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Rear disc conversion

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Spitfire:
Amazing work, how it works is all black magic to me but it is certainly the way to go to make bespoke parts.

Cheers

Denis

Laverdaroo:

--- Quote from: SteveD CB500K0 on October 21, 2021, 01:07:11 PM ---Next time you get the lathe out can you make a short video for us non-engineer types?


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--- End quote ---


I'd love to but I'm not an engineer, I'm an aquatic consultant but just an addicted shed twiddler. I' make some inroads to havin a go once we move.

allankelly1:

--- Quote from: Oddjob on October 22, 2021, 06:29:00 PM ---Yep, that looks much better, great work, nice to see someone thinking outside of the box.

--- End quote ---
Hi Oddjob

Thanks for the

On a mk3 version at the mo as added an extra lug so the torque arm fitting is just outside the disc outer diameter after looking at some other sets up on the internet and it keeps the torque arm to caliper mounting point as a nice 90degree “elbow”

Also got a couple of rose joints on order so I can make up a nice custom length torque arm from two rose joints, a length of studding and a alloy tube machine to the correct length that slips over the studding so it looks pleasing to the eyes

All is now slowly coming together

Best wishes Al


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K2-K6:
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Looks particularly neat in this view and almost a standard build.

When modifying in this way it often has impact in that you have to do a double take and ask yourself if that's original or not  :) very elegant conversion.

allankelly1:
Hi all

Quick update

Now as I have the final design for the disc carrier have bit the bullet and now made my first aluminium part for this disc conversion project



Also as you can see for the disc carrier assembly I have added a smaller lip seal seal housing that mounts on the main carrier which both housed a shaft lip seal to prevent the ingress of dirt. And due the inner bore of the seal housing being less than the outrigger bearing OD, this seal housing also locks the outrigger bearing in its location bore to remove and possible side float




For the inner side of the disc carrier to increase radial location further, the rear of the disc carrier has a bore that locates on the original machined  OD on the hub boss that carries one of the wheel bearings,

And as you can see below there is also the required inner bearing spacer so that you can tighten up the wheel spindle correctly without placing any side loading on any of the three ball bearing inner race assemblies





Lastly disc bolts on and a spacer fits in the lip seal to keep any dirt out





Then fitted on the bike with an extra dummy 17mm spacer (to represent the caliper hanger thickness) and all looks good. And with wheel spindle tight the wheel and disk revolve as planned



Lastly finally after a few design changes got the caliper hanger right, that now has the required torque arm fitting, and now ordered two rose joints so I can make up the torque arm to length using the rose joints, a length of m8 studding and a nice alloy tube cut to the correct length to cover up the studding






I still have the disc to wheel hub locking part to finish and this is going to be a one piece part rather than four separate posts for strength but the project is making good progress and really happy so far

Next big job is to design and print the disc to hub locker and once this is done and both the disc locker and the hanger are in aluminium that’s pretty well the back wheel assembly complete

Think that’s all for now

Catch up soon

Best wishes Al


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