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PostPosted: 01 Apr 2011 23:07 
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The powder coaters have shot blasted the bearing seats on my rear wheel and now I can pull the bearings out with my fingers :(

Anybody got a spare they want to sell ?


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PostPosted: 01 Apr 2011 23:19 
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Avalaugh wrote:
The powder coaters have shot blasted the bearing seats on my rear wheel and now I can pull the bearings out with my fingers :(

Anybody got a spare they want to sell ?

Need to be quick i think?
http://cgi.ebay.co.uk/Buell-XB12S-Light ... 3366811f08

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PostPosted: 02 Apr 2011 07:38 
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proff. patpending
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I think you need to share with us who did it so nobody else uses them...

Are they going to replace the wheel?

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PostPosted: 03 Apr 2011 10:21 
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Will have a chat on Monday, but it's doubtful as I was getting it done on the cheap for cash.


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PostPosted: 03 Apr 2011 10:59 
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Maybe it would be prudent for people to remove the bearings after blasting in the future to prevent this type of problem...................also i'm sure that somebody somewhere would be able to metal spray them to reclaim a damaged bearing surface if needed.

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PostPosted: 04 Apr 2011 09:46 
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Is bead blasting a no no too then ?

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PostPosted: 04 Apr 2011 10:09 
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bueller ball breaker wrote:
Is bead blasting a no no too then ?


Best to never blast the bearing or gasket surfaces ;)

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PostPosted: 04 Apr 2011 13:53 
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proff. patpending
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A general rule of thumb is not to blast anything not painted, so bearing surfaces, disc interfaces and to a lesser extent but no less important the sprocket interface.

Liquid metal to rebuild a bearing bore sounds like an accident waiting to happen Kev.

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PostPosted: 04 Apr 2011 14:09 
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pash wrote:
Liquid metal to rebuild a bearing bore sounds like an accident waiting to happen Kev.


I'm talking more of professionally applied metal spraying Pash ............Can be very hard wearing and there are lots of various materials available nowadays......... Think nickasil plated bores for example........also once made to the correct size again there will be no relative movement between the parts.

Also some of the epoxy type repair materials available in tubes etc nowadays are very very good products and often stronger than the base material they are used on.
Actually some of the two part products available as a stick would be very very good as a get you home material for anything like a leaking Rad or a cracked casing they are that good.

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PostPosted: 04 Apr 2011 14:50 
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Although the situation is not fully comparable, this guy builds undersized stearinghead bearings, which are then glued into place using Loctite 638, mainly to compensate out-of-round bores and disalignment.

Just an idea, I know that a wheel is charged with a moving load, in opposite of a more static at the stearing heads. IIRC there is some special fluid from loctite just made to fill gaps and hold the outer race of a bearing. The worst thing that could happen is that the bore will continue to widen, so the wheel will be toast completely, but IMO it's worth a try, a cheap and easy fix and you gain some time to look for a new wheel.

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PostPosted: 04 Apr 2011 16:35 
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kevmean wrote:
pash wrote:
Liquid metal to rebuild a bearing bore sounds like an accident waiting to happen Kev.


I'm talking more of professionally applied metal spraying Pash ............Can be very hard wearing and there are lots of various materials available nowadays......... Think nickasil plated bores for example........also once made to the correct size again there will be no relative movement between the parts.

Also some of the epoxy type repair materials available in tubes etc nowadays are very very good products and often stronger than the base material they are used on.
Actually some of the two part products available as a stick would be very very good as a get you home material for anything like a leaking Rad or a cracked casing they are that good.



I've had crank journals brought back to size using metal spraying, but these have obviously been ferrous metal. Can this kind of thing be done to ali/mag alloys?

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PostPosted: 04 Apr 2011 17:07 
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http://inotal.com/?q=webpage/Aluminium_ ... l_spraying

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PostPosted: 04 Apr 2011 17:10 
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proff. patpending
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I would just buy another wheel...

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PostPosted: 04 Apr 2011 17:14 
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pash wrote:
I would just buy another wheel...

:D Just thinking of options for when people can't find a replacement ;)

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PostPosted: 04 Apr 2011 17:50 
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kevmean wrote:
http://inotal.com/?q=webpage/Aluminium_wires_for_metal_spraying



:yup: 8-)

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