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Castrol Molub-Alloy 777-2 NG
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CASTROL Molub-Alloy 777-2 NG
Greases
Application CASTROL Molub-Alloy 777-2 NG
Typical applications are in all types of rolling and sliding bearings, spindles, joint couplings (except for high-speed precision couplings), running gears, cams and general grease lubricating points, especially where heavy loads and low speeds prevail. MOLUB ALLOY® 777 NG greases are especially suited for the lubrication of heavy machines e.g. forging presses or hauling machines. Due to the extremely stable lubricating film, supported by the solid lubricant combination in the mixed friction area as well as the excellent sealing effect, a quantity reduction and an improved lubricating condition ca be ensured.
Your advantage! Price of CASTROL Molub-Alloy 777-2 NG drops automatically in larger quantities.
Performance, Features & Benefits of CASTROL Molub-Alloy 777-2 NG are:
- Due to their good adhesion these greases provide an optimum sealing effect.
- The MOLUB-ALLOY® solid lubricants achieve reduced friction in the boundary and mixed friction areas. This is most evident during frequent start-ups, low speeds and/or high loads as well as shock loads.
- Overall savings are derived from the above which in turn result in less repair work and downtime, longer service life of components and extended lubrication intervals.
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Product Description CASTROL Molub-Alloy 777-2 NG
MOLUB ALLOY® 777 NG greases were designed for very heavy-duty service under severe ambient conditions. They are blended and compounded to withstand shock loads as well as heavy loads, conditions commonly found in the steel and construction industries, in mining and forestry. MOLUB ALLOY® 777 NG greases are made with a blend of highviscosity mineral oils and polymers which produce a tough lubricating film capable of withstanding shock loads and vibrations. The shear-stable thickener provides an excellent sealing effect against contamination from the atmosphere, even if mechanical seals are damaged or missing (grease collar in the bearing). The lubricating greases contain solid lubricants whose structure is best suited for the rugged conditions in heavy industry. The solids are treated to increase their natural affinity to metal surfaces Corrosion and oxidation inhibitors maximize the corrosion protection and aging stability of the base oil. 777 NG greases are free of antimony, lead, zinc and other heavy metals.
Typical Characteristics
| Product specifications : | CASTROL Molub-Alloy 777-2 NG | |
| Color | Visual | Black |
| Type of thickener / soap | - | Lithium |
| Penetration kneaded (60 strokes @ 25°C / 77°F) 0.1 mm | ISO 2137 / ASTM D217 | 265-295 |
| Penetration kneaded (100,000 strokes @ 25°C / 77°F) - difference compared to the penetration after 60 strokes 0.1 mm |
ISO 2137 / ASTM D217 | max. 30 |
| Drip point °C | ISO 2176 / ASTM D566 | > 180 |
| Viscosity base oil @ 40°C / 104°F mm²/s | ISO 3104 / ASTM D445 | 860 |
| Viscosity base oil @ 100°C / 212°F mm²/s | ISO 3104 / ASTM D445 | 60 |
| Viscosity Index | ISO 2909 / ASTM D2270 | 94 |
| Flash point - open cup method °C | ISO 2592 / ASTM D92 | >220 |
| Water washability % wt loss | ISO 11009 / ASTM D1264 | < 5,0 |
| Water Resistance Class | DIN 51807-1 | 0 |
| Rust Test (distilled water) Complies | ASTM D1743 | Complies |
| Rust Test - EMCOR (distilled water) Class | ISO 11007 / ASTM D6138 | 0/1 |
| Copper corrosion (24 hrs,100°C / 212°F) Class | ASTM D4048 | 1 |
| Four Bullet Load Test, Cold Welding Point kgf | ISO 11008 / ASTM D2596 | typical 400 |
| Four Bullet Load Test, Cold Welding Point N | DIN 51350-4A | > 3800 |
| Four Ball Load Test - Wear Scratch Diameter (40 kgf / 75°C / 1200 rpm / 1 hr) mm |
ISO 51350 / ASTM D2266 | < 0,50 |
| Four Ball Load Test - Wear Scratch Diameter mm | DIN 51350-5E | < 1.00 |
| Flow pressure @ -20°C mBar | DIN 51805 | <700 |
| Operating temperature °C | -20 / 120 |
Additional Information
MOLUB ALLOY® 777 NG greases should not be mixed with lubricating greases which have a different thickener base. Lubrication intervals should be increased gradually to ensure complete removal of the previous lubricant and to guarantee the deposit of the solid lubricant layer at the lubricating points. The greases may be applied with a manual grease gun or via automatic dispensing systems which are suited for the given worked penetration.
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