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Question:O ring Sizes

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Question:O ring Sizes

Postby Jack B » Tue Feb 07, 2012 5:28 pm

So I was wondering how to measure the O rings?
do you just lay one out and measure it or is there some special way
I have a 3 " tube and need to find a supply of O rings
Any help?
Thanks
JAck B
Jack B
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Re: Question:O ring Sizes

Postby JWLaRue » Tue Feb 07, 2012 6:06 pm

Jack,

O-rings are usually measured by their ID and width (of the material itself)....meaning that the OD would equal the ID + twice the width.

If you would like to understand how to select the correct size o-ring for a given application, check out this excellent document from Parker Hannifin:

http://www.parker.com/literature/ORD%20 ... ndbook.pdf

...more than we'll ever need to know about o-rings!

-Jeff
Rohr 1.....Los!
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Re: Question:O ring Sizes

Postby Jack B » Tue Feb 07, 2012 6:39 pm

Thanks for the 292 pg PDF Catalogue
Now if I have a spare month to read it
No, really thanks!!
I will give it a look
Jack B
Jack B
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Posts: 43
Joined: Fri Jul 01, 2005 3:06 am
Location: los angeles

Re: Question:O ring Sizes

Postby JWLaRue » Tue Feb 07, 2012 9:10 pm

It is a big document. Ignore most of it..just focus on the size determination parts. :)

-Jeff
Rohr 1.....Los!
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Re: Question:O ring Sizes

Postby Jack B » Tue Feb 07, 2012 9:43 pm

Looks like it has some good info
I will
Thanks
Jack B
Jack B
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Posts: 43
Joined: Fri Jul 01, 2005 3:06 am
Location: los angeles


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