Lithium Grease
Lithium Grease
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Lithium & Lithium Complex Greases; High-Performance Multi-Purpose Lubricants
Lithium-based greases account for over 70% of worldwide industrial lubrication applications, serving as the benchmark for multi-purpose rotational machinery protection. Utilizing advanced lithium 12-hydroxystearate soap and high-performance Lithium Complex thickener architectures, DKFL Lithium Greases provide an exceptional balance of mechanical shear stability, elevated dropping points, structural durability, and high thermal oxidation resistance.
1. Engineering Advantages of DKFL Lithium Formulations
- Outstanding Shear Stability: The robust lithium soap fiber matrix resists breakdown under severe mechanical churning and high centrifugal forces, eliminating oil bleeding and premature housing leakage.
- High Dropping Point: DKFL Lithium Complex grades feature dropping points exceeding +260°C, ensuring continuous thermal integrity from -30°C up to +160°C.
- Oxidation & Rust Protection: Fortified with high-grade anti-oxidants and copper/ferrous corrosion inhibitors, preventing sludge formation and acid attack on polished bearing raceways.
- Extreme Pressure (EP) Capability: Chemically bonded with anti-wear and extreme-pressure additives (Four-Ball Weld Load > 3,100 N), preventing micro-welding and spalling under shock load conditions.
2. Technical Specifications & Performance Matrix
| Technical Parameter (Method) | Standard Lithium (DKFL MP Series) | Lithium Complex (DKFL EP Complex) |
|---|---|---|
| Thickener Chemistry | Lithium 12-Hydroxystearate | Lithium Complex Soap |
| Dropping Point (ASTM D2265) | ≥ 190°C | ≥ 260°C |
| Operating Temperature Range | -20°C to +120°C | -30°C to +160°C (Peaks to 180°C) |
| NLGI Consistency | NLGI 2 / 3 | NLGI 2 (EP Enhanced) |
| Water Washout Resistance (ASTM D1264) | Good | Superior |
3. Application Scope & Chemical Compatibility
Primary Applications: Electric motor bearings, automotive wheel bearings (hub units), industrial Plummer blocks (SN/SNL series), UC insert units, rolling mill guides, and heavy conveyor pulleys subject to sustained dynamic stress.
Compatibility Protocol: While lithium greases exhibit moderate compatibility with calcium-soap greases, they are strictly incompatible with clay-based Bentonite and Polyurea greases. Cross-contamination destroys the colloidal thickener structure, drastically reducing the dropping point and leading to rapid grease expulsion. Ensure complete chemical flushing prior to re-lubrication.