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Polybushes

Posted: Tue Aug 22, 2023 8:13 pm
by stuffedpike20
A simple question...are green polybushes harder than blue ones?

Re: Polybushes

Posted: Tue Aug 22, 2023 8:49 pm
by svenedin
I think the answer is there is no agreed colour code so the elasticity cannot be judged by colour. Different manufacturers use different colour codes. The only way to know is if the manufacturer quotes a Shore number.

Stephen

Re: Polybushes

Posted: Tue Aug 22, 2023 9:22 pm
by les
Joseph Whitworth standardised things, he saw the problem with people doing their own thing.

Re: Polybushes

Posted: Tue Aug 22, 2023 10:24 pm
by philthehill
Most poly bushes no matter what colour are around 70 shore
poly bushes.JPG
poly bushes.JPG (576.74 KiB) Viewed 713 times
Here is the shore gauge I have and which allows me to measure the shore hardness of rubber and poly bushes.
Shore gauge.JPG
Shore gauge.JPG (1.25 MiB) Viewed 714 times

Re: Polybushes

Posted: Wed Aug 23, 2023 5:36 am
by stuffedpike20
Thank you all.

The only reason I asked is because ESM showed blue ones in an advert, and then sent me green ones.