1、March 2011 Translation by DIN-Sprachendienst.English price group 8No 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、1.060.40!$rA2“1793015www.din.deDDIN 7338Rivets for brake linings and clutch liningsEnglish translation of DIN 7338:2011-03Niete fr Brems- und KupplungsbelgeEnglische bersetzung von DIN 7338:2011-03Rivets pour garnitures de frein et dembrayageTraduction anglaise de DIN 7338:2011-03SupersedesDIN 7338:
3、1993-08www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.11.11 13DIN 7338:2011-03 2 A comma is used as the decimal marker. Contents Page Foreword . 3 1 Scope . 4 2 Normative references . 4 3 Dimensions and masses 5 4 Technical delive
4、ry conditions . 11 5 Designation . 12 6 Application 12 DIN 7338:2011-03 3 Foreword 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 p
5、ossibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. The DIN 4000-163 tabular layout of product properties shall apply to rivets covered in this standard. Amendments This standard d
6、iffers from DIN 7338:1993-08 as follows: a) in Table 4 (formerly Table 2), the data relating to minimum tensile strength have been dropped and further materials have been included; b) equations for calculating head and shank masses have been included; c) normative references have been updated; d) th
7、e designation has been changed. Previous editions DIN 7338: 1955-05, 1964-07, 1983-12, 1993-05, 1993-08 DIN 74268 FI: 1942-03, 1944-09 DIN 7338:2011-03 4 1 Scope This standard specifies dimensions, masses and technical delivery conditions for three types of rivets with nominal diameters from 3 mm to
8、 10 mm for use with brake linings and clutch linings. The types covered here are solid rivets (type A), semi-tubular rivets (type B) and tubular rivets (type C). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, on
9、ly the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 101, Rivets Technical specifications DIN 4000-163, Tabular layout of product properties Part 163: Fasteners without thread DIN EN 1301-2, Aluminium and aluminiu
10、m alloys Drawn wire Part 2: Mechanical properties DIN EN 1652, Copper and copper alloys Plate, sheet, strip and circles for general purposes DIN EN 10139, Cold rolled uncoated mild steel narrow steel strip for cold forming Technical delivery conditions DIN EN 10263-2, Steel rod, bars and wire for co
11、ld heading and cold extrusion Part 2: Technical delivery conditions for steels not intended for heat treatment after cold working DIN EN 10263-5, Steel rod, bars and wire for cold heading and cold extrusion Part 5: Technical delivery conditions for stainless steels DIN EN 12166, Copper and copper al
12、loys Wire for general purposes DIN EN ISO 4042, Fasteners Electroplated coatings DIN 7338:2011-03 5 3 Dimensions and masses See Figures 1 to 4 and Tables 1 and 3. Figure 1 Type A, solid rivet Figure 2 Type B, semi-tubular rivet k k Head height not specified. Figure 3 Type C1, tubular rivet made from
13、 wire Figure 4 Type C2, tubular rivet drawn from strip The manufacturing process required, i.e. made from wire or drawn from strip, shall be indicated in the designation by adding the relevant code number (1 or 2, respectively) to symbol C. DIN 7338:2011-03 6 Table 1 Dimensions and masses Dimensions
14、 in millimetres d1h13 3 4 5 6 8 10 d2Nominal size 5,5 7,5 9,5 11,5 15,5 18 Tolerance h14 h15 d3min. 2,85 3,80 4,80 5,80 7,75 9,75 d4H13 1,7 2,7 3,5 4,2 6,0 7,5 d100 -0,4 1,66 2,62 3,42 4,12 5,18 7,18 e max. 1,5 2,0 2,5 3,0 4,0 5,0 k 0 -0,2 0,8 1,0 1,0 1,2 1,2 1,4 r max. 0,2 0,3 0,3 0,4 0,4 0,6 s 0,1
