Varace Air Corporation
Products | Greases | AeroShell Grease 22

AeroShell Grease 22



 

AeroShell Grease 22 is a versatile advanced general purpose grease composed of a synthetic hydrocarbon oil thickened with Microgel®, with outstanding performance characteristics. Appropriate additives are included to achieve the necessary oxidation and corrosion resistance, anti-wear properties and load carrying properties.

The useful operating temperature range is –65°C to +204°C.

APPLICATIONS

AeroShell Grease 22 is especially recommended for use wherever severe operating conditions are encountered as in high bearing loads, high speeds, wide operating temperature range, and particularly where long grease retention and high resistance to water washout are required.

The wide range of applications include aircraft wheel bearings, engine accessories, control systems, actuators, screw-jacks, servo mechanisms and electric motors, helicopter rotor bearings, instruments, airframe lubrication, hinge pins, static joints, landing gears.

AeroShell Grease 22 contains a synthetic hydrocarbon oil and should not be used in contact with incompatible seal materials. Refer to the General Notes at the front of this section for further information.

SPECIFICATIONS

U.S. Approved MIL-PRF-81322F
NLGI Grade 2
Approved DOD-G-24508A
British Approved DEF STAN 91-52
French Approved DCSEA 395/A
Russian Analogue of CIATIM 201 and 203,
VNII NP 207, ERA (VNII NP 286M)
and ST (NK-50)
NATO Code G-395
Joint Service Designation XG-293

 

PROPERTIES MIL-PRF-81322F
NLGI Grade 2
TYPICAL
Oil type -- Synthetic Hydrocarbon
Thickener type -- Microgel
Base oil viscosity mm²/s
-40°C
at 40°C
at 100°C
 
--
--
--
 
7500
30.5
5.7
Useful operating temperature range °C -- –65 to +204
Drop point °C 232 min 260+
Worked penetration at 25°C 269 to 295 275
Unworked penetration at 25°C -- 271
Bomb oxidation pressure drop at 99°C
100 hrs MPa (psi)
500 hrs MPa (psi)
 
0.083 (12) max
0.027 (4)
 
0.172 (25) max
0.069 (10)
Oil separation at 177°C,
in 30 hrs % m
 
2.0 to 8.0
 
4.7
Water resistance test loss
at 41°C % m
 
20 max
 
0.5
Evaporation loss in 22 hrs
at 177°C % m
 
10 max
 
4.3
Antifriction Bearing Performance
at 177°C (hrs)
 
400 min
400+
Load carrying capacity/
Mean Hertz Load (kg)
 
30 min
 
45
Copper corrosion 24 hrs at 100°C Must pass Passes
Bearing protection 2 days at 52°C  
Must pass
 
Passes
Colour -- Amber