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Custom Bearings Aid Operations Submerged in Low Viscosity Liquids

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bearingsMetallized Carbon Corp., aka Metcar, announces the availability of custom carbon-graphite bearings, specially designed for running submerged in low viscosity liquids, such as gasoline or hot oil. The company specializes in the manufacture of oil-free, self-lubricating, carbon-graphite materials for severe service lubrication applications.

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Metcar’s carbon-graphite bearings are superior to both plastic and metallic bearings and are designed to run in applications ranging from minus-400 to 1,000 F and can handle most common liquids, like water, gasoline, hot oil, solvents, strong chemicals, molten metals, liquefied gases and beverages.

Carbon-graphite is also a self-polishing and dimensionally stable material. Shafts polished to a fine surface finish will polish the carbon-graphite material to the same fine finish, so a thin hydrodynamic film is sufficient to provide lubrication. The custom bearings, available in over 150 grades of Metcar’s proprietary carbon/graphite material, are ideal for a range of applications, including water pumps, fuel pumps, chemical pumps, heat transfer pumps, meters, mixers, submerged conveyors and many more.

Plastic or polymer bearing materials often fail in submerged applications because of their tendencies to swell, soften or deteriorate. Metallic bearings are often unsatisfactory because the hydrodynamic film provided by low viscosity liquids is not thick enough to overcome the strong atomic attraction between metal bearings and the metal shaft.

Metcar bearings for running submerged can be provided to customer print or customer approved dimensions and tolerances. They are also available shrink-fitted into metal housings or metal retaining rings.

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