ASME-Y14.5M

“x”areneworrevisedfromthepreviousY14.5M,1982standard./ISOASMEY14.5,1994ISO“x”Y14.5M,1982SYMBOLASMEY14.5MISOFEATURECONTROLFRAMEDIAMETER/SPHERICALDIAMETER/ATMAXIMUMMATERIALCONDITIONATLEASTMATERIALCONDITIONREGARDLESSOFFEATURESIZENONE/NONE/PROJECTEDTOLERANCEZONEXFREESTATE/XTANGENTPLANE(Proposed)XSTATISTICALTOLERANCENONE/XRADIUS/RRXCONTROLLEDRADIUS/CRNONE/SPHERICALRADIUS/SRSRBASICDIMENSION/(theoreticallyexactdimensioninISO)ISOXDATUMFEATURE**DATUMTARGETTARGETPOINT/DIMENSIONORIGINREFERENCEDIMENDION/(AuxiliarydimensioninISO)/ISO(50)(50)(implied)/Note:*Maybefilledornotfilled/*RADIUS,CONTROLLEDRADIUS/Therearetwotypesofradiitolerancethatcanbeapplied,theradiusandcontrolledradius.Theradius(R)toleranceisforgeneralapplications.Thecontrolledradius(CR)isusedwhenitisnecessarytoplacefurtherrestrictionsontheshapeoftheradius,asinhighstressapplications./R(CR)Note:ThisisachangefromthepreviouseditionsoftheY14.5standard.Thedefinitionofthetolerancezonefortheformertermtangentradius,previouslynotedbythesymbolR,isnowmeanttoapplytoacontrolledradius(symbolCR)./Y14.5RCR:theassemblytoleranceisequaltothesquarerootofthesumofthesquaresoftheindividualtolerances./Statisticaltolerancingmaybeappliedtofeaturestoincreasetolerancesandreducemanufacturingcost.Toensurecompatibility,thelargertoleranceidentifiedbythestatisticaltolerancesymbolmayonlybeusedwhereappropriatestatisticalprocesscontrolwillbeused.Anotesuchastheoneshownbelowshallbeplacedonthedrawing./*/**TheRFSsymbolhasbeeneliminatedfromtheASMEY14.5M,1994standard.Itisapplicableinearlierversions./*RFSASMEY14.5M,1994w