Swinging arm sealed bearing

[Colin]

Colin
everything you've said is correct.
I couldn't source any 22mm bearings that I felt would be upto the job, the inside dia was to small so the shaft would of had to of been to small.Also I liked the idea of larger bearings.
The Ti flange bol bolt was just me pimping it up a bit, a steel 8.8 grade screw with washer would work perfectly well and yes the drilling of the threads are exactly as you point out.

Simon

Great!
Is this a suitable reamer do you think?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260370457778
21.28MM-- 23.78MM so a little bit shy of 24mm but maybe OK?

Col.

[DugB]

If you're going to do one, or even multiple swingarms, it's definitely worth it to buy a reamer, I found. I had my 4000 swingarm reamed at my local machine shop, and left there feeling reamed myself ($80 lighter). Had I known in advance I probably would have bought one.

I'd contribute some cash for one if I could borrow it once the spindle kits are ready (if that's still in the works). Ideally it would be in the US, though, as international shipping rates on something that heavy would make it less of a deal.

- Doug :-)

[Willie_B]

I was $250 lighter when I had my swingarm and a fork upper mount reamed out. So if possible, it would be better to buy one.

[shovelon]

You need something like Simon has. This is the best I could muster.
Adjustable reamer with pilot found at McmasterCarr.

Terry

[Colin]

You need something like Simon has. This is the best I could muster.
Adjustable reamer with pilot found at McmasterCarr.

Terry

My suggestion looks similar?

what does the pilot do?

Col.

[Willie_B]

The pilot keeps the side you are reaming straight with the other side.

[Colin]

aaaahh, I was planning to ream through from the non done side to the side being done to maintain concentricity either by eye or using some sort of spacers.

Col.

[Willie_B]

[Simon]

Hi Simon,
Keep your head down out there mate!

I bumped into a guy who knew you the other day. He had an OZ and you made him up an axle . He works in Gosport  for  UKBikestore . Unfortunatly I didn't get his name , but he was helpfull in sorting me out anIS PM adapter as I have fitted some AM3's in 140mm guise to mine now.

He has semi retired his OZ now, but recommended the bearing conversion, especially as we were both running 55mm stroke shocks, mine SPV air, and his a 5th element.

Rob

     That would be Mark Spruce (Sprucey on this site) he'sone of the good guys I recommend his store to anyone.  Simon

[Simon]

Thats the reamer I use and as you can see the tapered pilot keeps both sides alined.
It can be tricky, I use a smaller reamer to start and work up remember take your time only ream a very little at a time.
Simon

[sammydog]

When converting to sealed bearings, is it only the swingarm that needs to be reemed?

Does any modification need to be made to the mainframe?

[Willie_B]

Yes, just swingarm machining. Nothing to the frame.