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Graphite Bearing Companies

IQS Directory provides useful search tools to find leading graphite bearing manufacturers and suppliers. Find graphite bearing companies that can design, engineer, and manufacture graphite bearing to your specifications. Peruse our website to review and discover top graphite bearing manufacturers with roll over ads and complete product descriptions. Connect with the graphite bearing companies through our hassle-free and efficient request for quote form. You are provided company profiles, website links, locations, phone numbers, product videos, and product information. Read reviews and stay informed with product new articles. Whether you are looking for manufacturers of graphite seals, carbon graphite sheets, and custom graphite molds of every type, IQS is the premier source for you.

  • Denver, PA

    We employ skilled craftsmen in every area of expertise. We have the most skilled craftsmen that can integrate all modern technology into our manufacturing techniques on graphite bearings and all other products. We offer high quality products with many advantages in machining, technology, and operators. Contact us for more info!

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  • Harvard, IL

    We take pride in our ability to develop the newest techniques when manufacturing graphite bearings. Our methods have shorter process times, consume less energy and retain nanograin micro-structure. We will constantly research the latest technologies to provide our customers with ideal solutions. Feel free to visit our website to learn more information about our company! We look forward to hearing from you!

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  • Bethel Park, PA

    The graphite products at Ameri-Source are manufactured to customer specifications, using the best Calcined Petroleum Coke. Our graphite blocks are manufactured to customer specifications and our prices are the most competitive in the industry. We also manufacture graphite electrodes which are best suitable for low and medium capacity arc and ladle furnaces. Call us today for more information!

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  • Maywood, IL

    There are many advantages for selecting graphite opposed to other materials. Graphite is incredibility durable with built-in lubrication and is unaffected by nearly all types of acids. This is why you can trust our graphite bearings to handle all sorts of applications. Our extra strength graphite bearings can be improved with resins and impregnated metals. These products can handle heavy loads, high RPM and extreme temperatures. For more information check out our website!

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  • Valley Cottage, NY

    We offer high-purity graphite which is of use to engineers and scientists conducting basic research or applied product development. Our Graphi-Coat&#8482 ceramic coating protects graphite from oxidation up to a Fahrenheit temperature of 2000 degrees.

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  • More Graphite Bearings Companies

businessIndustry Information

Graphite Bearings

Graphite bearings are used in bearing system applications where external lubricants cannot be used due to sanitary reasons, or to prevent the risk of contamination. Bearings are simple parts that are used to reduce friction when placed between two moving parts and are often applied with traditional lubricants to decrease friction. However, there are certain situations when lubricants cannot be used and in these instances, bearings made of graphite are used because they are self-lubricating.

Graphite is naturally a greasy mineral, and does not require any additional fluids to reduce friction when used as a bearing. It also has an extreme temperature resistance, more than any metal, and is able to maintain its structure and shape even in temperatures up to 5000°F. Therefore, machined graphite is commonly used in high heat environments, where oil, grease and metals tend to oxidize, often in load capacity systems. Using graphite bearings dramatically opens up the temperature and chemical range of mechanical operations; some even fare well in cryogenic conditions as graphite is not susceptible to damage as a result of thermal shock. Mostly, they are used in the food, beverage, medical and pharmaceutical industries in machinery where contamination is a concern. They also exhibit high temperature stability and chemical resistance, and can therefore operate in underwater, outer space, underground, in liquid, gas and vacuum environments.

Graphite bearings are able to operate in extreme heat at temperatures significantly higher than any lubricants, which begin to carbonize at temperatures above 200º C. The bearings are fabricated via the extrusion process, which involves heating a mixture of graphite powder and additives until soft and forcing it through a hollow profile. They are generally shaped like standard bushings—round profiles, thin and hollow. Graphite bearings are black or dark grey in color, and are usually smooth and uniform in thickness. Since graphite tends to be a porous material, many bearings are put through post processing secondary operations, where they are impregnated with wax, high purity linseed oil or a resin. This smooths out the surface of the bearing and prevents any problems that may occur if water or gas seeps into the graphite’s exterior surface. The wax, resin or oil reduces the porosity of graphite, making it less susceptible to interior wear and tear. Graphite bearings are long lasting, although as with all bearings or load carrying components, will need to be replaced from time to time. Due to these many advantages, including being dimensionally stable, graphite products are used in a large number of corrosive and abrasive applications.