DIN_6880相关标准规范

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DIN_6880相关标准规范
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UD0669.14422.4:621.886.6Apr111975丽Bright steel for key barsDimensions,limit deviations,mass6880Blanker Keilstahl;MaBe,zulassige Abweichungen,GewichteDimensions in ma1.ScopeThis Standard applies to bright key steel in bars of square,rectangular or flat-rectangularcross-section in the nominal dimensions indicated in Tables 1 and 2 and in the steel speci-fied in Section 6.This Standard does not apply to bright flat steel (see DIN 174)and bright square steel (seeDN178).2.DefinitionBright key steel is descaled and uncut cold formed steel and has a comparatively smooth,bright surface and an appropriately high grade of accuracy;it is intended for making taperkeys and parallel keys.squarerectangularflat-rectangularEdges broken all roundChamferRadiusingsharp-edgedat manufacturer's choice(S)3.Designation2o0 ono5t86"g59g1t地odgen broken und8r1ahb·8■and thoke8axey8tee118×11D☐6880Designation of a sharp-edged key steel (SK)of width b 56 mm and thickness h 32 mm insteei C 45 K:ey stee18K56×32D6880Table 1.Square key steelPermisaiblevariationSuitable forbdimensionWeightTypeaccording tob x bGib-headParallelGib-Gib-headISO toler-parallelkeya andheadsaddle1)keyataprkeyh9cording toccording to0kg/mDN6884DIN 6885DIN 6887DN6889。min.max.DN6886(2×2)-0.0260.03142×23X30,160,250.07073X3(4X4)0,1264X46X5-0,03001965X56X60,250,40,2836X67X70,38522)22)昌风8-0,0380,5038X58×3,510×100,78510×612×121.1312×612X814×14-0,0430,40,61.5414×614×916×162.0116X716X1016X618X182.5418×1120X2022X22-0.0620,60,83,1420X1220X63,8022×1422X71)ion in braokote oan only be made from the atandard rollod ateol dimonionn by ropeated2)Used only for parallel keye for toole according to DIN 138.159
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