MOBIL POLYREX EM 103

MOBIL POLYREX EM 103 greases are specifically designed for electric-motor bearings, featuring an advanced thickener formulation and proprietary manufacturing techniques. These characteristics enhance bearing performance and provide long-term protection, contributing to extended electric motor life.

Product Type: Grease

Application Area: Ball Bearing, Bearings, Electric Motor Bearing, Fan Bearings, Pump Bearings, Roller Bearings

Features: Corrosion Resistant, High Durability, High Temperature Performance, Reduced Noise, Service Life Extension

Thickener Type: Polyurea

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Identification & Functionality

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Properties

NLGI Grade
Specifications
ValueUnitsTest Method / Conditions
GradeNLGI 3--
Base Oil Viscosity of Greases (at 100°C)12.2mm²/sAMS 1700
Base Oil Viscosity of Greases (at 40°C)115mm²/sAMS 1697
Copper Strip Corrosion Rating (at 100°C, 24 h)1A-ASTM D4048
Dropping Point270°C-
Four-Ball Wear Test (Scar Diameter)0.6mmASTM D2266
Low Temperature Torque (Running at -29°C)1000g cmASTM D1478
Low Temperature Torque (Starting at -29°C)9300g cmASTM D1478
Lubrication Life (at 177°C)min. 750hrsASTM D3336
Oil Separation0.1mass %ASTM D1742
Penetration (60 x 0.1 mm)250-ASTM D217
Penetration (Change from 60x to 100,000x, 0.1 mm)40-ASTM D217
Viscosity Index95-ASTM D2270
Water Washout Loss (at 79°C)0.81wt.%ASTM D1264