The Highest Quality O-Rings Available When You Need Them

With one of the largest inventories of o-rings, cord stock, and related seals (square rings, x-rings, backup rings, and more) in North America, we’re committed to providing the right product at the right price to every customer. Our technical sales team is experienced and knowledgeable about o-rings and their application. Because of this, we provide customers with guidance that ensures the optimal solution.

Not sure what you need? Let us help you find the right seals for you. For more information or to request a quote on o-rings, please give us a call at 832-448-5550 or submit the Product Inquiry Form.

Oリングの購入

Global O-Ring and Seal offers the full line of AS568 Size o-rings in the following materials:

View our AS568 Size Chart for a full listing of all sizes and dimensions.

What is an O-Ring?

An o-ring is a round, mechanical gasket designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface. O-Rings are one of the most common types of seals because they’re inexpensive, reliable and have simple mounting requirements. Since they are known as one of the most important elements of machine design, o-rings may be used in static applications, where little range of motion is required. O-Rings may be used in dynamic applications, like rotating pump shafts and hydraulic cylinder positions, also (see o-ring size chart).

O-Ring Compounds

We offer many different o-ring compounds for a variety of applications. Visit our Compounds page to see a list of all our standard compounds and their properties.

O-Ring Material

Material matters. Due to this, selecting an o-ring material for a specific application is dependent on many criteria, including what’s being sealed, temperature range, pressure, dynamic or static service, desired service life, installation considerations, tolerances, and many more. General purpose compounds are used broadly, however, utilizing the exact compound consistently is equally as important. At Global O-Ring and Seal, you can be assured that all our general purpose o-rings meet the standards stated in our spec sheets. We do not mix compounds even for general purpose o-rings. To learn which o-ring materials will work best in your application, review our Material Selection Guide and Chemical Compatibility Table.

Durometer

Determining durometer isn’t hard. The hardness of rubber compounds is measured by the Shore A durometer; the higher the durometer, the harder the compound. In addition, softer compounds stretch easier and seal better on rough surfaces. Harder compounds offer greater abrasion resistance and resistance to extrusion. To learn more about o-ring durometer, click here.

O-Ring Part Numbering System

Global O-Ring and Seal’s o-ring part numbers are designed to describe the material, durometer, size, and any special features. As an example, the graphic below displays the part number for an o-ring made of Nitrile, at a durometer of 70, with a 230 AS568 size, and is peroxide-cured. See the tables below for more material and special feature abbreviations.

Product Inquiry

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接尾記号
特殊機能
(ブランク) 特別な機能はありません
ETP 極端な温度
FDA FDAグレード
HG 高視認性グリーン
HY 視認性の高い黄色
LT 低温
MD 金属検出可能
PC 過酸化物硬化
RGD 急速ガス減圧
YW

Oリングには、目に見える以上のものがあります。特定の業界に設置されているOリングのタイプを視覚的に識別するために、特定の色基準が日常的に使用されています。このため、最も一般的な色、材料、および化合物のOリングを在庫しています。こちらでOリングの色をご覧ください

棚の寿命

Oリングの貯蔵寿命は、エラストマーの種類に応じて、3年から無制限までさまざまです。 Oリングの保管寿命に関する推奨事項の詳細については、こちらをご覧ください

Oリング溝の設計

Oリンググランドの適切な設計には、多くの要因が関係しています。 Oリング溝の設計ガイドラインはこちらからご覧ください

メートル法のOリング

グローバルOリングおよびシールは、さまざまなコンパウンドでメートル法のOリングサイズの幅広い選択肢を提供します。 「メートル法のOリング」とは、Oリングのサイズがミリメートル単位で定義されることを意味します。メートル法のOリングの詳細をご覧ください

カスタム成形Oリング

AS568 400シリーズ(.275インチCS)よりも大きい断面のカスタムサイズのOリングをお探しの場合は、すべての標準的な材料とサイズで5,000万を超えるOリングの膨大な在庫を超えています。またはそのシリーズの最大IDよりも大きいIDの場合、私たちはあなたの頼りになるプロバイダーです。カスタム成形されたOリングの詳細をご覧ください

Oリングの購入