DIY Si
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| posted on 23/12/11 at 01:37 PM |
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Caterham A frame spherical bearing?
Afternoon, and Merry Xmas, all.
I'm having a bit of trouble ensuring that I'm putting the Caterham based De-Dion set up together properly.
The thing bothering me at the moment is the spherical bearing that I have just
found out about. Where is it meant to go? The De-Dion tube itself came with a rubber bush pressed into it's central joint, and I know the A
frame is meant to have rubber bushes in the two front mounts.
So where does the spherical bearing come in? Should it be in the centre of the tube, and as such allow the tube to roll a little better about the
mount? The bush that's currently there is a good fit length wise, and a spherical bearing looks like it would be far too thin to fit. I've
tried searching the web, but I'm not having much joy.
Thanks all, Si.
“Let your plans be dark and as impenetratable as night, and when you move, fall like a thunderbolt.”
Sun Tzu, The Art of War
My new blog: http://spritecave.blogspot.co.uk/
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Minicooper
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| posted on 23/12/11 at 01:44 PM |
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The spherical bearing goes in the axle where your rubber bush is now, it's an upgrade the same way you use a rose joint instead of bushes in
wishbones for example. You would need some spacers to give the correct width and also I believe there are some sort of dust covers to protect the
central bearing. For a road car I would stick with the rubber bush
Cheers
David
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DIY Si
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| posted on 23/12/11 at 01:46 PM |
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That would explain it!
Given that I'm also using the Watt's link upgrade, would that alter your view on not using it for a road car? Does the bearing give any
better/worse roll movement or resistance?
“Let your plans be dark and as impenetratable as night, and when you move, fall like a thunderbolt.”
Sun Tzu, The Art of War
My new blog: http://spritecave.blogspot.co.uk/
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Minicooper
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| posted on 23/12/11 at 01:59 PM |
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I personally would of thought that the axle would move easier and not put large twisting stresses into the axle central housing, as your not
distorting the bush in order to get suspension movement. The other end of the A frame is rubber bushed anyway so it shouldn't add to the road
noise and harshness for a road car, as long as one end is rubber mounted.
Any pictures, where are you using the watts linkage?
Cheers
David
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DIY Si
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| posted on 23/12/11 at 02:25 PM |
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That was pretty much my thinking. As it is I only get about 4" roll before the car starts to move about, although it is currently on it's
side. With a spherical joint I would expect much more before meeting resistance.
The set up is going under my Sprite. Although if I had realised at the outset just how much I was going to have to chop it all about, I think I
would've started from scratch!! The Watt's linkages are used on the Superlights to help remove bump steer. There is a bit of work to do on
the car yet though. I mainly need to stiffen the boot to deal with the loads from the rear links, and fit turrets for the coil overs.
[Edited on 23/12/11 by DIY Si]
“Let your plans be dark and as impenetratable as night, and when you move, fall like a thunderbolt.”
Sun Tzu, The Art of War
My new blog: http://spritecave.blogspot.co.uk/
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MikeRJ
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| posted on 23/12/11 at 05:12 PM |
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The bushes in the watts linkage arms also have to distort in roll and single wheel bump so I don't suppose it will make a lot of difference.
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