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SF-440 A,B & C are fully formulated synthetic
lubricants specially designed for use in highly
rated worm gear units. They have an extremely
high viscosity index, low pour points and
high load carrying capacities, and show exceptionally
low coefficients of friction. Additives are
incorporated to reinforce the stability of
these oils,their resistance to corrosion and
their resistance to scuffing under unfavorable
operating conditions. These oils are capable
of extremely long service.
ADVANTAGES
SELCO SF-440 being POLYGLYCOL, and not mineral
oil based, exhibits inherently superior properties
particularly with respect to outstanding thermal
stability and lubrication performance. These
properties are particularly useful in heavily
loaded mechanisms operating at elevated temperatures
e.g. worm gears and calendar bearings.
PROVEN BENEFITS
 |
Reduced frictional
losses, leading to lower sump temperatures
and higher gear efficiency |
|
Improved
load-carrying properties and reduced
wear. |
|
Higher thermal
stability, minimal sludge and deposit
formation |
|
Inherently
higher viscosity index plus low pour
point enable equipment of operate over
a wider range of service temperature.
|
|
Reduced power
consumption arising from easier starting,
faster warm-up and lower coefficient
of friction |
APPLICATIONS
SELCO SF-440 is suitable for heavy duty
automotive and industrial gear boxes with
sump temperatures upto 140 ° C. The product
performance allows for extended drain intervals
and even, in some cases, for operation as
a "fill for life" lubricant. The
specially developed polyglycol-additive technology
of the new SELCO Synthetic Industrial Lubricants
SF-440/B and SF-440/C allows thermal stable
operation at temperatures in excess of 200°C.
These products are therefore preferred for
the lubrication of gears and bearings operating
at elevated temperatures, e.g. in calendar
equipment.
APPROVALS
|
All products
carry the latest David Brown approved
lubricants type G approvals |
|
SELCO Worm
Gear Lube SF-440 is further approved
for use in Fodder rear axles. |
|
SELCO Worm
Gear Lube SF-440 may be used in Kirkstall
worm driving heads and where other
manufacturers recommend a synthetic
product of this type.
|
|
Inherently
higher viscosity index plus low pour
point enable equipment of operate over
a wider range of service temperature.
|
|
Reduced power
consumption arising from easier starting,
faster warm-up and lower coefficient
of friction |
PROPERTIES
| |
SF-440/130 |
SF-440/220 |
SF-440/240 |
TEST METHOD |
| Viscosity
Cst at 40 ° C. |
133
|
236
|
458
|
ASTM D445
|
| Viscosity
Cst at 100 ° C. |
21
|
37
|
67
|
ASTM D445
|
| Relative
density 20/20 ° C. |
1.000
|
1.020
|
1.017
|
ASTM D1298
|
| Viscosity
Index |
184
|
210
|
223
|
ASTM D2270
|
| Flash point
° C. |
260
|
290
|
286
|
ASTM D92
|
| Pour point
° C. |
-30
|
-36
|
-33
|
ASTM D97
|
| Neutralization
value(mgKOH/g) |
0.6
|
1.07
|
1.13
|
ASTM D664
|
| FZG Test
Conditions A/8.3/90 |
Pass
Stage 12
|
Pass
Stage 12
|
Pass
Stage 12
|
IP 334
|
| A/16.6/140
|
|
Pass
Stage 12
|
Pass
Stage 12
|
IP 334
|
| Corrosion-Copper
strip classification |
1
|
1
|
1
|
ASTM D130
|
| Corrosion-Rust
prevention |
Pass
|
Pass
|
Pass
|
ASTM D665A
|
| Foam tendency/stability,
Sequence 1 |
10/0
|
10/0
|
10/0
|
ASTM D892
|
| Sequence
2 |
10/0
|
10/0
|
10/0
|
ASTM D892
|
| Sequence
3 |
10/0
|
10/0
|
10/0
|
ASTM D892
|
|
|
|
|
|
|
