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Synthetic GH Series Heavy-Duty EP Grease
Extreme-pressure, moly-fortified. Provides outstanding protection for
four wheel drive steering knuckles, spring shackles and other
components operating in high-load, low-speed conditions. Product
Code: GHB, GHD
To request a free product catalog.
For Pricing or to order call Toll Free
1-800-956-5695
Use your Customer # 327600
|
PRODUCT DESCRIPTION
AMSOIL GH Series Extreme Pressure greases are qualified against the
highest grease standard, NLGI GC (wheel bearing) and LB (chassis), and
are designed for heavy duty applications. These greases are composed of
synthetic base oils and lithium-complex thickeners that provide the
film strength, shear resistance, and mechanical stability critical to
high load protection. This combination excels in high and low operating
temperature ranges by providing excellent oxidation stability, high
temperature dropping points, good low temperature torque values and
good low temperature pumping capabilities.
The GH Greases are compounded with oxidation and corrosion inhibitors,
effective oil soluble EP additives and molybdenum disulfide (moly)
solid EP additives for all around protection in severe conditions.
The presence of moly provides an extra measure of protection in
shock
loading situations common in both construction and agricultural use.
During
heavy shock loading, the lubricant film between metal surfaces can be
temporarily ruptured, but moly remains intact to prevent metal to metal
contact which could cause equipment damage. Moly also assists in dirty
environments or
when proper re-greasing intervals are not followed.
AMSOIL's top performing lithium complex thickener system provides
excellent water resistance as identified by the ASTM D-1264 water
washout test. Therefore, even in wet conditions a lubricant film
remains present to protect equipment against wear while the corrosion
inhibitors prevent rust. AMSOIL GH greases adhere to metal and are
shear stable during severe mechanical activity.
These features mean the grease does not thin during operation, but
rather
it maintains its consistency and stays in place to provide good
lubrication.
PERFORMANCE FEATURES
- Moly Fortified for added EP protection
- Adhesive and Shear Stable - prevents squeeze out
- High dropping point (exceeds 500ºF)
- Excellent water-washout resistance
- Oxidation and corrosion inhibited
APPLICATIONS OR REQUIREMENTS
- GHB (#1) & GHD (#2) ASTM D-4950 (NLGI) Service GC/LB
- GHB (#1) Cincinnati Milicron P-72 Spec.
- GHD (#2) Cincinnati Milicron P-62 Spec.
- GHD (#2) Mack MG-C
APPLICATION RECOMMENDATION
AMSOIL GH Greases in grades #1 and #2 are recommended for use in manual
or automatic lubricating systems. NLGI #1 (GHB) greases have better
mobility and are the preferred choice for colder applications, for
automatic lubrication systems with long pumping runs, and for gear box
applications (where recommended by manufacturer). NLGI #2 (GHD) is the
preferred choice for medium to high ambient temperatures, sleeve type
bushings, high shock loading environments, high water environments, and
is the primary choice for wheel bearings.
The correct consistency grade of AMSOIL GH EP Moly Greases are
recommended for use in heavy and light duty applications found in
manufacturing plants, automotive applications, agricultural equipment
and construction equipment. These include, but are not limited to,
roller bearings, plain bearings,
gears, bushings, thrust bearings, wheel bearings, chassis lubrication,
universal joints, ball joints, tie-rod ends, steering knuckles, and
heavily loaded pivot
pins on mining and off road equipment such as power shovels, draglines,
wheel
and back hoe loaders, excavators and bulldozers. AMSOIL GH greases are
suitable
for use up to 325º F continuous operation and 350º F
intermittent
service. When operating at elevated temperatures, frequent regreasing
may
be required.
AMSOIL GH Lithium Complex Greases are compatible with many other
types of grease. However, it is recommended that when changing greases,
the equipment be cleaned of the old grease when possible or flushed
with a liberal amount of the GL grease while the mechanism is in
operation. Closely monitor the system for any inconsistencies. Any
grease compatibility questions should be referred to your AMSOIL
representative or AMSOIL INC.
TYPICAL TECHNICAL PROPERTIES
|
Typical Technical
Properties
|
|
Revised 6/01
|
| Synthetic GH Series
Grease |
GHB |
GHD |
NLGI
GC/LB |
| Thickener |
lithium
complex |
lithium
complex |
NR |
| Fortified with moly
compound |
yes |
yes |
NR |
| NLGI consistency grade |
1 |
2 |
NR |
| NLGI performance grade |
GC-LB |
GC-LB |
NR |
| Penetration - ASTM D 217
(25°C
[77°F], 0.1 mm) worked 60 strokes |
310-340 |
265-295 |
220-340 min |
| Dropping point,
°F[°C]
- ASTM D2265 |
500[260] |
550[288] |
428[220] min |
| High temperature life, hours
-
ASTM D 3527 |
140 |
160 |
80 min |
| Oxidation stability, psi -
ASTM
D 942 (100 hr/300 hr) |
0/5 max |
0/3 max |
NR |
| Water washout, percent -
ASTM
D 1264 |
6.0 |
1.8 |
15 max |
| Rust and corrosion - ASTM D
1743 |
pass |
pass |
pass |
| Oil separation, percent loss
-
ASTM D 1742 (24 hours, 25°C [77°F] |
3.3 |
1.1 |
6.0 max |
| Leakage, g lost - ASTM D 4290 |
6.0 |
1.0 |
10 max |
| Four ball wear test, mm scar
-
ASTM D 2266 |
0.40 |
0.40 |
0.60 max |
| Fretting wear, mg - ASTM D
4170 |
3.5 |
3.4 |
10 max |
| Four ball EP, kgf - ASTM D
2596
Weld point
Load wear index
|
400
65
|
400
68
|
200 min
30 min
|
| Timken OK load test, lbs -
ASTM
D 2509 |
70 |
70 |
NR |
| Low temperature torque, N*m
-
ASTM D 4693 (-40°C [-40°F]) |
0.50 |
1.3 |
15.5 max |
| LT-37 pumpability, g/min
(60°F/0°F
[16°C/-18°C]) |
840/26 |
350/9 |
NR |
| Copper corrosion - ASTM D
4048 |
1B |
1B |
NR |
| Disc brake
wheel
bearing specifications
Ford ESA-M1C 198A
Chrysler MS-3701
|
NA
NA
|
yes
yes
|
NR
NR
|
| Oil viscosity:
40°C [104°F], cSt
100°C [212°F], cSt
|
151
19.2
|
151
19.2
|
NR
NR
|
| Flash point, °F[°C]
-
ASTM 92 |
470[243] |
470[243] |
NR |
| Color |
purple/black |
purple/black |
NR |
| Texture |
smooth |
smooth |
NR |
| NA: Not
applicable |
| NR: Not
required
for NLGI GC-LB labeling |
|
|
|
|
APPLICATION MAINTENANCE
Maintaining a clean work environment is important when equipment
greasing is performed. Wipe grease fittings clean prior to injecting
grease to prevent contaminant ingestion. Maintain bearing housings
one-third to one-half full of grease. Do not over-grease as excessive
heat buildup can result. Supplement standard grease maintenance by
periodically cleaning and packing housings with fresh grease on an
established maintenance schedule.
AMSOIL PRODUCT AVAILABILITY
AMSOIL GH Series Greases are available in 14-oz. cartridges, 16-oz.
tubs (GHD only), 35-lb. pails, 120-lb. kegs and 400-lb. drums.
AMSOIL Industrial Lubricants are stocked in Superior, Wisconsin and
in select regional distribution centers throughout the United States
and Canada. AMSOIL will stock additional quantities of lubricants or
special order products based on customer requests and regional demands.
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