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105330

MOBIL POLYREX EM (Case - 10 Tubes)

SKU# 105330

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$53.50

Quick Overview

Super-premium Mobil Polyrex EM Series grease is specially formulated for electric-motor bearings. The advanced thickener formulation and proprietary manufacturing techniques provide improved bearing performance and protection for long electric motor life.


PDS/MSDS

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Features

Mobil Polyrex EM and Mobil Polyrex EM 103 offer the following features and benefits:

Features

Advantages and Potential Benefits

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

Mobil Polyrex EM and Mobil Polyrex EM 103 provide protection against rust and corrosion. Mobil Polyrex EM provides additional protection under mild salt-water wash conditions versus Polyrex EM 103

Low-noise properties

Mobil Polyrex EM is suitable for lubrication of ball bearings in many noise-sensitive applications

Applications

Mobil Polyrex EM greases are recommended by many major bearing and electric motor manufacturers for long-life lubrication of electric motor ball and roller bearings.

Mobil Polyrex EM 103 is more specifically recommended for applications such as vertically mounted bearings, or very large motors where a stiffer grease consistency may be required by the OEM, and low noise properties are not required.

Mobil Polyrex EM greases have been shown to be compatible with a number of ExxonMobil lithium complex greases, as well as competitive electric motor mineral polyurea products, as determined by the methodology of ASTM D6185. For specific questions about grease compatibility, contact your Mobil representative.

Key applications include:

  • Electric motor bearings
  • Fin fan bearings
  • High-temperature pump bearings
  • Factory-filled, sealed-for-life ball bearings
  • Ball or roller bearings operating at high temperatures where low oil separation is required
  • Polyrex EM for ball or roller bearings operating in noise sensitive environments
Specifications

Mobil Polyrex EM meets or exceeds the requirements of:

Mobil Polyrex EM

Mobil Polyrex EM 103

DIN 51825: (2004-06)

KP2P-20

 
Typical Properties
 

Mobil Polyrex EM

Mobil Polyrex EM 103

NLGI Grade

2

3

Color

Blue

Blue

Base Oil Viscosity, ASTM D 445

   

cSt @ 40°C

115

115

cSt @ 100°C

12.2

12.2

Mineral Oil Viscosity Index, ASTM D 2270

95

95

Penetration, ASTM D217 worked, 60x, mm/10

285

250

Penetration Change after 100.000 strokes, ASTM D217, mm/10

40

40

Dropping Point, ASTM D 2265, °C (°F)

260

270

Oil separation test, ASTM D 1742, %

0.5

0.1

High Temperature Grease Life, ASTM D 3336, Hours @ 177°C

750+

750+

4-Ball Wear Scar, ASTM D 2266, @ 40kg, 1200 rpm, 75°C, 1 hr, mm

0.41

0.6

Low Temperature Torque, ASTM D 1478, g-cm @ -29°C

   

Starting

7500

9300

Running

800

1000

EMCOR Corrosion Performance, 10% Synthetic Sea Water ASTM D 6138 (Prepared As Per ASTM D 665B)

0,1 (No Rust)

 

Rust Protection, ASTM D 1743, Distilled Water

Pass

Pass

Copper Corrosion Resistance, ASTM D 4048

1A

1A

Water Washout, ASTM D 1264, %

1.9

0.8