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Rotary Seal Manufacturers and Suppliers

IQS Directory provides an extensive list of rotary seal manufacturers and suppliers. Utilize our website to review and source rotary seal manufacturers with our easy-to-use features which allow you to locate rotary seal companies that will design, engineer, and manufacture rotary seals for your exact specifications. Our request for quote forms make it easy to connect with leading rotary seal manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for extruded rubber seals, automotive rubber seals, or rubber oil seals.

  • Naples, FL 973-383-2487

    We provide a variety of seals but hydraulic seals are our specialty! Just a few of the hydraulic seals that we are able to offer include hydraulic cylinder seals, hydraulic rod seals, and hydraulic piston seals as well as many others! For over twenty years we have been dedicated to providing our customers with exceptional customer service. To learn more about what we may be able to do for you, visit our website today! We are ISO 9001:2015 certified.

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  • King of Prussia, PA 800-822-4063

    Gallagher Fluid Seals offers an extensive line of hydraulic seals and pneumatic seals from many name-brand manufacturers. Our inventory includes o-ring seals, Teflon® seals, hydraulic packings, pneumatic packings, symmetrical seals, rod seals, piston seals, cup seals and many other products. With more than 50 years of industry experience, Gallagher's products and service offerings are second to none.

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  • Grand Rapids, MI 616-538-4970

    Kent Rubber Supply has been a trusted supplier of hydraulic seals 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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Rotary Seals Industry Information

Rotary Seals

Rotary seals are highly efficient lip seals that keep rotating machinery and equipment components working properly. They provide bearing protection, lubricant retention, exclusion of contaminants, and minimize or eliminate fluids leaking. They are able to perform well for long periods of time with a high rotating speed and in temperatures anywhere from -60°F to 200°F. Rotary seals perform even in poorly lubricated and dry conditions.

Quick links to Rotary Seals Information

Design of Rotary Seals

Rotary seals have many different profiles, but they are usually round and shaped much like an o-ring. They are always symmetrical, meaning their cross sections are mirror images of each other. Because this type of seal is usually made out of Teflon, a material that cannot melt, they are all manufactured by the sintering process. Sintering takes Teflon in powder form and places a dense amount in a rotary seal-shaped mold subjected to high heat in an industrial furnace for a certain time before being rapidly cooled. This forces the powder to adhere together and condense into a hard, black plastic or rubber-like product that is inert, resistant to most chemicals and substances, and can withstand large amounts of pressure and even vacuum environments. While the primary function of seals in rotary applications is to retain the bearing lubricant, they also enhance the life and performance of the bearing by minimizing all dirt, oil, and water ingress.

Rotary Seal Materials

Some are made of metal or plastic materials, but the most popular material for rotary seals is Teflon or PTFE. This material is inert, meaning it will not react with most chemicals, and it performs well under high pressures and in vacuum environments. Some Teflon rotary seals are made specifically for food and beverage processing or pharmaceutical manufacturing applications and must meet strict FDA requirements. Most Teflon seals contain strengthening additives like graphite, bronze, glass, and carbon.

Applications for Rotary Seals

Rotary seals provide a seal for oxygen, gasses, water, other fluids, hydrocarbons, and food materials. They are found in any machinery with a spinning component within the hydroelectric power, hot and cold steel rolling, chemical and petroleum processing, automotive manufacturing, food and pharmaceutical, machine tooling, pulp, paper and textile processing, and hydraulic industries. Gearboxes, marine propulsion systems, process mixers, tunnel boring machines, recreational vehicles, and other machines and equipment use rotary seals, which, when used correctly, lengthen the system's lifespan and increase its durability.



Rotary Seals Informational Video