water wash conditions versus Polyrex EM 103
- Mobil Polyrex EM is suitable for lubrication of ball bearings in many noise-sensitive applications
Technical specifications
| Grade | NLGI 2 |
| Thickener Type | Polyurea |
| Color, Visual | Blue |
| Copper Strip Corrosion, 24 h, 100 C, Rating, ASTM D4048 | 1A |
| Corrosion Preventive Properties, Rating, ASTM D1743 | PASS |
| Dropping Point, °C, ASTM D2265 | 260 |
| Four-Ball Wear Test, Scar Diameter, mm, ASTM D2266 | 0.41 |
| Low Temperature Torque, Running, -29 C, g-cm, ASTM D1478 | 800 |
| Low Temperature Torque, Starting, -29 C, g-cm, ASTM D1478 | 7500 |
| Lubrication Life @ 177 C, h, ASTM D3336 | 750+ |
| Oil Separation, mass%, ASTM D1742 | 0.5 |
| Penetration, 60X, 0.1 mm, ASTM D217 | 285 |
| Penetration, Change from 60X to 100,000X, 0.1 mm, ASTM D217 | 40 |
| SKF Emcor Rust Test, 10% Synthetic Sea Water, ASTM D6138 | 0.1 |
| Viscosity @ 100 C, Base Oil, mm2/s, ASTM D445 | 12.2 |
| Viscosity @ 40 C, Base Oil, mm2/s, ASTM D445 | 115 |
| Viscosity Index, ASTM D2270 | 95 |
| Water Washout, Loss @ 79 C, wt%, ASTM D1264 | 1.9 |
EXXONMOBIL CENTRAL EUROPE HOLDING GMBH, Ericusspitze 2, 20457 Hamburg, GERMANY, +49 40 6393 0, [email protected], www.exxonmobil.de
Amelie J. –
Not too big, not too small, perfect. Surprisingly good quality for the price. I was skeptical, but now I’ll order it regularly. Perfect for my needs; I’m very satisfied.
Julian –
Everything’s great.
paul_s –
Very functional. Everything was smooth and fast. Good quality at a fair price.
Zoe W. –
I’ve been using it for 2 weeks and I already see results! Perfect for my needs; I’m very satisfied. Better than anything I’ve tried so far. Surprisingly good quality for the price.
Benjamin –
Durable product. Excellent service.