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Author: Subject: poly bush hardness
chrisf

posted on 29/10/08 at 09:59 AM Reply With Quote
poly bush hardness

Hi Gents:

I need to order some polyurethane stock that will be turned for my bushings. What hardness range should I be after?

--Thanks, Chris

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v8kid

posted on 29/10/08 at 12:48 PM Reply With Quote
What about Nylon 66? Standard engineering bearing material, easy to machine and cheap.
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flak monkey

posted on 29/10/08 at 12:53 PM Reply With Quote
quote:
Originally posted by v8kid
What about Nylon 66? Standard engineering bearing material, easy to machine and cheap.


With no give at all....

Not sure, but mine are very hard material, not sure what the Shore value is though.

Why not ask someone like rally design what their bushes are?

David





Sera

http://www.motosera.com

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v8kid

posted on 29/10/08 at 01:47 PM Reply With Quote
Yup no give at all!

Ok if you used a simple jig to ensure your top and bottom bushes are concentric ( I used a bit of 12mm rod) and on the road they might be a bit noisy.

I suppose it depends if you are happy with your suspension pick up points moving about - to be honest I don't think it would make much difference they will only move a few mm.

Anyone any experiences of nylon versus polyurethane bushes?

Cheers

David

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procomp

posted on 29/10/08 at 02:07 PM Reply With Quote
Hi.

For suspension bushes you are looking at 80-85 shore. for damper bushing you would want 90 shore.

Cheers Matt

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IDONTBELEIVEIT

posted on 29/10/08 at 05:56 PM Reply With Quote
oil-lite phosphur bronze with grease nipples





Are We There Yet, Are We There Yet!!!!

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