15、 0,50 0,50 0,60 0,75 1,20 1,20 s min. 0,4 0,4 0,5 0,6 1,0 1,0 t +0,5 0 a 3,5 4,0 4,0 6,0 8,0 10,0 b 4 5 6 8 10 12 See page 7 for a andb. DIN 7338:2011-03 7 Tabelle 1 (continued) l Mass (7,85 kg/dm3) kg per 1 000 units c Nominal size Limit deviations A B C A B C A B C A B C A B C A B C 5 +0,30 0 0,43
16、 0,36 0,21 0,84 0,66 1,33 1,02 6 0,48 0,41 0,24 0,94 0,76 0,36 1,48 1,18 0,59 2,31 7 +0,36 0 0,54 0,47 0,27 1,04 0,81 0,40 1,63 1,33 0,65 2,53 1,88 8 0,59 0,52 0,30 1,14 0,91 0,44 1,79 1,49 0,71 2,75 2,10 1,12 4,93 10 0,70 0,63 0,36 1,33 1,11 0,53 2,10 1,64 0,83 3,20 2,33 1,31 5,72 3,94 2,55 8,96 12
17、 +0,43 0 0,82 0,74 1,53 1,31 0,61 2,40 1,95 0,96 3,64 2,77 1,51 6,51 4,29 2,90 10,2 6,77 15 0,98 0,91 1,83 1,60 0,73 2,87 2,41 1,16 4,31 3,44 1,79 7,69 5,47 3,42 12,0 8,63 5,62 18 1,15 1,08 2,12 1,90 3,33 2,87 1,36 4,97 4,10 2,09 8,87 6,65 3,94 13,9 9,80 6,33 20 +0,52 0 1,26 1,19 2,32 2,09 3,64 3,18
18、 5,42 4,55 2,28 9,66 7,44 4,28 15,1 11,0 6,81 22 1,37 1,30 2,52 2,29 3,94 3,49 5,86 4,99 2,47 10,4 8,23 4,63 16,3 12,3 7,29 25 1,54 1,47 2,81 2,59 4,41 3,95 6,53 5,66 2,76 11,6 9,41 5,15 18,2 14,1 8,00 28 1,70 1,63 3,11 2,88 4,87 4,41 7,19 6,32 3,06 12,8 10,6 5,67 20,0 16,0 8,72 30 1,81 1,74 3,31 3,
19、08 5,18 4,72 7,64 6,77 3,25 13,6 11,4 6,01 21,3 17,2 9,20 32 +0,62 0 1,93 1,85 3,50 3,28 5,48 5,03 8,08 7,21 3,44 14,4 12,2 6,36 22,5 18,5 9,67 35 2,09 2,02 3,80 3,57 5,95 5,49 8,75 7,88 3,73 15,6 13,3 6,98 24,4 20,3 10,4 40 2,37 2,30 4,29 4,07 6,72 6,26 9,86 8,99 4,22 17,5 15,3 7,74 27,4 23,4 11,6
20、Rivets are generally manufactured in the sizes for which values of mass have been specified. For type C rivets drawn from strip, commercial sizes are those given above the continuous thick line. Intermediate lengths should be avoided if possible. The values of mass specified are for guidance only. a
21、For lengths above the dashed line. bFor lengths below the dashed line. See Table 2 for c. DIN 7338:2011-03 8 Table 2 Conversion factors for values of mass Material St, stainless steel Cu CuZn Al Conversion factor 1,000 1,134 1,070 0,344 Table 3 Shank and head masses (steel) Nominal size d13 4 5 6 8
22、10 Mass of shank per mm kg/1 000 units (7,85 kg/dm3) 0,055 5 0,098 6 0,154 0,222 0,394 0,616 Deduction in mass per mm bore kg/1 000 units (7,85 kg/dm3) 0,033 2 0,053 7 0,078 6 0,112 0,172 5 0,260 4 Mass of head kg/1 000 units (7,85 kg/dm3) 0,149 0,347 0,556 0,978 1,778 2,797 The values of mass given
23、 in Table 3 are guideline values calculated on the basis of the relevant nominal size. Values of mass for other dimensions or lengths shall be calculated using Equation (1): ( ) ftGGlGG += )(BKST(1) where GTis the mass, in kg/1 000 units; GSis the shank mass per mm, in kg/1 000 units; GKis the head
24、mass, in kg/1 000 units; GBis the deduction for the bore per mm, in kg/1 000 units; l is the shank length, in mm; t is the depth of bore, in mm; f is the conversion factor for density and number of units (= 0,001 33mmdm). The head mass (steel) shall be calculated using Equation (2): =0001422KkdG(2)
25、where GKis the head mass, in kg/1 000 units; DIN 7338:2011-03 9 d2is the nominal diameter of the head, in mm; k is the head height, in mm; is the density, in kg/dm3(for steel 7,85 kg/dm3). The shank mass (steel) per mm shall be calculated using Equation (3): =0001mm1421SdG (3) where GSis the shank m
26、ass per mm, in kg/1 000 units; d1is the nominal diameter of the shank, in mm; is the density, in kg/dm3(for steel 7,85 kg/dm3). The deduction in mass (steel) per mm bore shall be calculated using Equation (4): 0001mm1424B=dG (4) where GBis the deduction for the bore per mm, in kg/1 000 units; d4is t
