An o-ring is a round mechanical gasket seated in a groove and compressed during assembly between two or more parts to create a seal at the interface. O-rings are among the most common seals because they are inexpensive, reliable, and simple to mount, and they work in both static applications and dynamic applications such as rotating pump shafts and hydraulic cylinders.

What materials are O-rings made from?

Global O-Ring and Seal stocks o-rings in all major compounds, including Nitrile (Buna), Viton (FKM), EPDM, Silicone, AFLAS, FFKM, HNBR, Fluorosilicone, PTFE (Teflon), Neoprene, and Urethane. The right material depends on what is being sealed, temperature range, pressure, dynamic or static service, desired service life, installation, and tolerances.

What is durometer on an O-ring?

Durometer is the hardness of the rubber compound, measured on the Shore A scale; the higher the durometer, the harder the material. Softer compounds stretch more easily and seal better on rough surfaces, while harder compounds offer greater abrasion resistance and resistance to extrusion.

What sizes do O-rings come in?

Global O-Ring and Seal offers the full line of AS568 standard sizes plus a large selection of metric o-ring sizes, as well as custom sizes for cross-sections larger than the AS568 400 Series.

What is the shelf life of an O-ring?

O-ring shelf life ranges from about three years to unlimited, depending on the elastomer type.

Category: O-Rings | Page 6 | Global O-Ring and Seal

Come dimensionare correttamente un o-ring la prima volta

Delle quattro caratteristiche che definiscono un o-ring (materiale, durometro, colore e dimensioni), determinare e comunicare correttamente le dimensioni esatte necessarie è spesso la parte più difficile di un ordine. Applicare metodi collaudati e veri per determinare la dimensione corretta ti farà risparmiare tempo a breve termine, frustrazione e costi aggiuntivi lungo la strada. Leggi [...]

July 12th 2016 | Categories: O-Rings | | Tags: o-ring sizes | Read More

O-ring in neoprene

Gli o-ring in neoprene sono noti anche come o-ring in cloroprene (CR) e offrono una buona resistenza alla luce UV, all'ossidazione e alle applicazioni meteorologiche. L'elastomero di cui sono fatti è economico, resistente all'acqua e agli agenti atmosferici. Questi o-ring sono più comunemente utilizzati nell'industria della refrigerazione grazie all'eccellente resistenza a sostanze chimiche pericolose come l'ammoniaca e refrigeranti come Freon 12, […]

May 25th 2016 | Categories: O-Rings | | Tags: neoprene o-rings, o-ring performance | Read More

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