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Stainless steel shaft

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Clive Hartland16/01/2012 21:05:08
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2929 forum posts
41 photos
I have just bought some stainless steel 5mm shaft and its not round, put in the triple plain bearings and it catches as it is turned.
Measuring it shows a slight ovality but its hard to measure.
Does anyone know of where I can get precision ground 5mm st steel shaft?
I have looked at HPC but no luck there.
 
Clive
jason udall16/01/2012 21:49:36
2032 forum posts
41 photos
maybe
smiths metals? Poole 01202893712
RS? 01536 201201
Rs may be better free del.
Smiths cheaper by foot but add carr...
Weldsol16/01/2012 22:05:28
74 forum posts
You could look at the CNC parts suppliers as they offer stainless for the linear bearing shafts. The only thing is it's very hard but is machineable with carbide tipped tooling
 
Paul
S.D.L.16/01/2012 22:07:03
236 forum posts
37 photos
Its a common problem with center less grinding and needs a mic with a vee anvill to detect as it can measure the same at any position with a std mic.
 
See here.
 
 
And here
 
 
You might be able to detect in raw stock by rotating in a vee block with DTI mtd.
 
Steve Larner

Clive Hartland16/01/2012 22:09:25
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2929 forum posts
41 photos
I will look at the RS cat. tomorrow at work, thanks for your help.
 
Clive
jason udall16/01/2012 22:20:32
2032 forum posts
41 photos
other smiths msybe local to you.
jason udall16/01/2012 22:27:23
2032 forum posts
41 photos
btw how out of round...guess enough to foul

We used to use "gauges" with tenth micron resolution with centerless grinding looked round on them but wouldn't turn between mic anvils.
jason udall16/01/2012 22:27:28
2032 forum posts
41 photos
.. [can not find way to delete duplicate post]

Edited By jason udall on 16/01/2012 22:33:24

John Haine17/01/2012 08:25:33
5563 forum posts
322 photos
Try typing rswww.com into your browser - much easier than using their catalogue
David Colwill17/01/2012 09:39:11
782 forum posts
40 photos
Is this condition described as obround?
Dave.

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