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.
O ring cross section tolerance.
Manufacturers of encapsulated o rings and industrial gaskets.
For non standard o rings however there is no industry standard for this several dimensional specifications have to be taken into consideration.
Non continuous flats shall be blended out smoothly.
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.
Axial dimensions of an o ring shall not exceed a depth of 003 in.
To leaks caused by spiral failure of the o ring.
Nominal cross section o rings.
The difference between the original o ring cross section and the final o ring cross section once installed is known as the compression squeeze.
In general tighter tolerance components or rigid.
That standard groups metric.
O ring tolerances for cross section and inside diameter.
Diameters cross sections tolerances and size identification code.
Standard o rings or iso 3601 are given a concrete set tolerance for both inner diameter id and cross section cs.
0 08 mm and shall not cause deviation from the nominal section of the o ring in excess of the drawing tolerances i e.
When the cross sectional diameter is on its lower limit no flat ting is permissible.
Until now o ring standards have left a gap between the 1 8 and 3 16 nominal cross sections.
An o ring is a solid rubber seal shaped like a doughnut or torus.
O ring cross section and o ring groove design data from row inc.
Please contact us if you are looking for a size not shown in the 5 32 group.
Dimensional tolerances for all metric o rings offered by global o ring and seal are in accordance with iso 3601 1b.
Find the right o ring tolerance for your application and easily order online today from the world s largest o ring inventory network.
Our tolerances are only meant to serve as a guide.
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.
The o ring tolerances outlined in the charts below reference general purpose o rings and x rings.
