Circularity tolerance (out of round condition)
Circularity tolerance (out of round condition)
(OP)
If there is not a "circularity" requirement on the the drawing then is there an "assumed" circularity tolerance on any given diameter. I.E. a percentage of the nominal size?





RE: Circularity tolerance (out of round condition)
So if your tolerance on diameter is +-.001 you have reasonable circularity.
If +- .010 not so good.
Nothing based on % as far as I know.
KENAT, probably the least qualified checker you'll ever meet...
RE: Circularity tolerance (out of round condition)
There is no assume percentage for circularity.
Dave D.
www.qmsi.ca
RE: Circularity tolerance (out of round condition)
Bradley
SolidWorks Premim 2007 x64 SP4.0
PDM Works, Dell XPS Intel(R) Pentium(R) D CPU
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RE: Circularity tolerance (out of round condition)
Chris
SolidWorks 07 4.0/PDMWorks 07
AutoCAD 06
ctopher's home (updated 04-21-07)
RE: Circularity tolerance (out of round condition)
Back to the original question, a diameter tolerance gives an equal control over circularity. A diameter tolerance of +/- .010 would limit the circularity error to .020 at worst. There is no assumed relationship between circularity and the nominal diameter.
Evan Janeshewski
Axymetrix Quality Engineering Inc.
RE: Circularity tolerance (out of round condition)
A +/- tolerance on a diameter creates limits which must contain whatever form gets fabricated. If the diameter is 50+/-0.1mm, the as-fabricated form must be contained within two concentric circles of 49.9mm and 50.1mm. You also need a location tolerance to set the position of the centre of the round feature.
See ASME Y14.5M-1994, section 2.7.1. This is Rule #1, as noted above.
JHG
RE: Circularity tolerance (out of round condition)
For another shapes is possible a circularity error until the diameter tolerance, as explained in the following link:
http://www.tec-ease.com/tips/november-04.htm
Ademir
RE: Circularity tolerance (out of round condition)
Thanks AGain.
RE: Circularity tolerance (out of round condition)
Powerhound
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