1、July 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 43
2、.040.50!$HU“1933750www.din.deDDIN 74361-3Disc wheels for motor vehicles and trailers Part 3: Dimensions and fastening devices for hub-centering,English translation of DIN 74361-3:2011-07Scheibenrder fr Kraftwagen und Anhngefahrzeuge Teil 3: Anschlussmae und Befestigungselemente fr Mittenzentrierung,
3、Englische bersetzung von DIN 74361-3:2011-07Roues pleines pour vhicules routiers et remorques Partie 3: Dimensions de raccordement et lments de fixation pour le centrage sur lemoyeu,Traduction anglaise de DIN 74361-3:2011-07SupersedesDIN 74361-3:1979-11www.beuth.deDocument comprises 13 pagesIn case
4、of doubt, the German-language original shall be considered authoritative.07.13 DIN 74361-3:2011-07 2 A comma is used as the decimal marker. Contents Page Foreword . 3 1 Scope . 4 2 Normative references . 4 3 Dimensions, designation . 4 3.1 Wheel attachment . 4 3.2 Wheel nuts . 8 3.2.1 Wheel nuts wit
5、h thrust plates N 8 3.2.2 Wheel nuts with short guide shaft K. 9 3.2.3 Wheel nuts with long guide shaft L 9 3.2.4 Dimensions of wheel nuts with short guide shafts and wheel nuts with long guide shafts . 11 4 Technical delivery conditions . 11 4.1 Wheels . 11 4.2 Wheel nuts and wheel bolts . 12 4.2.1
6、 Property class and material . 12 4.2.2 Designs 12 4.2.3 Surface . 12 4.2.4 Marking 12 Bibliography . 13 DIN 74361-3:2011-07 3 Foreword This document has been prepared by Working Committee AA-I19 Rder of the Normenausschuss Automobiltechnik (NAAutomobil) (Road Vehicle Engineering Standards Committee
7、) of DIN, in which representatives of vehicle, wheel and axle manufacturers, and technical inspection bodies participate. This standard corresponds in part to International Standard ISO 4107, Commercial vehicles Wheel-hub attachment dimensions. Amendments This standard differs from DIN 74361-3:1979-
8、11 as follows: a) all figures have been updated to conform to the state of the art; b) tolerances have been updated and position tolerances have been introduced where necessary; c) symbols for dimensions have been harmonized with ISO 4107; d) Table 1: Wheel attachment 10 225 has been added; e) Table
9、 2: Individual dimensions have been revised to conform to the state of the art; f) subclause 3.2.2 and Table 3 have been added. Previous editions DIN 74361-3: 1976-10, 1979-11 DIN 74361-3:2011-07 4 1 Scope This standard applies to hub-centered disc wheels for commercial motor vehicles and trailers.
10、It specifies the connecting dimensions and fastening components for hub-centering. Details which are not described here and which depend on the specific design such as wheel disc form and joint between rim and wheel disc etc. are to be selected appropriately. 2 Normative references The following ref
11、erenced documents are indispensable for application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 7829, Rims and wheels Marking DIN EN 12476, Phosphate conversion c
12、oatings of metals Method of specifying requirements DIN EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and bolts with specified property classes Coarse thread and fine pitch thread DIN EN ISO 898-6, Mechanical properties of fasteners made
13、of carbon steel and alloy steel Part 6: Nuts with specified test forces, fine-pitch thread *)DIN ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts; Product grades A, B and C *)DIN EN ISO 6157-2, Fasteners Surface discontinuities Part 2: Nuts ISO 4107, Commercial vehicles Whe
