SumTech EMB-160 is semi-synthetic ISO 150 polyurea grease specifically designed for use in rolling element anti-friction bearings operating under extreme temperatures. The organic polyurea thickener system contains no metal ions which act as catalysts for oxidation. SumTech EMB-160 was designed with special antioxidants and corrosion inhibitors to ensure long life of rolling bearings operating under severe temperature and high humidity. The extended service temperature range of -40°F to 320°F and high speed factor of 500,000 nDm makes SumTech EMB-160 the ideal lubricating grease for electric motor bearings designed to be lubricated for life.