Product Code: GHD
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.
APPLICATIONS OR REQUIREMENTS
- GHD (#2) Cincinnati Milicron P-62 Spec.
- GHD (#2) Mack MG-C
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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 Grease in grade #2 is recommended for use in manual or automatic
lubricating systems. 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.
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 and 16-oz. tubs.
Synthetic GHD
Grease - Typical Technical Properties
Revised 03/03 |
| Synthetic GHD Grease |
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 |
| Disc brake wheel bearing specifications
Ford ESA-M1C 198A
Chrysler MS-3701 |
yes
yes |
NR
NR |
| Oil viscosity:
40°C [104°F], cSt
100°C [212°F], cSt |
151
19.2 |
NR
NR |
| Flash point, °F[°C] - ASTM 92 |
470[243] |
NR |
| Color |
purple/black |
NR |
| Texture |
smooth |
NR |
| NA: Not applicable |
| NR: Not required for NLGI GC-LB labeling |
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