Mobil Polyrex EM Electric Motor Bearing Grease, Blue, 13.7 oz. Tube Outstanding grease life:Outstanding long-life, high-temperature lubrication of ball and roller bearings, particularly in sealed-for-life applications. Advanced polyurea thickener:Increased durability versus conventional polyurea greases when subjected to mechanical shear forces. Excellent corrosion resistance:Provides protection against rust and corrosion. Provides additional protection under mild salt-water wash conditions. Low-noise properties:Suitable for lubrication of ball bearings in many noise-sensitive applications