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AMSOIL Synthetic GH Series Heavy-Duty EP Grease

 

NLGI #1 and #2 (Lithium Complex  -  Moly Fortified)

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 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 500F)
  • 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 325 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.

Synthetic GHB Grease - Typical Technical Properties

  GHB NLGI GC/LB
Thickener lithium complex NR
Fortified with moly compound yes NR
NLGI consistency grade 1 NR
NLGI performance grade GC-LB NR
Penetration - ASTM D 217 (25C [77F], 0.1 mm) worked 60 strokes 310-340 220-340 min
Dropping point, F[C] - ASTM D2265 500[260] 428[220] min
High temperature life, hours - ASTM D 3527 112 80 min
Oxidation stability, psi - ASTM D 942 (100 hr/300 hr) 0/5 max NR
Water washout, percent - ASTM D 1264 9.2 15 max
Rust and corrosion - ASTM D 1743 pass pass
Oil separation, percent loss - ASTM D 1742 (24 hours, 25C [77F] 3.3 6.0 max
Leakage, g lost - ASTM D 4290 <6.0 10 max
Four ball wear test, mm scar - ASTM D 2266 0.40 0.60 max
Fretting wear, mg - ASTM D 4170 3.5 10 max
Four ball EP, kgf - ASTM D 2596

Weld point

Load wear index

 

400

65

 

200 min

30 min

Timken OK load test, lbs - ASTM D 2509 70 NR
Low temperature torque, N*m - ASTM D 4693 (-40C [-40F]) 0.50 15.5 max
LT-37 pumpability, g/min (60F/0F [16C/-18C]) 750/26 NR
Copper corrosion - ASTM D 4048 1B NR
Disc brake wheel bearing specifications

Ford ESA-M1C 198A

Chrysler MS-3701

 

NA

NA

 

NR

NR

Oil viscosity:

40C [104F], cSt

100C [212F], cSt

 

130

16.5

 

NR

NR

Flash point, F[C] - ASTM 92 450[232] NR
Color purple/black NR
Texture smooth NR
NA: Not applicable
NR: Not required for NLGI GC-LB labeling

Synthetic GHD Grease - Typical Technical Properties

  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 (25C [77F], 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 118 80 min
Oxidation stability, psi - ASTM D 942 (100 hr/300 hr) 0/3 max NR
Water washout, percent - ASTM D 1264 1.6 15 max
Rust and corrosion - ASTM D 1743 pass pass
Oil separation, percent loss - ASTM D 1742 (24 hours, 25C [77F] 2.1 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 (-40C [-40F]) 5.3 15.5 max
LT-37 pumpability, g/min (60F/0F [16C/-18C]) 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:

40C [104F], cSt

100C [212F], cSt

 

130

16.5

 

NR

NR

Flash point, F[C] - ASTM 92 450[232] NR
Color purple/black NR
Texture smooth NR
NA: Not applicable
NR: Not required for NLGI GC-LB labeling
 
 
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