GRRR
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| posted on 5/8/11 at 02:40 PM |
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Upright Design - how does this work
Hi all,
In this pic of an MNR upright, does anyone understand how it all fits together? i.e. the machined stub that takes the hub, surely if thats just welded
onto the vertical section of the upright it couldn't take the weight, loadings, fatigue etc from taking direct transfer of forces from the road
wheel?
.jpg)
Assuming this takes some sort of Ford bearing like this:
if you were to make your own, does the stub thing just have to be sized to fit inside the hub flange bearing? Without having it in front of me I have
trouble understanding how wheel bearings fit together...
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Miks15
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| posted on 5/8/11 at 02:56 PM |
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i imagine it will go through the vertical parts and be welded on the back aswell so its welded both sides of the upright.
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nick205
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| posted on 5/8/11 at 02:59 PM |
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The MNR upright with spindle looks to be designed for a Cortina set up where the bearings run on the spindle. The spindle will probably pass right
through the uptight which will be strengthend to suit and be secured with a nut from behind.
The item below looks like a Sierra type set up where the bearings are pressed into the upright itself. More like a FWD set-up (I believe the Sierra
uprights were designed to easily take driveshafts to allow for 4WD variants).
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PSpirine
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| posted on 5/8/11 at 03:00 PM |
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I don't know how it's done, but if I were doing it I'd make a hole through the square box section for the stub, then sleeve that
hole by weldinng a tube to join the two faces of the box section.
Then the stub goes through, the front plate gets welded to the upright as you can see in the picture, and the stub axle gets welded on the rear to the
upright.
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nick205
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| posted on 5/8/11 at 03:04 PM |
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quote:
Originally posted by PSpirine
I don't know how it's done, but if I were doing it I'd make a hole through the square box section for the stub, then sleeve that
hole by weldinng a tube to join the two faces of the box section.
Then the stub goes through, the front plate gets welded to the upright as you can see in the picture, and the stub axle gets welded on the rear to the
upright.
That's about it except the spindle is usually bolted on to avoid distortion to machined parts from welding.
These diagrams might help....
Cortina
Sierra
Also worth looking at the Rally Design alloy upright to see how it's assembled...
[Edited on 5/8/11 by nick205]
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Liam
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| posted on 5/8/11 at 03:37 PM |
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I'd be extremely surprised if the spindle is welded onto the upright. The thick round yellow section directly beneath the spindle that is welded
is most likely just a thick load spreading section rather than part of the spindle, and the spindle is likely bolted on.
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GRRR
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| posted on 5/8/11 at 04:03 PM |
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Wow quick reponses, thanks all. So the stub would presumably have to be custom made, I'm assuming it'd be some sort of hardened steel?
ChroMoly or something like that
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Alan B
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| posted on 5/8/11 at 04:13 PM |
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Not much hardness required, more toughness and fatigue resistance needed. But, agreed 41xx (chromoly) would work.
Alan
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flak monkey
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| posted on 5/8/11 at 04:14 PM |
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quote:
Originally posted by GRRR
Wow quick reponses, thanks all. So the stub would presumably have to be custom made, I'm assuming it'd be some sort of hardened steel?
ChroMoly or something like that
Plain steel is man enough, but they are likely made from EN16T
These are probably what is being used, and are cortina geometry.
https://randallmotorsport.ssl-01.com/product_info.php?products_id=497
David
Sera
http://www.motosera.com
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