Grease Mobil, Colombia
Supreme Performance Greases
Mobilgrease 28 is a supreme performance, high temperature, antiwear grease
designed to combine the unique features of a polyalphaolefin (PAO) synthetic
base fluid with an organo-clay (non-soap) thickener. The wax-free nature of
the synthetic base fluid, together with its low coefficient of traction
compared with mineral oils, provide excellent low temperature pumpability,
very low starting and running torque, and can reduce operating temperatures in
the load zone of rolling element bearings. The clay thickener provides
excellent stability at high temperatures and Mobilgrease 28 has a high
dropping point value of 260ºC. . In addition, it resists water washing,
provides superior load-carrying ability, reduces frictional drag, and prevents
excessive wear. Tests show that Mobilgrease 28 prevents friction oxidation
(fretting) and lubricates rolling element bearings under conditions of high
speeds and temperatures. It has also shown superior ability to lubricate
heavily loaded sliding mechanisms, such as wing flap screwjacks. Its
consistency is between an NLGI No. 1 and No. 2 grease.
Mobilgrease 28 meets the quality level of U.S. Military Specification
MIL-G-81322E, General-Purpose, Aircraft, and is approved against U.S. Military
Specification DOD-G-24508A (Navy) for shipboard auxiliary machinery. It can be
designated U.S. Military Symbol WTR and NATO Symbol G-395.
Mobilgrease 28 has been the grease of choice for military and related
applications, worldwide, for more than 30 years since its introduction. This
leading product is based on the synthesized PAO base stocks that were
pioneered by the R&D arm of our company resulting in step-out performance not
only in grease but in many fluid lubricants, too.
Mobilgrease 28 is one of the Mobil brand of PAO-based products recognized and
appreciated around the world for innovation and outstanding performance. These
molecular design synthetic products, pioneered by our research scientists,
symbolize the continuing commitment to using advanced technology to provide
outstanding products. A key factor in the development of Mobilgrease 28 is the
close contacts between our scientists and application specialists with key
OEMs to ensure that our product offerings will provide exceptional performance
in the continually evolving aviation equipment designs.Our
work with equipment builders has helped confirm the results from our own
laboratory tests showing the exceptional performance of Mobilgrease 28. A
particular need of aviation greases is the need to resist high temperature
stresses, while providing excellent starting and low torque at
low-temperature.To meet this combination of needs our product formulation
scientists chose proprietary synthetic base oils for Mobilgrease 28 because of
their exeptional thermal/oxidative resistance potential, and superb
low-temperature capability. Our formulators chose specific thickener chemistry
and a prorietary additive combination which would maximize the benefits of the
synthetic base oils.Mobilgrease 28 meets the requirements of
key military and commercial aviation specifications and has built up a superb
reputation for performance and reliability among users around the world.
Mobilgrease 28 provides the following advantages and potential benefits:
Mobilgrease 28 is designed for the lubrication of plain and rolling bearings
at low to high speeds, and splines, screws, worm gears, and other mechanisms
where high friction reduction, low wear, and low lubricant friction losses are
required. The recommended operating temperature range is -55º to 180ºC with
appropriate relubrication intervals.Mobilgrease 28 meets the
quality level of military specifications MIL-G-81322D for wide temperature
range aviation service and approved under DOD-G-24508A for shipboard service.
Specific military and civil aviation applications include:
-Landing wheel assemblies-Control systems, screwjacks, servo devices,
actuators, sealed-bearing motors and oscillating bearings-Helicopter
rotor bearings on aircraft and on naval shipboard auxiliary machinery
-It also can be used where superseded specifications MIL-G-81322 (WP),
MIL-G-7711A, MIL-G-3545B, and MIL-G-25760A may be called for
Mobilgrease 28 also is recommended for industrial lubrication, including
sealed or repackable ball and roller bearings wherever extreme temperature
conditions, high speeds, or water washing resistance are factors. Typical
industrial applications include:-Conveyor bearings-Small
alternator bearings operating at temperatures near 177ºC
-High-speed miniature ball bearings, and bearing situations where oscillatory
motion, vibration, and fretting create problems.
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 Mobilgrease are trademarks of ExxonMobil Corporation, or one of its subsidiaries.
ExxonMobil de Colombia S.A.
Calle 90 N° 21-32 , Bogota , Colombia
(571) 628 - 0460
Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit www.exxonmobil.com
ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities.