With an O-ring there are 2 dimensions that are important to know whether you have the right size. How do you know what dimensions to measure? How do you know if you measure the dimensions correctly?
There are two sizes that you should measure properly: the Inner Diameter (inner size) and the Cross Section (Thickness).
You measure the inner diameter of an O-ring by measuring one side of the inner side to the other side of the inner side (see the video). You therefore do not measure from the outside, because then you measure a size that is much too large. When you measure this you have to be careful not to measure too far, which is easy. This makes it very easy to get confused about the size.
The Cross Section of an O-ring is easy to measure. You simply measure how this is the cord of the O-ring. You do this by going from one side of the cord to the other side of the cord (see the video).
An O-ring is available in different materials. In addition, these metals have different hardnesses. How do I know what material an O-ring has? How do I know the hardness of my O-ring?
To measure the material of an O-ring, it is best to use a Roconize Tool. With a Reconize Tool you let a piston bounce on the rubber of the O-ring. How high the piston bounces back shows what gauge the O-ring is (see the video). The Reconize tool can only be used with O-rings with a hardness of 70 shore. If you have an O-ring with a different hardness, it is best to have your O-ring tested by us or another factory.
* The Reconize Tool is only an indicator, the indication may differ.
It is best to use a Durometer to measure the hardness of an O-ring. A Durometer measures the exact hardness of an O-ring. A Durometer has a pin that you push against the rubber. You will see a number appear on the screen that indicates the hardness of the rubber (see the video).
* Please note, for rubber you need Durometer Shore A. This one is for rubber!!
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Questions about O-ring materials? Find everything about O-ring materials here!
Questions about O-ring resistance? Find everything about O-ring resistance here!