Mobil PolyrexTM EM Polyurea Grease is a premium-quality, polyurea-thickened, NLGI Grade 2 grease specially formulated for the long-life lubrication of electric motor bearings. It provides excellent high-temperature performance, outstanding oxidation resistance, low noise operation, and protection against rust and corrosion. It is also suitable for high-speed ball and roller bearings where long service life and minimal oil separation are required.