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Extreme Pressure Gear Oils
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Product Code: SC
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AMSOIL SG Series Extreme Pressure Gear Oils are
long-life, extended drain premium gear oils. AMSOIL SG Oils
incorporate the highest quality shear-stable, synthetic fluids,
resulting in extended operational temperature ranges and superior
hydrolytic stability and thermal oxidative resistance. AMSOIL
Synthetic SG Series Extreme Pressure Gear Oils are the primary
recommendation for gear applications requiring an extreme pressure
lubricant.
Package sizes include:
- 5-Gallon Pail
- 55-Gallon Drum
- 275-Gallon Tote
Allow two to four weeks for delivery.
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Performance Features
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Superior film strength, EP and antiwear
protection
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Outstanding thermal, oxidation and
hydrolytic stability
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Excellent demulsibility
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Positive seal and petroleum oil
compatibility
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Excellent rust, corrosion and foam
prevention
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Excellent wear and shock loading
protection
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Extended oil drain intervals
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Unbeatable cold-temperatur performance
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Base Stock Technology AMSOIL's SG Oils are
compatible with mineral gear oils, synthetic gear oils*, and
seals-making them easy to use. They preserve new seals, prevent
leaks, and help rejuvenate old, brittle seals.
AMSOIL SG synthetic base stocks are
inherently resistant to oxidation, helping provide long life. The
naturally high viscosity indices, low pour points, and lack of
paraffins (wax) make these lubricants ideal for use in wide
operating temperature ranges. At low operating temperatures
equipment starts easier, is not starved of lubrication from
channeling and product solidification, and the need for sump heaters
is reduced. At higher operating temperatures, AMSOIL SG base oils
resist the degradative effects of oxidation that cause poor
lubricant performance, and they maintain an optimal lubricating film
between parts.
The base oils utilized are also
hydrolytically stable and they readily separate from water. This
prevents unwanted oil/water emulsions that have poor lubricating
properties and it eases water removal from the sump.
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Additive Performance
AMSOIL SG Oils are fully formulated with sulphur/phosphorous extreme
pressure additives, antioxidants, rust inhibitors, and anti-foam
agents. The SG Oil's thermally stable, extreme-pressure additive
system forms a hard, iron-sulfide coating on metal components. This
iron-sulfide coating prevents metal to metal contact under boundary
lubrication conditions, reduces friction and protects components
against shock loading and wear. The anti-oxidants increase the
oxidation resistance of the synthetic base oils for long, clean
lubricant performance. These oils protect against rust from water or
process contaminants and prevent foaming, ensuring proper
lubrication.
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Applications & Requirements
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U.S. Steel 224
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AGMA 250.04
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AGMA 9005-D-94
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DIN 51517 Part 3
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David Brown ET 33/80, 51, 53 and 101
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Cincinnati Milicron P-35, P-59, P-63,
P-74, P-76, P-77 and P-78
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Application Recommendation
AMSOIL Synthetic SG Series Extreme Pressure
Gear Oils are recommended for industrial applications operating
under heavy loads and shock conditions and specifying an extreme
pressure lubricant. This includes, but is not limited to, enclosed
industrial spur, bevel, herringbone, helical and worm gear**, chain
drives, sprockets and most metal-on-metal systems requiring extreme
pressure additives. These lubricants are excellent for use in severe
operating conditions and their synthetic properties make them good
all-season lubricants.
The SG Series Gear Oils meet the AGMA ratings
for synthetic gear oils and EP gear oils and are recommended for use
in applications specifying these standards. Although AMSOIL SG
Series Oils are compatible with mineral oil based lubricants, for
optimum performance it is recommended that the system be thoroughly
drained and, if warranted, cleaned.
The ability of AMSOIL SG Series Gear Oils to
extend drain intervals is subject to operating conditions and
maintenance practices. Monitoring by oil analysis is recommended.
NOTES:
* AMSOIL SG Series Gear Oils, as well as other
synthetic or mineral based oils, are not compatible with poly
glycol-type gear oils. Thorough flushing prior to changeover is
required.
** AMSOIL SG Series Gear Oils are not
recommended for use in worm gear or yellow metal containing
applications operating at or above 200°F (93°C). Also not
recommended for use in other applications operating at or above
250°F (171°C). For such applications, please consult your AMSOIL
Dealer or AMSOIL Inc.
AMSOIL SG Gear Oils are not recommended for
automotive hypoid gear applications.
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Typical
Technical Properties |
Synthetic SG
Series Gear Oils |
SGH ISO 32 |
SGI ISO 46 |
SGJ ISO 68 |
SGK ISO 100 |
SGL ISO 150 |
AGMA EP Gear |
- |
- |
2 EP |
3 EP |
4 EP |
AGMA Synthetic Gear |
0S |
1S |
2S |
3S |
4S |
ISO VG - ASTM D-2422 |
32 |
46 |
68 |
100 |
150 |
VK 100°C - ASTM D-445 |
6.09 |
7.52 |
10.24 |
13.52 |
17.82 |
VK 40°C - ASTM D-445 |
33.50 |
44.75 |
68.85 |
100.79 |
149.78 |
Viscosity Index - ASTM
D-2270 |
130 |
134 |
134 |
134 |
132 |
SPGR - ASTM D-1298 |
0.8443 |
0.8478 |
0.8534 |
0.8591 |
0.8654 |
Density - ASTM D-1298 |
7.031 |
7.060 |
7.107 |
7.155 |
7.207 |
Flash Point °C (°F)
- ASTM D-92 |
256 (493) |
256 (493) |
260 (500) |
246 (475) |
248 (478) |
Fire Point °C (°F)
- ASTM D-92 |
272 (522) |
272 (522) |
284 (543) |
276 (529) |
282 (540) |
Pour Point °C (°F)
- ASTM D-97 |
-53 (-63) |
-53 (-63) |
-48 (-54) |
-45 (-49) |
-42 (-44) |
Noack - DIN 51581 |
6.48% |
5.77% |
5.09% |
5.41% |
5.59% |
Four-Ball Wear Test - (40
kg, 1200 rpm, 75°C, 60 min.) ASTM D-4172 Mod. |
0.45 |
0.43 |
0.43 |
0.41 |
0.35 |
Copper Strip Corrosion Test
- ASTM D-130 121°C (250°F), 3 hrs. |
1B |
1B |
1B |
1B |
1B |
Timken OK Load, EP - ASTM
D-2782 |
75 lbs. |
75 lbs. |
75 lbs. |
75 lbs. |
75 lbs. |
Four-Ball EP
ASTM D-2783 - Weld Point, Kg Load Wear Index, Kgf |
315 60 |
315 60 |
315 60 |
315 60 |
315 60 |
FZG, Passed Stage ASTM D5182 |
12 |
12 |
12 |
12 |
12 |
Channel Point @ -40°C
(-40°F) - FTM 3456.2 |
Non Channeling
(All ISO Grades) |
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