1、August 2009 Translation by DIN-Sprachendienst.English price group 5No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、21.060.30!$sX“1809653www.din.deDDIN 7349Plain washers for bolts with heavy clamping sleevesEnglish translation of DIN 7349:2009-08Scheiben fr Schrauben mit schweren SpannhlsenEnglische bersetzung von DIN 7349:2009-08Rondelles pour vis goupilles lastiques de type robusteTraduction anglaise de DIN 734
3、9:2009-08SupersedesDIN 7349:1974-07www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.609.11 DIN 7349:2009-08 A comma is used as the decimal marker. Contents Page Foreword. 3 1 Scope . 4 2 Normative references . 4 3 Dimensions 4 4 Tec
4、hnical delivery conditions . 6 5 Designation . 6 2 DIN 7349:2009-08 Foreword This standard has been prepared by Working Committee NA 067-04-02 AA Scheiben und Ringe of the Normenausschuss Mechanische Verbindungselemente (Fasteners Standards Committee). Amendments This standard differs from DIN 7349:
5、1974-07 as follows: a) normative references have been updated; b) the technical delivery conditions have been revised; c) the example of designation has been revised. Previous editions DIN 7349: 1959-11, 1960-11, 1974-07 3 DIN 7349:2009-08 1 Scope This standard specifies requirements for plain washe
6、rs for bolts with heavy clamping sleeves. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amend
7、ments) applies. DIN EN ISO 3269, Fasteners Acceptance inspection DIN EN ISO 4042, Fasteners Electroplated coatings DIN EN ISO 4759-3, Tolerances for fasteners Part 3: Plain washers for bolts, screws and nuts Product grades A and C DIN EN ISO 8752, Spring-type straight pins Slotted, heavy duty DIN EN
8、 ISO 10683, Fasteners Non-electrolytically applied zinc flake coatings 3 Dimensions Figure 1 Dimensions of plain washer for bolt (notation) 4 DIN 7349:2009-08 Table 1 Dimensions Dimensions in millimetres d1d2s Mass (7,85 kg/dm3) kg/1 000 units Clamping sleeves as in DIN EN ISO 8752 Nominal diameter
9、For thread size 3,2 9 1 0,436 6 3 4,3 12 1,6 1,24 8 4 5,3 15 2 2,43 10 5 6,4 17 3 4,59 12 6 8,4 21 4 9,15 16 8 10,5 25 4 12,7 18 10 13 30 6 27,1 21 12 15 36 6 39,6 25 14 17 40 6 48,5 28 16 19 44 8 77,4 32 18 21 44 8 73,4 35 20 23 50 8 97,1 38 22 25 50 10 116 40 24 28 60 10 174 45 27 31 68 10 226 50
10、30 5 DIN 7349:2009-08 6 4 Technical delivery conditions Table 2 Technical delivery conditions MaterialaSteel Mechanical properties Hardness classb200 HV up to s 6 100 HV s 6 Product grade A Workmanship Standard DIN EN ISO 4759-3 Type Heavy dutyClamping sleeves Standard DIN EN ISO 8752 Surface finish
11、 Without special treatment, i.e. washers to be supplied as processed, treated with a protective lubricant or other coating, as agreed between customer and supplier. DIN EN ISO 4042 applies with regard to electroplating. DIN EN ISO 10683 applies with regard to zinc flake coatings. Acceptance inspecti
12、on DIN EN ISO 3269 applies with regard to acceptance inspection. a Other materials shall be subject to agreement. bOther hardness classes shall be subject to agreement. 5 Designation Designation of a plain washer with a hole diameter d1= 17 mm, of hardness class 200 HV, made of steel (St): Plain washer DIN 7349 17 200 HV St
