- Bearings & chassis
NLGI 1
Lithium complex ISO VG 460 grease for slow, heavily loaded bearings and gear couplings
ViscosityNLGI
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Lubricating grease KP1N-20L — DIN 51825
Grease class DIN 51825: K = bearings, P = EP additives, 1 = NLGI grade, N = maximum temperature, -20 = minimum temperature.
| Property | Typical value | Method |
|---|---|---|
| Thickener type | Lithium Complex Lithium Complex Lithium Complex | |
| Colour | Dark blue Dark blue Gray-Black | Visual |
| Copper strip corrosion, 24 h, 100 CRating | 1A | ASTM D4048 |
| Corrosion Preventive PropertiesRating | Pass | ASTM D1743 |
| Four-Ball Extreme pressure Test, Weld pointkgf | 315 | ASTM D2596 |
| Four-Ball Wear Test, Scar Diametermm | 0.5 | ASTM D2266 |
| Molybdenum disulphide content, wt % | 3 | CALCULATED |
| Oxidation stability, Pressure Drop, 100 h, kPa | 13.8 | ASTM D942 |
| Roll Stability, Penetration Consistency change, 0.1 mm | -5 | ASTM D1831 |
| Timken OK load, lb | 50 | ASTM D2509 |
| Viscosity @ 100 C, Base oilmm2/s | 30.8 | ASTM D445 |
| Viscosity @ 40 C, Base oilmm2/s | 460 | ASTM D445 |
| Viscosity index | 96 | ASTM D2270 |

Mobilgrease XHP 461 is the NLGI 1 grade of the Mobilgrease XHP 460 series of extended-service, heavy-duty lithium complex greases, formulated with an ISO VG 460 base oil (460 mm²/s at 40°C). It offers excellent high-temperature performance, adhesion, structural stability, resistance to water contamination and strong rust and corrosion protection, with a dropping point of 270°C and a maximum recommended operating temperature of 140°C. With its high base-oil viscosity, it is recommended for high-load applications at slow-to-moderate speeds, including bearings in the paper, construction and mining industries and off-highway vehicles. ExxonMobil recommends it for industrial and marine applications, chassis components and farm equipment; it offers excellent low-temperature performance and is satisfactory for low-speed flexible gear-type couplings. It meets the requirements of DIN 51825 KP 1 N -20 L and offers superb resistance to water washout and spray-off, along with very good anti-wear and extreme-pressure performance (four-ball weld point 315 kgf), helping extend equipment life and reduce unplanned downtime.
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