Description
UNIREX™ N greases are premium lithium-complex greases built for high-temperature service in rolling-element bearings. Mobil Unirex N Series greases are premium lithium‑complex lubricants designed for long‑life performance in demanding industrial and automotive applications. They offer excellent thermal stability, strong rust and corrosion protection, and maintain structure even under high temperatures and heavy loads. These greases are widely used in electric motor bearings, pumps, and general machinery where reliable, extended lubrication is essential. Their formulation helps reduce downtime and extend equipment life in harsh operating environments.
Features & Benefits
- Excellent High-Temperature Performance: Lithium-complex thickener resists softening and grease runout up to 190°C.
- Long Grease Life: Provides reliable continuous lubrication at bearing temperatures up to 140°C.
- Low-Temperature Performance: Supports easy start-up down to -20°C and meets DIN 51825 low-temperature torque requirements.
- Excellent Mechanical Stability: Resists softening during mechanical working.
- Water & Corrosion Resistance: Helps prevent water washout and protects bearings from corrosion.
- High-Speed Performance: Delivers reliable lubrication for demanding high-speed bearing applications.
Properties and Specifications
| Property | 2 | 3 |
| Grade | NLGI 2 | NLGI 3 |
| Thickener Type | Lithium Complex | Lithium Complex |
| Color, Visual | Green | Green |
| Dropping Point, °C, ASTM D2265 | 210 | 210 |
| Oil Separation, 30 h @ 100 C, mass%, ASTM D6184 | 1.5 | 0.6 |
| Penetration, 100 KX, 0.1 mm, ASTM D217 | 25 | 30 |
| Penetration, 60X, 0.1 mm, ASTM D217 | 280 | 235 |
| SKF Emcor Rust Test, Distilled Water, ASTM D6138 | 0 , 1 | 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 | 3.7 | 3.5 |
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