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The AMSOIL Online Product Application Guide
gives you access to 25 years of vehicle data.
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PRODUCT
DESCRIPTION
AMSOIL GHD Extreme Pressure
grease is qualified against the highest grease
standard, NLGI GC (wheel bearing) and LB
(chassis), and is designed for heavy duty
applications. This grease is 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 GHD Grease is 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 GHD grease adheres
to metal and is 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
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. When operating at
elevated temperatures, frequent regreasing may be
required.
AMSOIL GH Lithium Complex Grease
is 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.
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 GHD Grease is
available in 14-oz. cartridges, 16-oz. tubs,
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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Synthetic GHD Grease - Typical Technical
Properties |
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GHD |
NLGI GC/LB |
| Thickener |
lithium
complex |
NR |
| Fortified
with moly compound |
yes |
NR |
| NLGI
consistency grade |
2 |
NR |
| NLGI
performance grade |
GC-LB |
NR |
| Penetration -
ASTM D 217 (25°C [77°F], 0.1 mm) worked 60
strokes |
265-295 |
220-340 min |
| Dropping point,
°F[°C] - ASTM D2265 |
550[288] |
428[220] min |
| High
temperature life, hours - ASTM D 3527 |
160 |
80 min |
| Oxidation
stability, psi - ASTM D 942 (100 hr/300 hr) |
0/3 max |
NR |
| Water washout,
percent - ASTM D 1264 |
1.8 |
15 max |
| Rust and
corrosion - ASTM D 1743 |
pass |
pass |
| Oil separation,
percent loss - ASTM D 1742 (24 hours, 25°C
[77°F] |
1.1 |
6.0 max |
| Leakage, g lost
- ASTM D 4290 |
1.0 |
10 max |
| Four ball wear
test, mm scar - ASTM D 2266 |
0.40 |
0.60 max |
| Fretting wear,
mg - ASTM D 4170 |
3.4 |
10 max |
| Four ball EP,
kgf - ASTM D 2596
Weld point
Load wear index |
400
68 |
200 min
30 min |
| Timken OK load
test, lbs - ASTM D 2509 |
70 |
NR |
| Low temperature
torque, N*m - ASTM D 4693 (-40°C [-40°F]) |
1.3 |
15.5 max |
| LT-37
pumpability, g/min (60°F/0°F [16°C/-18°C]) |
350/9 |
NR |
| Copper
corrosion - ASTM D 4048 |
1B |
NR |
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Disc brake wheel bearing specifications
Ford ESA-M1C 198A
Chrysler MS-3701 |
yes
yes |
NR
NR |
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Oil viscosity:
40°C [104°F], cSt
100°C [212°F], cSt
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151
19.2 |
NR
NR |
| Flash point,
°F[°C] - ASTM 92 |
470[243] |
NR |
| Color |
purple/black |
NR |
| Texture |
smooth |
NR |
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NA: Not applicable |
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NR: Not required for NLGI GC-LB labeling |
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