DIN_6905相关标准规范

UDC621.882.54:621.882.2December 1990Spring lock washersDINfor screw and washer assemblies6905Federringe fur Kombi-SchraubenSupersedes December 1972 edition.In keeping with current practice in standards published by the International Organization for Standardization (ISO),a commahas been used throughout as the decimal marker.Dimensions in mm1Scope and field of applicationSpring lock washers as specified in this standard are intended for use with screw and washer assemblies as specified inDIN 6900 Part 3.They are designed for use with bolted connections with bolts of a property class below 8.8 (as specified inISO 898 Part 1).Spring lock washers are intended to counteract loosening of such connections (e.g.as a result of setting)(cf.DIN 267 Part 26).They do not effectively prevent loosening of the connection under varying radial load and are thusdesigned for use with short screws predominantly subject to thrust.2DimensionsSection A-A(enlarged)AZone in which tang ends are curvedc≤0,9smaSpring lock washers may be used both for bolts with right-hand and with left-hand thread.Table.d20Approx.massNom-minm角(7.85kg/dm3.Forinalnommax.Nommin.max.Nom-min.max.per 1000 unitsthreadsizeinalinalinalsize2)in kgsizesizesizemin.max2,252,252,354.5510,91,10.60.50,7091,10,10,06M2.527272.85.61,31,21,40.70.60,8111,30.10,09M33,23,23,36.11.31,21,4070.60.81,11.30,10,10M3.53.63.63.756.95151,41,60.80,70.91,21.40,20.15M44.554.554.758.5518171.910.9111.51.70.20,30M55.55.55,7112.52352.65131.21.42220.30.64M67.4747.6513.9532.853.151.615172.452,750,.5123M89,39.39.5516.953.53.33.71.81,71.92853.15052.00M1011)1111.319,743,84.22.11.952.253.353.6513.10M12)For this size,no specifications have been made for the residual spring force in DIN 267 Part 26.2)As specified in DIN 267 Part 26.Continued on page 2203