Graisse pour roulements Mobil SHC

Gamme Mobilith SHC™ PM


Nos graisses synthétiques de la gamme Mobilith SHC™ PM sont conçues spécifiquement pour les applications les plus exigeantes de machines à papier d’aujourd’hui, notamment avec des températures extrêmes, une exposition à l’eau de traitement et un faible couple de démarrage.

Ces graisses synthétiques fournissent une protection remarquable contre la rouille et la corrosion due aux réactions chimiques avec l’eau acide et alcaline, ce qui fait d’elles le produit idéal pour les roulements de machines à papier en partie humide. Elles peuvent également :

  • réduire le temps d'arrêt d'une machine et les coûts de maintenance;
  • allonger la durée de vie avec des intervalles de lubrification plus longs;
  • allonger la durée de vie des roulements.

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Information sur les séries de produits

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Gamme Mobilith SHC™ PM offre 2 grades de viscosité

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Features and Benefits

The Mobil SHC brand of oils and greases is recognized and appreciated for their innovation and outstanding performance. The Mobilith SHC series symbolizes our continued commitment to using advanced technology to provide outstanding products. A key factor in the development of Mobilith SHC PM greases was the close contacts between our scientists and application specialists with key paper machine designers to ensure that our product offerings would provide exceptional performance in this continually evolving, and increasingly severe, equipment area.

Our work with equipment builders has helped confirm the results from our own laboratory tests showing the exceptional performance of the Mobilith SHC PM greases. These benefits include excellent resistance to acidic and alkaline water, enhanced bearing protection and bearing life, wide temperature range of application, and longer grease life.

To combat high thermal exposure our product formulation scientists chose proprietary synthetic base oils for Mobilith SHC PM grease because of their exceptional thermal and oxidative resistance. Our scientists developed a high performance lithium complex thickener technology and used specific additives to enhance Mobilith SHC PM greases to meet the needs of modern and future paper machines. Mobilith SHC PM greases offer the following features and benefits:

FeaturesAdvantages and Potential Benefits
Outstanding high temperature and low temperature performanceWide application temperature range, from -40ºC to 150°C with excellent protection at high temperatures and low torque, easy start-up at low temperatures
Excellent protection against wear, rust and corrosion, including acidic waterReduced downtime and maintenance costs because of reduced wear, rust and corrosion even in acidic and alkaline water environments
Excellent structural stability and oxidation resistanceExtended service life with longer intervals between relubrication and improved bearing life
Excellent wear protection under heavy loads, slow speeds, and high temperaturesOutstanding protection of slow speed, heavily loaded bearings, with extended bearing life
Outstanding structural stability in the presence of waterRetains excellent grease performance in hostile aqueous environments
Low volatilityHelps resist viscosity increase at high temperatures to maximize relubrication intervals and bearing life



Application Considerations: While Mobilith SHC PM greases are compatible with most mineral oil based products, admixture may detract from their performance. Consequently it is recommended that before changing a system to one of the Mobilith SHC PM greases, it should be thoroughly cleaned out to achieve the maximum performance benefits. If dismantling the system for cleaning before changeover isn't feasible, then thorough purging and increased relubrication intervals are strongly recommended. Contact your local ExxonMobil Lube Engineer for consultation on this approach.

Mobilith SHC PM greases are recommended for critical rolling element bearing applications in paper machines. Included among these are:

  • Wet end paper machine bearings.
  • Highly loaded press section bearings.
  • High-temperature felt roll and calendar stack bearings.


Specifications and Approvals

Mobilith SHC PM Series meets or exceeds the requirements of:PM 220PM 460
DIN 51825: (2004-06)KPHC1-2N-40KPHC1-2N-40


Typical Properties

Mobilith SHCPM 220PM 460
NLGI Grade1.51.5
Thickener TypeLithium ComplexLithium Complex
Color, VisualOff-WhiteOff-White
Penetration, Worked, 25o C, ASTM D 217305305
Dropping Point. oC, ASTM D 2265275275
Viscosity of Oil, ASTM D 445, cSt @ 40o C220460
4-Ball Wear, ASTMD 2266, Scar, mm0.50.5
4-Ball Weld Load, ASTM D 2596, kg250250
Timken OK Load, ASTM D 2509, lbs6565
Roll Stability, ASTM D 1831, % Change-5 to +5-5 to +5
Water Washout, ASTM D 1264, 79o C, % Loss23
Rust Test, ASTM D 1743, RatingPASSPASS
Copper Corrosion, ASTM D 4048, Rating1A1A
EMCOR Rust Test, ASTM D 6138, Distilled Water, Rating0/00/0
EMCOR Rust Test, ASTMD 6138, Acid Water pH 4.5, Rating0/00/0
EMCOR Rust Test, ASTM D 6138, Alkaline Water pH 12.0, Rating0/00/0
Oil Separation, ASTM D 1742, 0.25 psi, 24 hours @ 25o C, % Wt. Loss33


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.