Product Description
Mobiltemp Series greases are high performance clay-thickened products designed
for the lubrication of plain and antifriction bearings operating at low speed
and high temperature or under cycling conditions from ambient to high
temperatures. These greases use a clay thickener, which, unlike traditional
soap thickeners, do not soften at high temperatures. They are based on a high
quality, high viscosity mineral oil and are specially formulated to provide:
low volatility and excellent resistance to oxidation at high temperatures,
resistance to water washout and good anti-wear performance under heavy loads
and low speeds. Mobiltemp 1 and 78 are NLGI Grade 1 greases, and Mobiltemp 2
is an NLGI 2 Grade. Mobiltemp 78 also contains molybdenum disulphide for added
anti-wear protection.
Mobiltemp Series greases are
particularly suited for high temperature applications, and are very resistant
to water or steam contamination. These greases have excellent resistance to
changes in consistency under both high temperature and cyclic conditions of
heating and cooling. Even with severe working under such conditions, they will
not soften or harden significantly. Because they use low volatility base oils,
these greases resist hardening when the grease is held at high temperatures
for long periods. Mobiltemp Series greases have excellent resistance to water
washing and, under humid conditions, can absorb about its own weight of water
without any major change in structure or consistency. Mobiltemp Series have
good flow properties and can be used with centralised grease systems down to
10ºC, even with long distribution lines. With its additional anti-wear
additization, Mobiltemp 78 is particularly suitable for the lubrication of
sliding machine elements subject to limited or slow motion or shock loading.
With their excellent track record of superior performance in critical high
temperature applications, Mobiltemp Series greases have become the products of
choice for users around the world.
Features and Benefits
The Mobil brand of greases is well known and highly regarded worldwide based
on their outstanding performance and the RandD expertise and the global
technical support that stand behind the brand. The highly versatile
performance of one series of lubricants in this family, the Mobiltemp Series,
has made them the choice of many users around the world.
Mobiltemp Series greases enjoy an excellent reputation in the lubrication of
high temperature applications where conventional soap thickened products are
not viable. Close contacts with Original Equipment Manufacturers (OEMs) and
end-users ensure that products such as the Mobiltemp Series will be available
to meet critical application needs. The Mobil brand of greases is well known
and highly regarded worldwide based on its outstanding performance and the RandD
expertise and the global technical support that stand behind the brand.
Mobiltemp Series greases were designed specifically for difficult, high
temperature applications, and offer the following advantages and potential
benefits.
Features
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Advantages and Potential Benefits
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Excellent protection against wear at high temperatures
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Reduced downtime and maintenance costs
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Will not soften and leak from bearings
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Extended intervals between relubrication
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Very good resistance to water washout and steam
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Maintains bearing protection and keeps equipment running even with gross water
contamination
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High stability under high temperature environments and temperature cycling
conditions
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Long product life under arduous conditions. Resists grease hardening
and "frozen" bearings
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Very good anti-wear properties
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Protects equipment, even at low speed and under shock load, and reduces
unexpected downtime
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Good low temperature properties
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Effective low temperature dispensing and machine start up
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Applications
Mobiltemp 1 and Mobiltemp 2 are recommended for the lubrication of plain and
antifriction bearings or sliding machine elements in applications operating at
low speeds and high temperatures or under cycling conditions from ambient to
high temperatures. The grease will not soften and leak under high temperature
conditions or harden excessively on cooling. The recommended operating
temperature range is 0 to 170º C, with even higher temperatures for short
periods, with appropriate relubrication intervals. Mobiltemp 78 is recommended
for similar applications to Mobiltemp 1 but the presence of molybdenum
disulphide makes it particularly suitable for the lubrication of sliding
machine elements subject to long relubrication intervals, limited motion or
shock loading. The recommended operating temperature range is 0 to 170º C.
Specific applications for Mobiltemp greases include:
- Oven conveyor chain bearings
- Kiln car wheel bearings
- Glass manufacture conveyer belt roller bearings
- Cams, ways and other sliding machine elements (especially Mobiltemp 78)
Typical Properties

Mobiltemp Series
| 
Mobiltemp 1
| 
Mobiltemp 2
| 
Mobiltemp 78
|
| NLGI Grade | 1 | 2 | 1 |
| Thickener Type | Clay | Clay | Clay |
| Color, Visual | Amber | Amber | Gray-Black |
| Penetration, Worked, 25º C, ASTM D 217 | 325 | 280 | 325 |
| Dropping Point, ºC, ASTM D 2265 | 300 | 300 | 300 |
| Viscosity of Oil, ASTM D 445 cSt @ 40º C | 460 | 460 | 460 |
| cSt @ 100º C | 31.7 | 31.7 | 31.7 |
| Four Ball Wear, ASTM D 2266 Scar, mm | 0.5 | 0.5 | 0.5 |
| Four Ball EP, ASTM D 2596 | | | |
| Weld Load, kg | 200 | 200 | 200 |
| Load Wear Index, kgf | 50 | 50 | 50 |
| Copper Strip Corrosion, ASTM D 4048 | 1A | 1A | 1A |
| Wet Roll Stability, ASTM D 1831 Mod., Penetration change, 0.1 mm | -60 | -60 | -60 |
| Penetration Change, ASTM D 217, 60X to 100000X, mm/10 | +50 | +50 | +50 |
Health and Safety
Based on available information, this product is not expected to produce
adverse effects on health when used for the intended application and the
recommendations provided in the Material Safety Data Sheet (MSDS) are
followed. MSDS's are available upon request through your sales contract
office, or via the Internet. This product should not be used for purposes
other than its intended use. If disposing of used product, take care to
protect the environment.
The Mobil logotype, the Pegasus design, and Mobiltemp are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.
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