- Mobil Polyrex461 EP is a shear-stable polyurea grease with excellent extreme-pressure (EP) and load-carrying characteristics.
- The proprietary polyurea thickener system exhibits excellent resistance to oxidation and oil separation at operating temperatures as high as 170°C.
- With its outstanding high-temperature oxidation stability, load-carrying capability, shear stability, water resistance and wide operating temperature range, Mobil Polyrex461 EP is an excellent multi-purpose grease for a wide array of industrial applications such as steel mills and wood pellet machines.
- This grease has excellent pumpability in central grease systems.
- Recommended operating temperature range is from -20 °C to 170 °C.
Specification and Approvals
Property
|
|
Grade
|
NLGI 1
|
Copper Strip Corrosion, Rating, ASTM D4048
|
1B
|
Rust, Rating, ASTM D1743
|
Pass
|
SKF Emcor Rust Test, Distilled Water, ASTM D6138
|
0-1
|
Four-Ball Extreme Pressure Test, Weld Load, kgf, ASTM D2596
|
400
|
Four-Ball Wear Test, Scar Diameter, mm, ASTM D2266
|
0.5
|
Flow Pressure at -20C, mbar, DIN 51805
|
900
|
Water Washout, Loss @ 79 C, wt%, ASTM D1264
|
1
|
Base Oil Viscosity of Greases @ 40 C, mm2/s, AMS 1697
|
460
|
Color, Visual
|
Green
|
Texture, VISUAL
|
Smooth and Tacky
|
Dropping Point, °C, ASTM D2265
|
255
|
Penetration, 60X, 0.1 mm, ASTM D217
|
325
|
Applications
Suitable for medium to slow speed moving plain or roller bearings exposed to high temperatures, severe load and shock loading in the following industrial applications:
Steel mill continuous casters & roll mills
Wood pellet mills
Cement, Glass, Mining, Chemical plants equipment