O Ring Cross Section Tolerance

The main advantages of larger cross section o rings include being less prone to compression set less volume swell in liquid based on percentage basis and allows for larger tolerance while maintaining an acceptable compression squeeze and compression ratio over full stack up range. That standard groups metric. Until now o ring standards have left a gap between the 1 8 and 3 16 nominal cross sections.

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Oring Ehandbook

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For non standard o rings however there is no industry standard for this several dimensional specifications have to be taken into consideration.

O ring cross section tolerance.

O ring cross section and o ring groove design data from row inc. O ring size chart as568 standard o ring sizes find as568 o ring standard sizes by cross section inside diameter and outside diameter in our o ring size chart and separate o ring tolerance chart. The o ring tolerances outlined in the charts below reference general purpose o rings and x rings. An o ring is a solid rubber seal shaped like a doughnut or torus.

You can select your tolerance range in the store. Dimensional tolerances for all metric o rings offered by global o ring and seal are in accordance with iso 3601 1b. Diameters cross sections tolerances and size identification code. 0 08 mm and shall not cause deviation from the nominal section of the o ring in excess of the drawing tolerances i e.

Find the right o ring tolerance for your application and easily order online today from the world s largest o ring inventory network. Standard o rings or iso 3601 are given a concrete set tolerance for both inner diameter id and cross section cs. In de signing this new group of o rings we left spacing in the part numbers to allow us to add additional sizes should they be required. In general tighter tolerance components or rigid.

Please contact us if you are looking for a size not shown in the 5 32 group. Manufacturers of encapsulated o rings and industrial gaskets. Select a size to buy standard and custom o rings from the world s largest inventory network or custom orders can be made within a few weeks typically without tooling fees. Non continuous flats shall be blended out smoothly.

Axial dimensions of an o ring shall not exceed a depth of 003 in. To leaks caused by spiral failure of the o ring. When the cross sectional diameter is on its lower limit no flat ting is permissible. The difference between the original o ring cross section and the final o ring cross section once installed is known as the compression squeeze.

Nominal cross section o rings. For recommended o ring c s squeeze values please refer to page 11 12. Our tolerances are only meant to serve as a guide. O ring tolerances for cross section and inside diameter.