14、el-hub attachment dimensions 3 Dimensions, designation 3.1 Wheel attachment 3.1.1 The dimensions of single-wheel attachments shall correspond to those shown in Figure 1, Figure 2 and Table 1. *)Translators note. DIN EN ISO 898-6 has been withdrawn and replaced by DIN EN ISO 898-2, Mechanical propert
15、ies of fasteners made of carbon steel and alloy steel Part 2: Nuts with specified property classes Coarse thread and fine pitch thread. *) Translators note. The German original is incorrect. The standard number should read “DIN EN ISO 4759-1”. DIN 74361-3:2011-07 5 Figure 1 Single-wheel attachment D
16、esign example Figure 2 Single-wheel attachment Detail X 3.1.2 The dimensions of twin-wheel attachments shall correspond to those shown in Figure 3, Figure 4 and Table 1. DIN 74361-3:2011-07 6 Figure 3 Twin-wheel attachment Design example Figure 4 Twin-wheel attachment Detail Y DIN 74361-3:2011-07 7
17、Table 1 Dimensions of single-wheel and twin-wheel attachment Dimensions in millimetres N D1fD2eD3aD4D5bD6d sStsAld+1 0 +0,2 0 min. 0 0,2 0 5 max max. Steel Al-T2 Al-T3 Steel Al 6 205 205 21 21 26 161 161,2 255 160,8 250 M 18 1,5 12 22 6 245 245 21 21 26 202 202,2 295 201,8 290 M 18 1,5 12 22 8 275 2
18、75 24 24 30 221 221,2 325 220,8 320 M 20 1,5 16 25 26 26 32 M 22 1,5 10 225 225 26 26 176 176,2 275 175,8 270 M 22 1,5 16 25 10 335 335 26 26 32 281 281,2 390 280,8 385 M 22 1,5 16 30/32 cKey N main connecting dimensions: number of bolt holes bolt circle diameter D1bolt circle diameter D2bolt hole d
19、iameter D3centre bore diameter D4diameter of flat surface of wheel disc d thread of corresponding bolt (preferred) D5centre hub diameter D6diameter of wheel contact surface sStsteel wheel disc thickness sAlaluminium wheel thickness Al-T2 D2for aluminium wheels which are attached using wheel nuts as
20、listed in Table 2. Al-T3 D2for aluminium wheels which are attached using wheel nuts with guide shaft as listed in Table 3. aMeasured in the as-delivered condition. No recesses on the wheel discs centre bore diameter. Chamfer of the centre bore D3with min. 1,5 45. b Tolerance 0,5 permitted for specia
21、l applications.c For rim widths greater than 9,00. dThe wheel disc thickness shall be taken into account when specifying the bolt length. The minimum number of fully engaged threads listed in Table 2 and the assembly dimensions listed in Table 3 are to be achieved. eIn wheels with punched bolt holes
22、, a tolerance of +3/0 applies to D2on the inner side of the wheel. The edges of the bolt holes shall be deburred or chamfered. fD3is the reference element for position tolerances. DIN 74361-3:2011-07 8 3.2 Wheel nuts 3.2.1 Wheel nuts with thrust plates N Wheel nuts with thrust plates N for steel and
23、 aluminium wheels shall correspond to Figure 5 and Table 2. Dimensions in millimetres Key 1 marking as in Clause 4 a15 permitted if desired bnot convex Figure 5 Wheel nut with thrust plate N Table 2 Dimensions of wheel nuts with thrust plate N Dimensions in millimetres Thread Wheel nuts with thrust
24、plate N Number of load-bearing, completely engaged thread pitches n min. d SW h15d2min. d3max. h max. W min. M 18 1,5 27 23 40 27 5 10 M 20 1,5 30 26 45 29 5,5 11 M 22 1,5 32 28 47 34 6 12 Designation of a wheel nut with thrust plate N (N) with thread diameter d = M 22 1,5 (22) and property class 10
25、 (10): Wheel nut DIN 74361 N 22 10 DIN 74361-3:2011-07 9 3.2.2 Wheel nuts with short guide shaft K Wheel nuts with a short guide shaft K for attaching single-wheel and twin-wheel aluminium wheels shall correspond to Figure 8 and Table 3. Figure 6 Single-wheel attachment with wheel nuts with short gu