27、he nominal diameter of the bore, in mm; is the density, in kg/dm3(for steel 7,85 kg/dm3). Intermediate sizes for d2and k shall be calculated using Equations (5) and (6). The results shall be rounded to the nearest 0,5 mm. new11121new2dddd = (5) In Equation (5) d2newis the head diameter for intermedi
28、ate sizes, in mm; d1newis the shank diameter for intermediate sizes, in mm; d11is the next highest shank diameter d1according to Table 1, in mm; d21is the next highest head diameter d2according to Table 1, in mm. DIN 7338:2011-03 10 1new11newddXk = (6) In Equation (6) knewis the head height for inte
29、rmediate sizes, in mm; X is the next highest value of k, in mm; d1newis the shank diameter for intermediate sizes, in mm; d11is the next highest shank diameter d1according to Table 1, in mm. The tolerances specified in this standard shall also apply to intermediate sizes. Dimension emaxis given by 0
30、,5 d1new. DIN 7338:2011-03 11 4 Technical delivery conditions See Table 4. Table 4 Technical delivery conditions MaterialaSteel, stainless steel Nonferrous metal Symbol Standard Symbol Standard Types A and B St = C4C or C10C, at the manufacturers discretion DIN EN 10263-2 Cu = Cu-DHP CuZn = CuZn37 A
31、l = EN AW-1050A Al 99,5 DIN EN 12166 DIN EN 12166 DIN EN 1301-2 X3CrNiCu18-9-4 DIN EN 10263-5 Type C St = C4C or C10C, at the manufacturers discretion DIN EN 10263-2 Cu = Cu-DHP DIN EN 12166 CuZn = CuZn37 DIN EN 1652 DIN EN 12166 St = DC 01 to DC 04 at the manufacturers discretion DIN EN 10139 Al =
32、EN AW-Al99,5 DIN EN 1301-2 Dimensional and geometrical tolerancesbDIN 101 Surface finish Standard finish: bright Where a specific protective coating is required (e.g. an electroplated coating complying with DIN EN ISO 4042), this shall be agreed when ordering. The tolerances and limit deviations spe
33、cified in Table 1 shall also apply after coating. Testing of mechanical properties DIN 101 Heat treatment For steel (types A, B and C made from wire): soft annealed (85 HV to 130 HV) or subject to agreement. For other materials: subject to agreement. Acceptance inspectioncDIN 101 aOther materials sh
34、all be subject to agreement. bDIN 101 shall apply with regard to the dimensional and geometrical tolerances unless otherwise specified in Clause 2 of this standard. cFor acceptance inspection, wall thickness s shall be deemed a major characteristic. DIN 7338:2011-03 12 5 Designation Designation of a
35、 rivet of type C (C) with a nominal diameter d1= 6 mm and a length l = 20 mm, made of steel (St): Rivet DIN 7338 C 6 20 St Designation of a rivet of type C, made from wire (C1), with a nominal diameter d1= 6 mm and a length l = 20 mm, made of steel (St): Rivet DIN 7338 C1 6 20 St 6 Application Table
36、 5 specifies hole diameters and countersink diameters dgand gives guideline values for the lengths of projection, z1to z3, as a function of the shank diameter d1. Figure 5 Type A, Length of projection and upset head configuration Figure 6 Type B, Length of projectionand upset head configuration Figu
37、re 7 Type C, Lengths of projection and upset head configurations DIN 7338:2011-03 13 Table 5 Hole diameters, countersink diameters and guideline values for lengths of projection Dimensions in millimetres Shank diameter d13 4 5 6 8 10 Clearance hole d7H12 3,1 4,2 5,2 6,3 8,4 10,5 Countersink diameter
38、 d9H14 6,5 8,5 10,5 12,5 16,5 19,0 Length of projection z1 l = 5 to 20 2,5 3,0 4,5 5,0 5,0 6,0 l = 22 to 40 6 6 7 Length of projection z2 l = 5 to 20 2,0 2,0 2,5 3,0 4,0 5,0 l = 22 to 40 3,5 4,5 5,5 Length of projection z3 2,5 3,0 3,5 4,0 4,5 5,0 The values of z1, z2and z3are for guidance only. Trial riveting is recommended, especially in the case of series production.
