Then take measurements of the outside diameter, following the same principles, except measuring to the outer edges. Bearing in mind that O-rings are measured in millimetres, begin by determining the inside diameter by measuring from one inner edge to another using a Vernier. Place your O-ring on a level, clean and completely flat surface. The good news is that O-rings are relatively easy to measure. With all that said and done, let’s take a look at how to size your O-rings correctly to maximize performance and cost savings in one fell swoop. Having to repeatedly replace worn O-rings can have a detrimental impact in terms of the costly downtime you will incur. Secondly, wrongly sized O-rings can quickly become costly. It sounds obvious, but this is crucial to ensure the effective operation of your sealing application – especially in aggressive industries where perfection is a necessity. Firstly, finding the right O-ring size will ensure an optimum sealing solution. Understanding how to measure an O-ring is important for several reasons. In this blog, we’ll explain how to measure an O-ring correctly. When that time comes, it’s essential to know the correct dimensions of your O-ring to source a like for like replacement.
After countless operational cycles, O-rings will eventually wear out and fail. O-rings are circular, seals that prevent gas or liquid from passing through an opening.