34
SKF TKGT 1
4.1 Grease shelf life / Quality
Application & lubrication conditions:
•
2 stored greases in good storage conditions.
•
Samples taken from cans after 3 years.
Greases used:
•
Grease A – Lithium / PAO - NLGI 2;
•
Grease B – Aluminum complex / PAO-Ester - NLGI 1
Nature of analysis:
Shelf life/Quality
Routine control
Damage
Grease performance
Trend analysis
Change of grease
Contamination expected
Other reasons: ..........................................................
Testing
Sample
First visual
inspection
(3.3)
Consistency test
(3.4)
Oil bleeding test
(3.5)
Contamination
test (3.6)
Fresh unused:
Grease A
White
NLGI class:
2
DAvFresh :
44
mm
SFresh :
1441
mm
2
Stored:
Grease A
Oil layer on top of
grease bulk. Grease
is strirred in the
can before to be
sampled.
After stirring
NLGI class:
2
NLGI difference:
0
DAvUsed :
44
mm
SUsed :
1441
mm
2
%Diff :
0
No
Fresh unused:
Grease B
White
NLGI class:
1
DAvFresh :
40
mm
SFresh :
1177
mm
2
Stored:
Grease B
Oil layer on top of
grease bulk. Grease
is stirred in the
can before to be
sampled.
After stirring
NLGI class:
00
NLGI difference:
-2
DAvUsed :
40
mm
SUsed :
1177
mm
2
%Diff :
0
No
Interpretation
Grease A:
Grease B:
- Mechanical properties unchanged after stirring
According to specifications
- Mechanical properties changed (softening)
Out of specifications
X
Summary of Contents for TKGT 1
Page 1: ...SKF GreaseTest Kit TKGT 1 Instructions for use...
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