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
Theresa K. –
I’ve been using it for 2 weeks and I already see results! Very satisfied, better than I expected. Very satisfied, it’s even better than I expected. Perfect for my needs; I couldn’t be happier.
Alberto –
Great service and product. Perfectly packaged. Solid build quality. Very functional.
Emma –
Very satisfied, better than expected. Very effective; noticed a change after just one week. No unpleasant smell, which I really appreciate. No unpleasant smell, which I really appreciate.
elena_bella –
I was skeptical, but now I order regularly. Perfect for my needs; I couldn’t be happier. This solved my problem completely! Great product, worth every cent.
giorgia_bella –
Easy to use, without making a mess. Been using it for 2 weeks and already see results! Perfect for my needs, couldn’t be happier.
tristan88 –
Clear recommendation. Excellent service. Well packaged and delivered quickly.
Jana H. –
Surprisingly good quality for the price. The quality pleasantly surprised me. I’ve been using it for 2 weeks and already see results!
Ava –
Perfect for my needs; I’m very satisfied.
Claire K. –
Looks even nicer in real life. I’ve been using it for 2 weeks and already see results! Packaging was slightly damaged, but the product is excellent. I was skeptical, but now I’ll order regularly.
annika23 –
No unpleasant smell; I really like that. Very effective; noticed a change after just one week. Not too big, not too small, just right. Packaging slightly damaged, but the product is excellent.