Mobil Vacuoline 148
Mobil Vacuoline 148 is part of the Mobil Vacuoline 100 Series, a range of extra high-quality circulating system oils primarily intended for lubrication of plain bearings operating under full fluid film conditions. These oils are particularly suited to rolling mill applications where heavy water contamination may occur, such as back-up roll bearings. The formulation provides excellent demulsibility, oxidation resistance and protection against rust and corrosion for dependable system performance.
One of the key advantages of Mobil Vacuoline 148 is its outstanding demulsibility. The oil separates readily from water and contaminants, helping maintain lubrication performance even in severely contaminated systems. This supports cleaner systems, improved filtration and reduced maintenance downtime.
Mobil Vacuoline 148 also provides strong resistance to oxidation and thermal degradation. The formulation helps extend oil service life while minimising sludge formation. This contributes to cleaner systems, longer filter life and improved equipment reliability. The oil also delivers excellent rust and corrosion protection.
Another important benefit is its suitability for circulating bearing systems. Mobil Vacuoline 148 is recommended for back-up roll bearings in rolling mills and other full fluid bearing systems. The oil performs well in both single and dual tank circulation systems and allows contaminants to separate readily for removal by centrifuge, filtration or settling.
Mobil Vacuoline 148 meets rolling mill lubricant requirements including Primetals Technologies Morgoil specifications and SMS Group X-Roll bearing specifications. The ISO VG 680 viscosity provides very high film strength and dependable lubrication in heavily loaded bearing systems.
Physical characteristics include ISO VG 680 viscosity grade with a kinematic viscosity of approximately 680 mm²/s at 40°C and 36.7 mm²/s at 100°C. Mobil Vacuoline 148 has a flash point of approximately 318°C and a pour point of approximately −6°C. The oil provides reliable water separation, corrosion protection and long service life in heavy-duty circulating system applications.
