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 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 3 |
| 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 | 270 |
| Four-Ball Wear Test, Scar Diameter, mm, ASTM D2266 | 0.6 |
| Low Temperature Torque, Running, -29 C, g-cm, ASTM D1478 | 1000 |
| Low Temperature Torque, Starting, -29 C, g-cm, ASTM D1478 | 9300 |
| Lubrication Life @ 177 C, h, ASTM D3336 | 750+ |
| Oil Separation, mass%, ASTM D1742 | 0.1 |
| Penetration, 60X, 0.1 mm, ASTM D217 | 250 |
| Penetration, Change from 60X to 100,000X, 0.1 mm, ASTM D217 | 40 |
| 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 | 0.8 |
EXXONMOBIL CENTRAL EUROPE HOLDING GMBH, Ericusspitze 2, 20457 Hamburg, GERMANY, +49 40 6393 0, [email protected], www.exxonmobil.de
Fiona O. –
Very effective; noticed a change after just one week. Packaging was slightly damaged, but product is excellent. Perfect for my needs; I couldn’t be happier. No unpleasant smell, which I really appreciate.
louis75 –
Everything perfect, would buy again. Good fit and quality.
Filippo –
Everything in order. Works without any issues.
Lina S. –
Super fast delivery, thank you. A friend recommended it; I’m very happy with the purchase.
nathan99 –
Great service and product. Great service, thank you. Delivered earlier than expected. Worth every cent.
Yann –
Better than I thought; I’m satisfied. Recommended.
Alice –
Very satisfied, better than I expected. Not too big, not too small, just right.