DIN_6888相关标准规范

UD0621.886,6August 1956Drive Type Pastenings without Taper Aotion函Woodruff【ayaDimensions and Application6888Mitnehmerverbindungen ohne Ansug;Soheibenfedern,Abmessungen und AnwendungDimensions in mm02又Breaking of corneraRadius at bottom of keyway△Aa1-round】in shaft and hubChamferingRadiusingDesignation of a Woodruff key of widthat manufacturer's choiceb4 mm and height h 5 mmtoodruff key4×5DI6888Croas-seetion of Wood-Width b h91522,534且e1 ght hh12142.62.63.73,73,756,556,575for shaftabove34681085up to4681012for ahaftabove68101217diameter dup to810121722h4771010101316131619Pern.var.-01-01-01-01-01-017Chanfering or020202020202radiuaingPer他，arg+01+0,1+0.1+0,1+01+0,1LengthI38267667696696696612,651572126515218-57Weight (7.85 kg/dm3)kg/1000 pieces0,0310,1530,204041405180,6221,1018017240327width Tight fit P962)11522534sliding fit N9DepthSeries A121829292538533556,3Series B12■18■2929284156415666Pera.war.for A and B+01+0,1+0,1+0,1+0,1+01D1a■et●rd2+0.54771010101316131619WidthTight fit P9811d1gf4tJ96)1·1522534b2)DepthSories A)060811117Series B5)0608111111Perm.var.for A and B+01+01+0,1+0,1+0,1+0,102020,20,20202of keywayPorm.var.=01-01-0,1-0,1-01-0,1Only for automotive applicationsMaterial:st 60 (steel having a toneile strength of at least 60 kg/mm2 in the finiahedcondition)alternat1v■atr11t0bespeoified in orderallocation of the Woodruffkey eroae-sections appropriatethe ahaftsuatbe obaerved.Allocationall cases where the Woodruff key is used in the role of a feather key,..to transmit the whole of thetorque.Allocation II applies in all cases where the Woodruff key 1a used solely for locating the driving2)cottere or tapers being employed to transmit the torque.The lieted permiseible variations for keyway widths are intended for guidance only.It ie recommendedthat for the widths of broached keywaye ISA Class IT 8 be obeerved instead of IT 9 (similarly PBinatead of P9,N8 instead of N9 and J8 instead of J9).eiona t1 and (d1t),alao t2 and (d+t2)may appear aide by how-t Tor praratonacine une oe rPreferenee should be given to Seriee A(deep hub keyway)i thde comforme to DIX 6885 Sheet 15(t2 with back clearance).SeFies B (ahallow hub keyway)for machine tools;this conforms to DIN 6885 Sheet 2.6)wen the relationahip between the Woodruff key and the ahaft diameter ie based on Allocation II it depermisaible to use tolerance zone D 10 also.Cont1nu●d on pag02169