1、March 2011 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
2、1.140!$rA(“1793005www.din.deDDIN 470Sealing washersEnglish translation of DIN 470:2011-03VerschlussscheibenEnglische bersetzung von DIN 470:2011-03Pastilles dobturationTraduction anglaise de DIN 470:2011-03SupersedesDIN 470:1974-07www.beuth.deDocument comprises pagesIn case of doubt, the German-lang
3、uage original shall be considered authoritative.09.11 7DIN 470:2011-03 A comma is used as the decimal marker. Contents Page Foreword. 3 1 Scope . 4 2 Normative references . 4 3 Dimensions 4 4 Technical delivery conditions . 6 5 Examples of installation. 6 6 Designation . 7 2 DIN 470:2011-03 Foreword
4、 This standard has been prepared by Working Committee NA 067-00-09 AA Verbindungselemente ohne Gewinde of the Normenausschuss Mechanische Verbindungselemente (Fasteners Standards Committee). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
5、 rights. DIN shall not be held responsible for identifying any or all such patent rights. Amendments This standard differs from DIN 470:1974-07 as follows: a) the technical delivery conditions have been revised; b) dimension r has been changed to Sr ; c) normative references have been updated; d) th
6、e standard has been editorially revised. Previous editions DIN 470: 1944-08, 1954-08, 1974-07 3 DIN 470:2011-03 1 Scope This standard specifies requirements for sealing washers with nominal diameters from 3 mm to 125 mm. NOTE Such washers are used for sealing manufactured holes in castings or other
7、processes or as oil seals in engine blocks. 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 ame
8、ndments) applies. DIN 6930-1, Stamped steel parts Part 1: Technical delivery conditions DIN 6930-2, Stamped steel parts Part 2: General tolerances DIN EN 10130, Cold rolled low carbon steel flat products for cold forming Technical delivery conditions DIN EN 10139, Cold rolled uncoated mild steel nar
9、row steel strip for cold forming Technical delivery conditions DIN EN ISO 1101, Geometrical Product Specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-out 3 Dimensions See Figure 1 and Table 1. The tolerances specified relate to washers in their uncoated c
10、ondition. Where compliance with these tolerances is also required for washers after application of the coating, this shall be specially agreed to avoid any discrepancies. NOTE It is generally recommended that the applicability of the tolerances be agreed in advance. Geometrical toleranceas in DIN EN
11、 ISO 1101 aThis surface to be made flat over the width approximately equal to the shoulder height of the sinking. bBurr side Figure 1 Dimensions of sealing washer (notation) 4 DIN 470:2011-03 Table 1 Dimensions Dimensions in millimetres d h Srs Mass (7,85 kg/dm3) kg/1 000 units js11 0,15 3 1,20 3 0,
12、8 0,047 4 1,34 4 0,8 0,084 5 1,35 6 0,8 0,132 6 1,67 7 1,0 0,236 8 1,94 9 1,0 0,517 10 2,67 12 1,6 1,05 12 2,77 16 1,6 1,49 14 2,94 19 1,6 2,02 16 3,11 22 1,6 2,63 18 3,28 25 1,6 3,35 20 3,45 28 1,6 4,12 22 4,09 30 2,0 7,10 25 4,38 34 2,0 8,98 28 4,53 40 2,0 11,1 (30) 4,77 42 2,0 12,6 32 4,95 45 2,0
13、 13,2 (34) 5,11 48 2,0 14,8 36 5,36 50 2,0 16,7 (38) 5,60 52 2,0 19,7 40 5,70 56 2,0 20,5 (42) 5,80 60 2,0 22,6 45 6,15 63 2,0 26,1 (48) 6,38 68 2,0 29,5 50 6,62 70 2,0 32,1 (52) 6,66 75 2,0 34,5 56 7,06 80 2,0 40,2 (60) 7,47 85 2,0 46,3 63 7,70 90 2,0 50,9 80 10,41 112 3,0 134,0 100 12,23 140 3,0 2
14、04,0 125 14,20 180 3,0 313,0 NOTE Bracketed sizes should be avoided if possible. 5 DIN 470:2011-03 4 Technical delivery conditions See Table 2. Table 2 Technical delivery conditions General requirements DIN EN 10130, DIN EN 10139 Property classa(material)bSteel, at the manufacturers discretion Mecha
15、nical properties Standard DIN EN 10130, DIN EN 10139 Product grade m Workmanship Standard DIN 6930-2 Surface finish Bright Other protective coating shall be subject to agreement. Acceptance inspection DIN 6930-1 applies with regard to acceptance inspection. aOther property classes or specific streng
16、th properties shall be subject to agreement. bOther materials shall be subject to agreement. 5 Examples of installation See Figure 2. a) Installation for d 6 mm b) Insertion tool c) Installation for d 6 mm Key 1 Sealing surface If necessary a sealing compound shall be applied to the sinking before t
17、he washer is installed. NOTE If necessary the sealing washers may be peened tight after fitting. aThis surface to be made flat over the widths approximately equal to the shoulder height of the sinking. Figure 2 Examples of installation 6 DIN 470:2011-03 7 6 Designation Designation of a sealing washer with a diameter d = 28 mm made of steel (St): Sealing washer DIN 470 28 St
