Bearings for Extreme High Temperatures

Many bearing materials claim to be high temperature performers, but on closer inspection, they can't perform in the temperatures required for ovens, furnaces, and more. But Graphite-metal alloys are true high temperature performers, with the ability to reach temperatures of 750°F (400°C) and higher. This material is used in steel mills, food ovens, heat treat furnaces, molten sulfur pumps, roasters, and more, due to its ability to handle extreme heat and stay self-lubricating. Learn more about how graphite-metal alloys can help your high temperature bearing application.

Graphite for Seals

GRAPHITAR® carbon is an ideal material for use as a sliding face within a mechanical seal configuration, operating successfully against counterfaces in materials such as Silicon Carbide , Tungsten Carbide and other ceramics. GRAPHITAR is a very hard material and extremely resistant to wear. It is lubricated by most fluids so that the medium being sealed can serve as the seal lubricant. GRAPHITAR’s permeability can be controlled to allow the lubricating medium to be metered to the sealing surface or to be impervious and fully “Leak Tight” to 6 BAR pressure of nitrogen.

Submerged Bearings

Many tough applications run completely underwater, partially submerged, or with washdowns. Often in these applications, caustics are also an issue. Therefore, it is important to have a bearing material that is dimensionally stable, can handle caustics, and can provide lubrication in various environments. Graphite-metal alloy bearings can be a solution here. Learn more about submerged bearings here.

Nickel-Impregnated Graphite Bushings

Nickel-impregnated graphite bushings can handle temperatures of up to 750°F/400°C in oxidizing environments and 1700°F/725°C in non-oxidizing/submerged environments, as well as handle low lubricity service and run-dry scenarios. This makes them a good match for pumps in tough services. Learn more here.

Graphite-Metal Alloy Bearings For Ovens

Oven Bearings generally present a two-part problem: high temperatures cook out bearing lubricants, and they are in tough-to-reach locations that make re-greasing difficult. Graphite-metal alloy bearings solve these problems using a maintenance-free, self-lubricating material. There are even FDA Acceptable graphite-metal alloy bearings available. Find out more about high temperature oven bearings here.

Graphite for Mechanical Seals

Typically seals require a harder carbon graphite. Here you can find information on material for seals.

Graphite-Metal Alloy Bushings for CO2 Pumps

Countries such as Brazil are increasingly reinjecting CO2 to meet carbon reduction goals, as can be read about in this Reuters Article. But pumping CO2 is no easy task. It is a low lubricity service, with a high possibility of flashing. Using a wear part material that is self-lubricating and non-galling to allow for low lubricity and flashing is essential. Graphite-metal alloy wear parts are proven in these applications- read more.