The shore a type durometer scale is generally used to measure the hardness of most rubber.
O ring hardness measurement.
Shore durometer is the hardness of a material and its resistance to permanent indentation.
The higher the durometer the harder the compound.
The hardness of rubber compounds is measured by the shore a durometer.
O ring sizes are specified by the inside diameter outside diameter od and the diameter of the cross section thickness.
The hardness of rubber o ring compounds are measured by the shore a durometer.
What is the durometer of an o ring.
In the o ring industry another hardness scale is used due to the curved surface of the o ring cross section causing problems with accurately reading shore a.
This is particularly important in low pressure seals that are not activated by fluid pressure.
Technical handbook o rings o ring hardness the hardness of an o ring is important for several reasons.
There is shore 00 shore a shore d and others as well.
The softer the elastomer the better the seal material conforms to the surfaces to be sealed and lower pressure is required to create a seal.
A higher durometer value indicates greater resistance to indentation on a scale of 0 to 100 with 100 indicating no indentation.
Durometer is the international standard for measuring the hardness of objects like rubber and plastic.
The size and shape of the indentor used in irhd readings is much smaller thus allowing for more accurate measurements on curved.
70 durometer hardness should be used whenever possible as it offers the best combination of properties for most o ring applications.
An o ring sizing cone how to measure o ring dimensions.
This test is performed on cured rubber sheets per astm d2240 and on finished o rings per astm d1414.
Thus if you need a rubber or o ring durometer that feels like a running shoe sole review our rubber hardness chart below then pick shore 70a.
In the uk o ring sizes are specified by the british standard bs and each ring size has a related bs number.
Generally most rubber materials fall under the rubber durometer scale of shore a.
The measurements are either in inches or in millimeters.
This silicone o ring has a shore durometer of 70a.
The higher the durometer the harder the compound.
Thus if you need a rubber or o ring durometer that feels like a running shoe sole review our rubber hardness chart below then pick shore 70a.
A rubber durometer of shore 70a is the most commonly chosen material hardness for all applications.
The shore a hardness measurement is often colloquially called durometer or duro.
70 durometer hardness should be used whenever possible as it offers the best combination of properties for most o rings applications.
The scale is irhd international rubber hardness degrees.
There are a few different measurement scales call shores.
