This as568 o ring chart is a sae size standard for o rings and shows as568 rev b or as568b o ring sizes which supersedes as568 rev a or as568a o ring dimensions.
O ring durometer chart.
For most applications compounds having a durometer hardness of 70 to 90 is the most suitable compromise.
Pressure and clearance gap chart.
Generally most rubber materials fall under the rubber durometer scale of shore a.
Generally most rubber materials fall under the rubber durometer scale of shore a.
The higher the durometer number the harder the compound.
We can change the formulation of the rubber so that the specifications meet your needs.
O ring gland clearance gap size.
70 durometer hardness should be used whenever possible as it offers the best combination of properties for most o ring applications.
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O ring application pressure vs.
In dynamic applications the hardness of the o ring is doubly important because it also affects both breakout and running friction.
Softer compounds stretch easier and seal better on rough surfaces.
Harder materials like 70 75 or 90 durometer compounds offer greater resistance to extrusion.
Tolerances should be considered for the o ring and the.
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.
O ring size chart o ring cord stock osk assorted o ring kits osk o ring repair kits osk hydraulic seal kits osk air nailer o ring kits o ring lube o ring tools as568 o rings inch metric o rings mm osk pool spa pump o rings hydraulic seals inch o ring glue thread sealant vulcanized o rings o ring splice kits tools hydraulic seals metric oil.
Excessive clearance and or pressure can result in sealextrusion and failure.
The rubber durometer chart below gives you an idea of the rubber hardness that you want for your application.
Durometer shore a scale is a type of measurement for rubber material hardness.
This silicone 70 durometer specifications chart will help you determine if these silicone material properties will be compatible with your rubber or o ring seal application.
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.
For specimens that are too thin or provide too small an area for accurate durometer readings micro hardness testing is recommended.
We have millions of as568 o rings in stock which can be purchased easily through our o rings online store.
Consider use of back ups or product selection with large gaps or pressure.
The rubber durometer chart below gives you an idea of the rubber hardness that you want for your application.
Wherever possible 70 durometer hardness should be used as it offers the best combination of properties for most o ring applications.
