Your Partner for Sealing Technology Trelleborg Sealing Solutions is a major international developer, manufacturer and supplier of seals, bearings and molded components in polymers. We are uniquely placed to offer dedicated design and development from our market-leading product and material portfolio: a one-stop-shop providing the best in elastomer, silicone, thermoplastic, PTFE and composite technologies for applications in aerospace, industrial and automotive industries. With 50 years of experience, Trelleborg Sealing Solutions engineers support customers with design, prototyping, production,...

Contents5 General Information 5 Description 8 O-Ring Dimensions in Accordance with 17 O-Ring Dimensions for Straight Thread Tube Latest information available at www.trelleborg.com/seals • Edition July 2022 trelleborg sealing solutions • 3

! This page is intentionally left blank. 4 • TRELLEBORG SEALING SOLUTIONS Latest information available at www.trelleborg.com/seals • Edition July 202

General Information General Information DESCRIPTION O-Rings offer the designer an efficient and economical sealing element for a wide range of static or dynamic applications. Compared with other sealing elements, the O-Ring has a wide range of advantages: Inexpensive production methods and its ease of use have made the O-Ring the most widely used seal. - S imple, one-piece groove design reduces hardware and design costs - Compact design allows smaller hardware A broad range of elastomer materials for both standard and special applications allow the O-Ring to be used to seal practically all liquid...

O-RING · General Information METHOD OF OPERATION O-Rings are double-acting sealing elements. The initial squeeze, which acts in a radial or axial direction depending on the installation, gives the O-Ring its initial sealing capability. This force is superimposed with the system pressure to create the total sealing force, which increases as the system pressure increases (Figure 2). Under pressure, the O-Ring behaves in a similar way to a fluid with high surface tension. The pressure is transmitted uniformly in all directions. Figure 2: O-Ring sealing forces without and with system pressure 6 •...

MATERIALS NBR is mostly used with mineral based oils and greases NBR (Nitrile Butadiene Rubber) - The properties of nitrile rubber depend mainly on the ACN content, which ranges between Table 1: General field of application Dimensions: Inside diameter d1 = 2.800 inch (71.12 mm) Cross section d2 = 0.103 inch (2.62 mm) (Nitrile-Butadiene Rubber 70 Shore A) Other material codes for specific AS568 sizes available upon request. Contact your local Customer Solutions Center to obtain the best recommendation from Trelleborg Sealing Solutions. Latest information available at www.trelleborg.com/seals •...

O-RING ■ Product Range O-RING DIMENSIONS IN ACCORDANCE WITH AS568 AND ISO 3601-1 The following tables show the preferred 0-Ring dimensions In accordance with the American standard AS568 and the international standard ISO 3601-1, including appropriate reference numbers. AS568 0-Rings are identical with the ISO 3601-1 Class A standard and available in the materials specified in Table 2. 8 • TRELLEBORG SEALING SOLUTIONS Latest information available at www.trelleborg.com/seals • Edition July 2022

Latest information available at www.trelleborg.com/seals • Edition July 2022 TRELLEBORG SEALING SOLUTIONS • 9

10 • TRELLEBORG SEALING SOLUTIONS Latest information available at www.trelleborg.com/seals • Edition July 2022

Latest information available at www.trelleborg.com/seals • Edition July 2022 TRELLEBORG SEALING SOLUTIONS • 11

12 • TRELLEBORG SEALING SOLUTIONS Latest information available at www.trelleborg.com/seals • Edition July 2022

Latest information available at www.trelleborg.com/seals • Edition July 2022 TRELLEBORG SEALING SOLUTIONS • 13

14 • TRELLEBORG SEALING SOLUTIONS Latest information available at www.trelleborg.com/seals • Edition July 2022

TRELLEBORG SEALING SOLUTIONS • 15 Latest information available at www.trelleborg.com/seals • Edition July 2022

16 • TRELLEBORG SEALING SOLUTIONS Latest information available at www.trelleborg.com/seals • Edition July 2022

TRELLEBORG SEALING SOLUTIONS • 17 Latest information available at www.trelleborg.com/seals • Edition July 2022

O-RINGS · General Quality Criteria General Quality Criteria and Storage Guidelines General Quality Criteria The cost-effective use of seals and bearings is highly influenced by the quality criteria applied in production. Seals and bearings from Trelleborg Sealing Solutions are continuously monitored according to strict quality standards from material acquisition through to delivery. Production facilities are certified according to relevant quality management system standards. Depending on the requirements of the customer or market and in addition to the current ISO 9001, these locations may have...

ROTARY SEALS · Storage Guidelines Deformation Rubber should be stored free from tension, compressive stresses or other causes of deformation. Where products are packaged in a strain-free condition, they should be stored in their original packaging. In case of doubt, the manufacturer's advice should be sought. It is advisable that rings of large internal diameter are formed into three equal loops so as to avoid creasing or twisting. It is not possible to achieve this condition by forming just two loops. Contact with liquids and semi-liquid materials Rubber should not be allowed to come into contact...

O-RINGS · Storage Guidelines Storage Guidelines Storage Guidelines Assessment at the end of the initial period Assessment at the end of the initial period If, following the visual inspection procedure the items are not If, following the visual inspection procedure the items are not satisfactory, they should not be stored for an extended period. satisfactory, they should not be stored for an extended period. If the items are satisfactory and are stored for an extended If the items are satisfactory and are stored for an extended period a record should be kept of the date initial storage period...