Mobil Centaur XHP 221
Mobil Centaur XHP 221 is a premium multipurpose grease formulated to provide outstanding lubrication performance for rolling element bearings operating under demanding industrial conditions. Developed using advanced calcium sulphonate complex thickener technology combined with high-quality base oils, Mobil Centaur XHP 221 delivers excellent protection against water washout, corrosion and heavy loads. The grease is specifically designed for applications where equipment operates in wet environments, under high temperatures and heavy mechanical loads.
One of the key advantages of Mobil Centaur XHP 221 is its exceptional resistance to water and corrosion. The calcium sulphonate thickener system provides inherent protection against water ingress and helps prevent corrosion of bearing components. This makes the grease particularly suitable for applications exposed to moisture, such as paper mills, steel processing and mining operations.
Mobil Centaur XHP 221 also offers excellent mechanical stability. The grease resists softening and maintains its consistency even under mechanical shear and in the presence of water contamination. This ensures that the lubricant remains in place within bearings, providing consistent lubrication performance and helping extend equipment life under challenging operating conditions.
Another important benefit of Mobil Centaur XHP 221 is its strong load-carrying capability. The grease provides excellent extreme pressure performance, helping protect bearings operating under low to moderate speeds and heavy loads. This makes it well suited for industrial applications where equipment is subjected to continuous or intermittent heavy loading.
Mobil Centaur XHP 221 also delivers excellent thermal stability. The formulation resists oxidation and oil separation at elevated temperatures, helping maintain consistent lubrication performance over extended service intervals. This contributes to longer grease life and reduced maintenance requirements in high-temperature industrial applications.
Mobil Centaur XHP 221 is recommended for use in rolling element bearings in industrial machinery operating under wet, heavily loaded and high-temperature conditions. Typical applications include wet-end paper machine bearings, heavily loaded ball and roller bearings, and equipment used in steel mills and mining operations. The grease meets DIN 51825 KPF1-2G-20 performance requirements, ensuring suitability for a wide range of industrial lubrication needs.
Physical characteristics include an NLGI grade of approximately 1.5 with a base oil viscosity of approximately 220 mm²/s at 40°C and 18.7 mm²/s at 100°C. Mobil Centaur XHP 221 has a dropping point greater than 308°C and demonstrates excellent water washout resistance of approximately 1% at 79°C. The grease also provides a weld load of approximately 500 kgf and a worked penetration of approximately 305 (0.1 mm), supporting reliable lubrication performance and protection in demanding industrial environments.
