Extreme Pressure Lithium Grease NLGI 1, 2, 3 – Pick the Right Grade for Your Job
Product Description
Specifications and Approvals
- • DIN 51825: 2004-06-KP 1K-20
- • ISO 6743-9：L-XBCEB 1
- • DIN 51502: KP 1 K-20
Performance Benefits
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• Mechanical & Shear StabilityMaintains consistency in the bearing. Reduces oil separation and the risk of leakage, extending relubrication intervals.
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• Extreme Load & Shock ResistanceProtects against high loads, shock loads, and vibration. Helps prevent premature wear in demanding applications.
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• Water & Corrosion ResistanceResists washout in wet conditions. Protects components from rust and corrosion, even with water contamination.
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• Long service lifeAchieves up to 60,000 km replacement intervals in hub applications, lowering maintenance frequency and costs.
Applications – Verified Use Cases
Applications
This EP lithium grease series (NLGI 1, 2, 3) is specifically designed for heavy-duty vehicle hubs and industrial equipment, delivering reliable lubrication and protection across demanding operating conditions.
On-Road Commercial Vehicles – Wheel hub bearings for light to medium-duty trucks, buses, and pickups. Suitable for chassis pins, bushings, and suspension components requiring EP protection.
Construction and Mining Equipment – Pins, bushings, and slew rings on excavators, loaders, and drilling rigs. Provides shock load resistance for vibrating screens and conveyor rollers.
General Industrial Machinery – Anti-friction and plain bearings in electric motors, pumps, and fans. Also for bushings and guide rails on packaging, textile, and conveying lines.
Agricultural Machinery – Universal joints, kingpins, and wheel bearings on tractors and harvesters under normal to heavy loads.
Grade Selection Guide – Quick Reference: Uncertain? Start with NLGI 2. For centralized grease systems or very cold climates, use NLGI 1. For severe vibration, high load, or leaking issues, upgrade to NLGI 3.
FAQ
Which grade (1#, 2#, 3#) should I choose for standard truck wheel hubs?
NLGI 2 is the industry standard for most on-road truck, bus, and trailer wheel hubs. Use NLGI 3 for older hubs with loose tolerance or chronic leakage. Use NLGI 1 for centralized lubrication systems or extreme cold.
What is the real-world service life?
In highway hub applications, users report up to 60,000 km regreasing intervals. For industrial bearings, service life depends on operating conditions (load, speed, temperature, contamination). Always monitor the first cycle.
Is this grease suitable for wet or muddy conditions?
Yes. It has excellent water resistance and corrosion protection. It does not easily wash out or emulsify in water-contaminated environments.
Do you offer OEM or private label packaging?
Yes. Customized packaging (labels, pail/drum colors, your branding) is available for qualified partners. Minimum order quantity applies. Contact our sales team for details.
Can I order smaller quantities for trial before bulk purchase?
Yes. Sample quantities (e.g., 1-2 pails) can be arranged. Trial orders are recommended for new applications or to verify compatibility with existing equipment.
Looking for a Reliable Extreme Pressure Grease Supplier?
We provide high-performance EP lithium greases for global distributors, wholesalers, and industrial clients.
✔ Bulk supply with stable quality
✔ OEM / Private Label solutions available
✔ Fast delivery for international markets
✔ Technical support for your specific applications
Contact us today to get a customized quotation and technical support.
Typical Test Data
| Parameter | NLGI 1 | NLGI 2 | NLGI 3 | Test Method |
|---|---|---|---|---|
| Grade / Softness | Soft (325) | Medium (280) | Firm (238) | ASTM D217 |
| Base Oil Viscosity @40℃ | 160 cSt | 160 cSt | 220 cSt | ASTM D445 |
| Dropping Point | 186℃ | 192℃ | 196℃ | ASTM D2265 |
| Four-Weld Load (EP) | 250 kg | 250 kg | 250 kg | ASTM D2596 |
| Copper Corrosion | 1b | 1b | 1b | ASTM D4048 |
| Soap Type | Lithium | Lithium | Lithium | - |
Summary of Differences:
NLGI 1: Softer grade for low-temperature pumpability or centralized systems.
NLGI 2: All-purpose grade, the safest choice for most truck/bus hubs and general industry.
NLGI 3: Firmer grade with higher base oil viscosity for heavy load, vibration, or loose-fitting bearings where retention is critical.
Health, Safety & Environment
Avoid contact with skin. Use impervious gloves with used oil. After skin contact, wash immediately with soap and water.
Take used oil to an authorised collection point. Do not discharge into drains, soil or water.