Caterpillar Special Purpose Grease - Venequip

TOOLS & SUPPLIES
Caterpillar Special Purpose Grease
Application
A Caterpillar Special Purpose Grease (SPG) is designed to provide excellent
lubrication of Caterpillar ball and roller bearings operating over a broad
temperature range. It is particularly outstanding at high speeds (10,000 rpm
and greater) and high temperatures 150°C (300°F) or higher, and under moist
conditions, especially where there is a possibility of salt water entering the
bearings. SPG performs satisfactorily in bearings in temperatures as low as
-30°C (-22°F). The outstanding performance of the grease is due, to a large
extent, to the synthetic thickener and to the corrosion inhibitors used in its
formulation. Caterpillar SPG will outperform most other greases in the
following applications:
• Sealed for life ball bearings.
• Unsealed bearings on automotive alternators.
Recommended use
Recommended for Caterpillar high
temperature antifriction bearings in
such applications as electric motors,
alternators, fan drives, starters and
generators.
• Bearings on air conditioning units in homes and other buildings.
• Unsealed electric motor bearings operating under moist conditions.
It can also be used in automotive
and industrial applications,
particularly where equipment
is operated intermittently in
severe conditions.

TOOLS & SUPPLIES
Caterpillar Special Purpose Grease
Typical Characteristics*
NLGI Grade 2
Composition:
Thickener Type
Polyurea, an ashless organic compound
Thickener, % 7.5%
Oil Properties: Vis @ 40°C, cSt (ASTM D445) 110
Viscosity Index (ASTM D2270) 90
High Temperature Performance:
Dropping Point, °C (°F) (ASTM D2265) 243°C (470° F)
Bearing Life, Hours (ASTM D3336) 150° (300°F) 10,000 rpm 3,000
177° (350°F) 10,000 rpm (heat treated bearings) 500
Operating Temperature Range:
Texture:
Color:
Compatibility:
Although laboratory data indicates that this grease is compatible with
sodium and lithium greases when mixed, under actual performance
conditions they may not be compatible.
-30°C (-22°F) to 175°C (347°F)
smooth, buttery
blue-green
Rust Protection and Water Resistance: Rust Test (ASTM D1743) Passed
Rust Test (salt water)**
Passed
Stability:
Oil Separation, Percent: 24 hrs @ 25°C (77°F) (ASTM D1742) 0.5
30 hrs @ 100°C (212°F) (*FTM321) 1.0
Work Stability: Penetration after 100,000 strokes (ASTM D217) 380
Storage Stability: 6 mos. @ 37.8°C (100°F) Worked Penetration (ASTM D217) 285
Miscellaneous Properties:
Penetration: (ASTM D217) mm Undisturbed 195
60 Strokes Worked 265
Copper Corrosion: (*FTM5309)
Passed
Dirt Count, Particles/CC: (*FTM3305) 10 microns + 560
25 microns + 140
50 microns + 35
75 microns + 0
Rubber Swell: (*FTM3603) 9
* Federal test method standard no. 791a.
** ASTM D1743 procedure except for the use of 5% synthetic sea water (ASTM D665) and 95% distilled water, storing bearings one day at 52° (125°F).
NOTE: The values shown are typical values and should not be used as quality control parameters to either accept or reject product.
Specifications subject to change without notice.
NEHP6015
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