【转帖】otal run out concentricity

yang686526

total run out & concentricity
does a total tun out call out on the part also controls the concentricity?
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asme y14.5-1994
section 6.7.1.2.1 - circular run-out may be used to control the cumulative variations of circularity and coaxiality.
section 6.7.1.2.2 - total run-out is used to control cumulative variations of circularity, straightness, coaxiality, angularity, taper and profile of a surface.
heckler
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(in reference to david beckham) "he can't kick with his left foot, he can't tackle, he can't head the ball and he doesn't score many goals. apart from that, he's all right."  -- george best
yes - total runout and also circular runout control concentricity.
circular runout controls roundness and concentricity while total runout includes circular runout but also controls the shape of the feature.
positional tolerances can also be used to control concentricity.
dave d.