26、ide shaft K Design example Figure 7 Twin-wheel attachment with wheel nuts with short guide shaft K Design example Dimensions in millimetres anot convex Figure 8 Wheel nut with short guide shaft K Designation of a wheel nut with short guide shaft K (K) with thread diameter d = M 22 1,5 (22) and prope
27、rty class 10 (10): Wheel nut DIN 74361 K 22 10 3.2.3 Wheel nuts with long guide shaft L Wheel nuts with a long guide shaft L for attaching twin-wheel aluminium wheels shall correspond to Figure 10 and Table 3. DIN 74361-3:2011-07 10 Figure 9 Twin-wheel attachment with wheel nuts with long guide shaf
28、t L Design example anot convex Figure 10 Wheel nut with long guide shaft L Designation of a wheel nut with long guide shaft L (L) with thread diameter d = M 22 1,5 (22) and property class 10 (10): Wheel nut DIN 74361 L 22 10 DIN 74361-3:2011-07 11 Table 3 Assembly dimensions for wheel nuts K and L D
29、imensions in millimetres Thread d l min.ah1min.bM 18 1,5 8,9 6,5 M 20 1,5 9,3 7,5 M 22 1,5 9,7 8,5 aChamfer of the bolt thread shall not be included in the dimension. bChamfer of the nut thread shall not be included in the dimension. l = Distance between flat surface of the wheel to the end of the f
30、ull bolt length. 3.2.4 Dimensions of wheel nuts with short guide shafts and wheel nuts with long guide shafts Table 4 Dimensions of wheel nuts with short guide shafts and wheel nuts with long guide shafts, K and L Dimensions in millimetres Thread d SW h15 h min. Washer height t max. Wheel nuts with
31、short guide shaft K Wheel nut with long guide shaft L d1 0,3 d2 0,25 d3max. W min. h2 amax. h2 amin. M 18 1,5 27 24 7,5 9 27 20 25 44 5,5 M 20 1,5 30 25 9,5 11 27 22,5 28,5 52 6,0 M 22 1,5 32 26 11,0 19 35 24,5 30,5 54 6,5 aThe exact shaft length shall be selected to suit the application; it shall b
32、e less than the disc width(s). 4 Technical delivery conditions 4.1 Wheels Bolt holes shall be deburred. Depending on the intended use, the chamfer on the centre bore can be made either on the attachment face or on both sides of the wheel disc. Disc wheels shall be marked as specified in DIN 7829. DI
33、N 74361-3:2011-07 12 4.2 Wheel nuts and wheel bolts 4.2.1 Property class and material Body of wheel nut: property class 10 as specified in DIN EN ISO 898-6, hardened and tempered to 247 to 335 HB. Thrust plate: 34CrMo4, optionally 42 CrMo4/41 Cr4, tempered to 310 to 370 HB Wheel bolts: property clas
34、s 10.9 as specified in DIN EN ISO 898-1 4.2.2 Designs Product grade B as specified in DIN EN ISO 4759-1 Surface quality as defined in DIN EN ISO 6157-2 4.2.3 Surface Znph r 5 f as specified in DIN EN 12476 Zinc flake coating plus lubricating wax Other surface finishes are permitted subject to agreem
35、ent with the user. 4.2.4 Marking The property class of nut bodies of wheel nuts with thrust plate N and of wheel nuts with short or long guide shafts, K or L, shall be marked using the clock-face type code system as specified in DIN EN ISO 898-6 and the manufacturers mark; other marks are also permi
36、tted. Thrust plates of: wheel nuts with thrust plates N: to be marked with at least one web and manufacturers mark; other marks are also permitted. Wheel nuts with guide shafts K and L: three rings with two cross-bars on right-hand and left-hand side; other marks are also permitted. DIN 74361-3:2011-07 13 Bibliography DIN ISO 10579, Technical drawings Dimensioning and tolerancing; non-rigid parts DIN EN ISO 10683, Fasteners Non-electrolytically applied zinc flake coatings
