Machinery Lubrication May June 2014 May June 2014 | Page 24

COVER STORY
TEST
NO.

NAME

APPLICATION

GREASE TESTS
D-2596

4-Ball EP

D-2266

4-Ball Wear

Measures film strength of
base oil
Measures wear resistance of
greases

responsibility of the new
supplier.
Removal
and
disposal of the contaminated
tank contents were also part
of their job. Of course, this
rarely needed to be done.

Measures tendency of grease
base oil to separate from soap

Figure 2 is a typical
performance specification for
Measures grease tendency to
Copper
a gear oil. A complete written
D-4048
corrode copper, bronze and
Corrosion
specification from which the
brass
Oxidation
Measures grease tendency to
summary sheet is derived is
D-942
Stability
combine with oxygen
too extensive to be reproduced
Measures the stiffness of
here. A comprehensive set of
D-217
Penetration
grease
summary sheets for several
Measures resistance of grease
types of oil and grease may be
D-1831 Roll Stability
to change stiffness after
working
obtained by contacting the
Measures resistance of grease author at tomlantz1@yahoo.
D-4049 Water Sprayoff
to resist heavy water spray
com.
D-1742

D-2509

Oil Separation

Timken Test

Measures film strength of base
oil
in grease

OIL TESTS
D-445

Viscosity

Measures an oil’s resistance
to flow (indicator of film
strength)
Measures change of viscosity
with temperature
Indicates dilution by volatile
fluids

How a Performance
Specification is
Written

While the above information
offers details on how to
Viscosity
D-2270
Index
assemble the essential data,
Flash and Fire
writing the specification is
D-92
Points
more
involved.
Plant
Lowest usable temperature
personnel often see lubricants
D-97
Pour Point
without heating
as their domain. They issue
Indicates corrosive action of
Copper
requisitions to the purchasing
D-130
an oil on copper, bronze or
Corrosion
brass
department and expect all the
Measures the ability of an