For Reference Only" Mobil Electric Motor Bearing Grease: Polyrex EM, 14oz Cartridge, NLGI Grade 2, Polyurea Thickener, Item# 5XB54 , MFR Model # 124050. This High-Temperature bearing grease is designed for electric motors to prevent overheating and excessive wear on fast-moving elements in operational temperatures of 300 F or greater. The application is for Ball or Roller bearings operating at high temperatures where low Oil separation is required. : Electric Motor Bearings, Factory Filled, Fin Fan Bearings,. High Temperature pump bearings: Polyrex EM for Ball or Roller Bearings operating in noise sensitive environments. Sealed for life of Ball Bearings. Note: Award of this micro purchase will result in a requirements contract.