They provide bearing protection, lubricant retention, exclusion of contaminants and minimize or eliminate the leaking of fluids. 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. Read More…
Leading Manufacturers
Allied Metrics Seals & Fasteners, Inc.
Naples, FL | 973-383-2487We 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.
Gallagher Fluid Seals, Inc.
King of Prussia, PA | 800-822-4063Gallagher 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.
Kent Rubber Supply Co.
Grand Rapids, MI | 616-538-4970Kent 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.
Arizona Sealing Devices, Inc.
Chandler, AZ | 480-892-7325Our list of inventory has grown since our founding over 20 years ago. We started small, but now offer an extensive product list of hydraulic seals, o rings, and other rubber products.
Rotary Seals - Allied Metrics Seals & FastenersRotary seals provide a seal for oxygen, gases, 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.
Rotary Seals - Allied Metrics Seals & FastenersGearboxes, 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. 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.
Rotary seals have many different profiles, but they are usually round and shaped much link 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, places a dense amount in a rotary seal-shaped mold that is subjected to high heat in an industrial furnace for a certain length of 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.
