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Large O-Rings Manufacturers and Suppliers

IQS Directory provides a comprehensive list of large o-ring manufacturers and suppliers. Use our website to review and source top large o-ring manufacturers with roll over ads and detailed product descriptions. Find large o-ring companies that can design, engineer, and manufacture large o-rings to your companies specifications. Then contact the large o-ring companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product new articles. Whether you are looking for manufacturers of large rubber o-rings, large diameter o-rings, round flat o-rings, or customized large o-rings of every type, this is the resource for you.

  • Chandler, AZ 480-892-7325

    Since 1989, we have been an o-ring distributor. We offer commercial, FDA, military, metric o-rings, caps, plugs, gaskets & more. Custom, rubber o-rings, metal o-rings, diaphragms, face seals and non-standard o-rings are also offered. Viton® o-rings & o-ring kits are supplied by Arizona Sealing Devices, making us the source of seals, die cutting, oil seals, packings, sheeting, vee rings, etc.

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  • Sparta, NJ 973-383-2487

    A leading o-ring manufacturer of quality metric seals for industries worldwide, defines Allied Metrics Seals & Fasteners. We offer FDA-approved elastomers, Teflon® seals, o-rings & much more. Choose from o-ring sizes, metal & plastic o-rings, o-ring kits, o-ring seals, silicone o-rings, EPDM o-rings, static o-rings, etc. We are an ISO 9001:2015 certified company. Call/visit our website for more information about our products & services!

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  • Lawrenceville, GA 877-432-3627

    Since 1973, Daemar USA has been producing the best-quality hydraulic seals and o-rings on the market. We offer a wide variety of o-rings, including silicone, Teflon, EPDM, HSN-80, back-up, and Aflas o-rings. We also offer o-ring cord, quad rings, and o-ring packs. Our seal collection includes oil seals, axle seals, JM clipper seals, end caps, Teflon Energized seals, v-rings, and more. We are an ISO 9001 certified company, and we are eager to help you find the o-rings and seals that you need!

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  • Santa Fe Springs, CA 562-941-4800

    RD Rubber Technology Corp is an ISO 9001:2015 / AS9100:2016 certified and ITAR registered company. We offer compression, transfer, injection and Liquid Injection molding, rubber to metal bonding, engineering support, tooling design, machining and more. Our customers rely on us to give them the best possible production o-rings. From aerospace to medical, food processing to military applications we build trust by being responsive to your needs.

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  • Grand Rapids, MI 616-538-4970

    Kent Rubber Supply has been a trusted supplier of o-rings since 1946. Focusing in exceeding customer service, we leverage the best equipment and the most knowledge staff to ensure we meet our customers unique needs. With our trusted experts, we determine the best rubber, foam, sponge or PVC material for your specific need. We continue serving customers both offshore and domestic.

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  • Lancaster, NY 716-684-7600

    Sealing Devices is a leading North American distributor & fabricator of o-rings, gaskets, seals, adhesives and EMI shielding for industrial, aerospace, medical and military applications. Our products can be from our stock inventory or custom made to fit your specific application. We look forward to working with you and finding solutions to your sealing needs. Visit our website today!

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  • Littleton, MA 800-882-3666

    As the largest in-house pure gum inventory carrier in the U.S., Atlantic Rubber Company has cost-effective and resilient rubber tubing. Materials we carry for all your rubber tubing needs are: latex, silicone, pure gum and o-rings. Our natural rubber tubing is cold temperature and abrasion resistant. We are proudly ISO 9001 certified. Contact us today for more information.

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Large O-Rings Industry Information

Large O-Rings

Large o-rings are the most massive sized o-rings available for sale. Some are offered through sizing charts and mass produced, while others must be custom made to fit certain dimensions. They are made out of elastomeric rubber or thermoplastic materials like silicone, Teflon, or Viton, and exhibit the same properties.

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Applications of Large O-Rings

Large o-rings are used in most process industries, specifically within the chemical, hydrocarbon, pharmaceutical, food processing, beverage, and electronics industries. The multitude of applications for large o-rings includes thread tube fitting, which involves a third piece between two tubes that connects them, known as a union piece. This piece allows access for system check-ups and management of leaks and such. Fitting military gland designs, which are larger than most o-ring grooves, is also one example of how large o-rings are utilized.

There is also the production of flat panel displays, which are built to support the weight of an object perpendicular to a wall. Such a display cannot shake or move and therefore requires the soft buffer of an o-ring between the wall and the mount part screwed into it. All of these applications require the use of a basic o-ring, except with a larger width and outside and inside diameter, to support the proper magnitude of the product it is part of supporting. Large o-rings are usually rubber rather than metal, particularly in reference to the three applications just discussed.

O-Ring Design and Customization

There are several different methods to determine the size of an o-ring or the desired size for a specific application. O-ring gauges are devices that measure the size of any o-ring by placing the o-ring being measured around two halves of spindles until it is a tight fit. The spindles expand until tight and a size is sown in a digital window. Digital calipers perform a similar way but measure the o-ring by a size chart. Shadow graphs match an o-ring with its correct standard sizing by providing life-size drawings of o-rings.

All O-rings have standardized sizes among different countries, the most popular of which is the AS568 O-rings. Large o-rings are often sold as a part of an o-ring kit with a variety of o-ring sizes packaged together by an o-ring manufacturer. For companies that have a multitude of products or systems requiring o-rings, a kit including all the sizes they need would be a smarter investment than buying each o-ring size individually.



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Large O-Rings Informational Video