Mỡ bôi trơn chịu nhiệt Windoline 444 EP

FEATURES

 

•  Handles wide temperature  range, high speeds and heavy loads
•  Very good low temperature torque

 

COMPOSITION

•  Polyolester grease with PTFE

thickener

•  NLGI #2 Grease

 

Synthetic grease handles high speed, high load, high temperature combinations

 

APPLICATIONS

•  Advantageous in applications that experience high temperatures and extreme pressure or high speed, such as ball bearings of electrical motors, fans, calenders, presses, metal working machines, generators, utility switch contacts, spindles, dryers or other applications

 

TYPICAL PROPERTIES

Specification Writers: Please contact your local Windoline sales office or your

Global Windoline Connection before writing specifications on this product.

 

Method             Test                                                         Unit             Result Color                                Red Oil Base                           Ester

Base Oil Viscosity, at 38°C (100°F)     SUS            200

Thickener                                                                     PTFE Specific Gravity                1.01

ASTM D 217    Penetration, worked 60                           mm/10        270

Service Temperature Range, estimated   °C               -45 to 260

ASTM D 566    Dropping Point                                      °C             Not measurable

ASTM D 1264  Water Washout                                       percent       2

Fed Std 791C    Oil Separation,

24 hr at 150°C (302°F)                       percent       2.2

ASTM D 2596  Four-Ball Test, Weld Load                     kg               265

ASTM D 2266  Four-Ball Test, Wear Scar, 1 hour at

75°C (167°F), 400 N                        mm             0.87

Dn Value (shaft size of bearing in

mm x rpm), estimated                                            550,000

Almen-Wieland Machine OK Load        N                20,000

ASTM D 1478  Low Temperature Torque Test

-20°C (-4°F)                                      N•m           207 x 10 -3

-50°C (-58°F)                                    N•m           530 x 10 -3

 

ASTM D 1478  Low Temperature Torque Test, after 20 minute run                 -3

-20°C (-4°F)                                      N•m           130 x 10

-50°C (-58°F)                                    N•m           130 x 10 -3

FAG Bearing Test, angular contact thrust ball bearings

160°C (320°F), 1500 N, 6000 rpm   hours         662

DIN 51802        Corrosion Protection, SKF Emcor          rating         1-2

1

Dn values are calculated approximations and will vary widely with temperature, load and bearing type.

 

DESCRIPTION

 

Windoline 444® High Perform-ance

Synthetic Grease is a synthetic complex grease with outstanding properties including a wide temper- ature range estimated at -45 to

260°C and a high load-carrying

 

capacity. It combines the most impor-

tant properties of silicone grease (wide temperature range) and solid lubricant-containing PTFE greases (high load-carrying capacity) in an ester-based grease.