O ring design guide metric

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.

Global O-Ring and Seal has developed o-ring groove design and gland dimension guidelines. The o-ring cross-section in your design will determine all your subsequent dimensions and specifications. Standard o-rings are available in various cross-sections and inside dimensions ID. Below, is a list of advantages in the selection of smaller and larger cross-section o-rings. The ID or OD of the o-ring should be sized to create some interference, per the guidelines below:. Below, four standard application groove design guidance tables are presented along with dimensional reference drawings. The first table is for industrial face or flange seals.

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:. They are known for their low gas permeability, resistance to aging and ozone, and self-extinguishing properties. FKM materials have varying compositions and fluorine content, providing improved chemical or temperature resistance in specific applications. Special formulations of EPDM are suitable for use with glycol-based brake fluids. They are commonly used in applications requiring resistance to high and low temperatures, as well as in medical and food-grade applications. These are just a few examples of the materials used for metric O-Rings, and there are other options available depending on specific application requirements. Metric O-Rings find widespread use in various industries and applications where sealing is necessary. They are employed in both static and dynamic applications, such as fluid or gas sealing in pumps, hydraulic systems, automotive components, machinery, and more.

Secondly, the o-ring is at its smallest cross-section tolerance limit and the gland is at its largest size tolerance limit. Backup rings are designed to eliminate the extrusion gap in high-pressure sealing applications.

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-rubber , doughnut-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 world. Due to the number of ways they can be utilized, there are essentially an endless number of O-Ring sizes.

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.

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.

1 eur to rmb

Therefore dovetail grooves are not recommended unless end use conditions and their effects upon the seal are thoroughly taken into consideration. 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. We offer the largest inventory of specialty and standard sealing solutions backed by best-in-class technology, service and support. To find the minimum area necessary, calculate the total volume of the o-ring which creates the rectangle to hold that volume. A flange or face seal is static and will not have a gap between surfaces, eliminating any design issues associated with extrusion. A dovetail face seal is a special static gland designed to retain the o-ring in the groove. 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. However, due diligence is required when designing a dovetail groove due to limited void space compared to a conventional square groove. Non-Standard Size O-ring Sizes We have millions of o-rings in stock or they con be made to order in a few weeks without tooling fees. Backup Ring Layouts Backup rings are designed to eliminate the extrusion gap in high-pressure sealing applications. Below, is a list of advantages in the selection of smaller and larger cross-section o-rings. All Rights Reserved. This can allow more streamlined maintenance and shorter downtime with less effort required to secure the seal during installation. Standard o-rings are available in various cross-sections and inside dimensions ID. Home :: Metric O-Ring Information.

O-ring groove design guides offer default dimensional guidance on the most basic o-ring groove design applications.

They are commonly used in applications requiring resistance to high and low temperatures, as well as in medical and food-grade applications. If the trade-offs of gap design and durometer do not work, the use of backup rings are recommended to overcome extrusion issues. Engineering support services are available for a fee for expert help optimizing critical applications. However, The O-Ring Store, LLC makes no warranty, expressed or implied, that parts supplied in this material will perform satisfactorily in specific applications. Request a Quote. There will always be a gap between the two surfaces. Featuring dimensions for metric cylinders and face seal flange grooves. The O-Ring squeeze focuses on the extrusion gap and seals. A flange or face seal is static and will not have a gap between surfaces, eliminating any design issues associated with extrusion. Metric O-Rings find widespread use in various industries and applications where sealing is necessary. This metric o-ring groove design reference guide will help you find the right radius, back-up, pressure and other o-ring dimensions for basic applications.