O ring design guide metric

JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser. O-Rings are solid-rubberdoughnut-shaped seals used to block the passage of a gas or liquid when pressed between two mating surfaces. They are amongst the most widely utilized seal designs in the o ring design guide metric.

Metric O-Rings are a type of mechanical gasket used for sealing applications. They are a specific variation of O-Rings, which are mechanical seals in the shape of a torus with a round cross-section. Metric O-Rings are designed with standardized dimensions based on the International Organization for Standardization or ISO , making them suitable for applications that follow metric specifications. Metric O-Rings are manufactured using various materials, such as synthetic rubbers, thermosets, and elastomers, each chosen based on factors like chemical compatibility, temperature range, sealing pressure, lubrication requirements, durometer, size, and cost. Some of the most common materials used for metric O-Rings include:.

O ring design guide metric

The info is based on 70 Shore A Durometer hardness only. Featuring dimensions for metric cylinders and face seal flange grooves. This can allow more streamlined maintenance and shorter downtime with less effort required to secure the seal during installation. Especially handy if the face seal is assembled upside-down. However, due diligence is required when designing a dovetail groove due to limited void space compared to a conventional square groove. This problem can be aggravated by volume swell. Therefore dovetail grooves are not recommended unless end use conditions and their effects upon the seal are thoroughly taken into consideration. Note: Top radius R is a critical dimension; too small a radius can damage the seal during installation, while excess radius can lead to extrusion failure. It achieves the same sealing efficiency with either internal or external pressure. However there is very little void space and volume swell can easily lead to extrusion failure. Website by Highland Creative. Search Close this search box. Surface Finish Generally surface finish for sealing surfaces are as follows… 63RMS maximum: For non-critical sealing surfaces such as groove sides 32RMS maximum: For static sealing on critical sealing surfaces such as groove base and top. Static Cylinder Grooves.

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O-ring groove design guides offer default dimensional guidance on the most basic o-ring groove design applications. The best o-rings are useless without the right groove design which becomes increasingly important the more demanding the application environment. Review the general o-ring groove design considerations before moving onto the specific o-ring gland design type. Engineering support services are available for a fee for expert help optimizing critical applications. X-Ring Seals and high performance O-Ring material groove design follows the same principals as basic O-Ring applications, although require even more attention to design adjustments for specific application environments for optimal sealing performance and life. Consultations with our engineering department is highly recommended for critical applications. Welcome to the world's largest database of specialty and standard sealing products.

An O-ring groove is a circular cross-sectioned recess in a housing or mechanical device designed to hold an O-ring seal. The O-ring sits in the groove and is compressed during assembly, creating a seal between two surfaces. O-ring groove design is critical to the performance of the O-ring seal. When designing an O-ring groove, it is essential to consider all these factors to ensure an effective seal. O-rings are available in various materials, sizes, and cross sections to meet the needs of most applications. O-ring compression ratios can vary depending on the application. At Allied Metrics , we can assist with O-ring groove design and O-ring selection to ensure a successful application. Types of O-ring Grove Design Standard O-ring groove The Standard O-ring groove is typically used in applications where there is a need for a static seal, such as in hydraulic systems. Dynamic sealing applications use this groove, such as in pneumatic systems. A dovetail O-ring groove is a type of O-ring groove design that incorporates a dovetail-shaped cross-section.

O ring design guide metric

As your value-added partner, ERIKS offers the technical expertise to provide customized solutions to your sealing requirements. This manual can be downloaded per section using the below table of contents of completely in the documentation section. If you have any questions about ERIKS' sealing solutions, please contact one of our locations or fill in our contact form below the table. Home » Technical info » Technical O-ring Handbook. Technical O-ring Handbook. Back to Technical info. Contact us If you have any questions about ERIKS' sealing solutions, please contact one of our locations or fill in our contact form below the table. Title Pag. Download 1. Introduction 2 kB 2.

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A flange or face seal is static and will not have a gap between surfaces, eliminating any design issues associated with extrusion. Finally, backup rings can either be flat solid, split, or spiral or contoured. Request a Quote. Reset Filters. Typically, these applications involve designs involving one mating part being inserted into another part requiring design clearances. Why Marco? Reciprocating Cylinder Grooves. It achieves the same sealing efficiency with either internal or external pressure. Welcome to the world's largest database of specialty and standard sealing products. The wide ranges of ID dimensions of O-Rings are developed around standard inch fractional sizes. All Rights Reserved. The third table is for dynamic industrial reciprocating applications. Explore Groove Designs View our o-ring groove charts for standard o-ring gland design and our o-ring groove design recommendations FAQs.

O-ring groove design guides offer default dimensional guidance on the most basic o-ring groove design applications. The best o-rings are useless without the right groove design which becomes increasingly important the more demanding the application environment. Review the general o-ring groove design considerations before moving onto the specific o-ring gland design type.

Or, watch our introduction to o-rings youtube video below:. First, the o-ring is at its upper tolerance limit and the gland height is at its lower tolerance limit. In the sealing design, unless the bore and piston or rod are ensured to remain concentric by bearings, it must be assumed that all the gap possible can shift to one side. To read more about the elements involved in o-ring pressure tolerance, click here. Another option is increasing the durometer hardness of the compound, which increases the allowable pressure for a defined gap. There are crucial differences when identifying the size of an O-Ring cross section depending on whether the application is static or dynamic. However, due diligence is required when designing a dovetail groove due to limited void space compared to a conventional square groove. Speak with a Product Expert. The info is based on 70 Shore A Durometer hardness only. Dovetail Groove. Backup rings work by covering the existing gap. All Rights Reserved. Ultimately, the final design must handle the extremes of tolerances. Backup Ring Layouts Backup rings are designed to eliminate the extrusion gap in high-pressure sealing applications. Welcome to the world's largest database of specialty and standard sealing products.