darren(SA)
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| posted on 5/11/02 at 09:57 PM |
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Suspension bushes?
Hi guys,
what would the perfect suspension bushes be made of: Rubber or polyureuthane(don't ask me how to spell it)
We've got a company that moulds both so shore hardness ,wall thickness etc is not a problem.
It would be for road/track conditions.
thanks
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stephen_gusterson
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| posted on 5/11/02 at 10:16 PM |
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All the bushes I have seen advertised are polywhatsit, so thats gotta be some guide.....
atb
steve
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darren(SA)
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| posted on 5/11/02 at 10:18 PM |
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so you recon poly?
this will obviously be a harder ride compared to rubber, any idea of the wall thickness?
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Hornet
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| posted on 6/11/02 at 08:32 AM |
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From an earlier post m8,
I also have a set of the MK bushes-
They are of the split design, each half being -
overall length 17mm
(flange length 4mm, therefore the bit that goes in the wishbone is 13mm long)
Diameter of the part that goes in the wishbone is 29mm
internal diameter is 19
The steel core supplied is 44.5mm (1 3/4inches) long, 3/4" (app19mm) OD . It's obviously cut from a length of tube with a wall of 3.2 (eighth inch)
.
Measurements suggest a 1/2" bolt may not go in, so I may get someone with a lathe to drill them 1/2"
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interestedparty
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| posted on 6/11/02 at 09:04 AM |
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quote:
Originally posted by darren(SA)
this will obviously be a harder ride compared to rubber, any idea of the wall thickness?
Actually depends on the relative hardness of the rubber or polyurethane used. Poly stretches further and so tends to be more resilient. Some ruber
compounds are much stiffer than some poly compounds.
I don't think the MK bushes referred to above are polyurethane BTW
John
As some day it may happen that a victim must be found,
I've got a little list-- I've got a little list
Of society offenders who might well be underground,
And who never would be missed-- who never would be missed!
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darren(SA)
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| posted on 6/11/02 at 08:08 PM |
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My ID(inside diameter) of the inner bush is 14mm. what size should the OD(outside diameter) of the inner bush be if the outer bushes ID is 36mm.
If you had a bush with rubber and a bush with poly, of same shore hardness, which would be better?
What hardness should I look at?
thanks
darren
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Stu16v
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| posted on 6/11/02 at 11:30 PM |
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Poly would be better IMO, because it will also act as a bearing surface on the inner metal sleeve. Most rubber bushes are bonded onto an inner and
outer sleeve, which gives stiction in the suspension travel. Rubber used as a bearing surface will wear out v. quickly.
Dont just build it.....make it!
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