Mobil Centaur XHP 461
Mobil Centaur XHP 461 is a premium multipurpose grease formulated using advanced calcium sulphonate complex thickener technology to deliver outstanding lubrication performance in demanding industrial applications. Designed for use in heavily loaded and water-saturated environments, Mobil Centaur XHP 461 provides a balanced combination of corrosion protection, load-carrying capability and long service life. The grease is particularly well suited for use in industries such as steel production and paper manufacturing where operating conditions are harsh and equipment reliability is critical.
One of the key advantages of Mobil Centaur XHP 461 is its excellent resistance to water washout and spray-off. The advanced calcium sulphonate thickener system allows the grease to maintain its structure and performance even in the presence of significant water contamination. This ensures consistent lubrication of bearings and components operating in wet environments, helping reduce downtime and maintenance requirements.
Mobil Centaur XHP 461 also provides outstanding extreme pressure (EP) performance and load-carrying capability. The inherent EP properties of the calcium sulphonate thickener enable the grease to protect components under heavy and shock loading conditions. This makes it particularly suitable for applications such as rolling mills, continuous casting equipment and other heavy-duty industrial machinery.
Another important benefit of Mobil Centaur XHP 461 is its excellent corrosion protection. The formulation provides strong resistance to rust formation, even in environments where water exposure is frequent. This helps extend bearing life and maintain equipment reliability over extended service intervals. In addition, the grease is capable of absorbing free water without losing its consistency or protective properties, further enhancing its performance in wet operating conditions.
Mobil Centaur XHP 461 also offers excellent thermal stability and oxidation resistance. The grease maintains its consistency and performance at elevated temperatures, supporting reliable lubrication in applications operating up to approximately 232°C with proper re-greasing intervals. Its controlled oil bleed characteristics help ensure consistent lubrication while minimising oil separation under high-temperature conditions.
Mobil Centaur XHP 461 is recommended for heavily loaded industrial applications operating in water-saturated environments, particularly in steel mills and paper machines. Typical applications include ladle turret bearings, continuous casters, hot rolling work roll bearings, roll necks and paper machine components such as couch, press and breast rolls. The grease meets DIN 51825 KPF 1 K -20 performance requirements, confirming its suitability for demanding industrial lubrication needs.
Physical characteristics include an NLGI grade of approximately 1, with a base oil viscosity of approximately 460 mm²/s at 40°C and 30.8 mm²/s at 100°C. Mobil Centaur XHP 461 has a viscosity index of around 96, a dropping point of approximately 275°C and a weld load of approximately 400 kgf. The grease also demonstrates excellent resistance to water washout of approximately 1% at 79°C and water spray-off of approximately 25%, supporting reliable lubrication performance in severe wet and heavily loaded industrial conditions.
