Mobilith SHC PM Series
Grease
Product DescriptionMobilith SHC PM greases performance products designed specifically for severe paper machine applications, including extreme temperature environments and exposure to different of water. Mobilith SHC PM greases combine the unique features of a synthetic base fluid with those of a high quality lithium complex thickener. The wax-free nature of the synthetic base fluidlow temperature pumpability and low starting and running torque compared to non-synthetic oil products of the same viscosity. The highthe synthetic base fluid ensures excellent film protection at high temperatures. The lithium complex excellent adhesion, structural stability and resistance to water. These properties are complemented by a enhance water resistance properties. Mobilith SHC PM 220 and Mobilith SHC PM 460 are both NLGI grade 1.5 with base fluids of ISO VG 220 and 460, respectively.
Mobilith SHC PM greases are designed for use in the most critical rolling element bearing applications in paper machines. They provide outstanding protection against rust and typical acid and alkaand excellent oxidation stability of the PAO base stock ensures excellent service at high temperatures typical of dry end conditions.
The Mobilith SHC PM series has become the technology of choice for mill operators, worldwide. Their reputation is based on exceptional quality, reliability and the proven performance benefits they deliver.
Features and BenefitsThe Mobil SHC brand of oils and greases are recognized and appreciated around the world for their innovation and outstanding performance. The Mobilith SHC series symbolizes 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 fromto 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 oxidativeenhance Mobilith SHC PM greases to meet the needs of modern and future paper machines. Mobilith SHC PM greases offer the following features and benefits:
| Outstanding high temperature and low temperature performance | Wide 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 water | Reduced downtime and maintenance costs because of reduced wear, rust and corrosion even in acidic and alkaline water environments |
| Excellent structural stability and oxidation resistance | Extended service life with longer intervals between relubrication and improved bearing life |
| Excellent wear protection under heavy loads, slow speeds, and high temperatures | Outstanding protection of slow speed, heavily loaded bearings, with extended bearing life |
| Outstanding structural stability in the presence of water | Retains excellent grease performance in hostile aqueous environments |
| Low volatility | Helps 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.
| DIN 51825: (2004-06) | KPHC1-2N-40 | KPHC1-2N-40 |
| NLGI Grade | 1.5 | 1.5 |
| Thickener Type | Lithium Complex | Lithium Complex |
| Color, Visual | Off-White | Off-White |
| Penetration, Worked, 25 C, ASTM D 217 | 305 | 305 |
| Dropping Point. C, ASTM D 2265 | 275 | 275 |
| Viscosity of Oil, ASTM D 445, cSt @ 40 C | 220 | 460 |
| 4-Ball Wear, ASTMD 2266, Scar, mm | 0.5 | 0.5 |
| 4-Ball Weld Load, ASTM D 2596, kg | 250 | 250 |
| Timken OK Load, ASTM D 2509, lbs | 65 | 65 |
| Roll Stability, ASTM D 1831, % Change | -5 to +5 | -5 to +5 |
| Water Washout, ASTM D 1264, 79 C, % Loss | 2 | 3 |
| Rust Test, ASTM D 1743, Rating | PASS | PASS |
| Copper Corrosion, ASTM D 4048, Rating | 1A | 1A |
| EMCOR Rust Test, ASTM D 6138, Distilled Water, Rating | 0/0 | 0/0 |
| EMCOR Rust Test, ASTMD 6138, Acid Water pH 4.5, Rating | 0/0 | 0/0 |
| EMCOR Rust Test, ASTM D 6138, Alkaline Water pH 12.0, Rating | 0/0 | 0/0 |
| Oil Separation, ASTM D 1742, 0.25 psi, 24 hours @ 25 C, % Wt. Loss | 3 | 3 |
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