1、April 2013 Translation by DIN-Sprachendienst.English price group 11No 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、21.060.60!%(“2052757www.din.deDDIN 984Retaining rings with lugs (internal circlips) for use in bores,English translation of DIN 984:2013-04Sicherungsringe mit Lappen (Halteringe) fr Bohrungen,Englische bersetzung von DIN 984:2013-04Circlips intrieurs ailerons (anneaux de retenue) pour alsages,Traduc
3、tion anglaise de DIN 984:2013-04SupersedesDIN 984:1981-09www.beuth.deDocument comprises 18 pagesIn case of doubt, the German-language original shall be considered authoritative.09.13 DIN 984:2013-04 2 A comma is used as the decimal marker. Contents Page Foreword 3 1 Scope 4 2 Normative references 4
4、3 Symbols 5 4 Dimensions and design details 6 5 Material 10 6 Finish . 10 7 Testing . 11 7.1 Testing the material 11 7.2 Bend and fracture test 11 7.3 Testing the deformation . 11 7.3.1 Testing the conical deformation . 11 7.3.2 Testing the spiral flatness . 12 7.4 Testing the function (permanent se
5、t and grip test) . 13 7.5 Acceptance inspection . 13 8 Load bearing capacity 13 8.1 General . 13 8.2 Load bearing capacity of groove FN. 14 8.3 Load bearing capacity of retaining ring FR14 9 Design of the groove 15 9.1 Groove diameter d2. 15 9.2 Groove width m . 15 9.3 Design of the groove base . 17
6、 10 Assembly of retaining ring 17 11 Designation . 18 DIN 984:2013-04 3 Foreword This standard has been prepared by Working Committee NA 067-00-09 AA Verbindungselemente ohne Gewinde of the Normenausschuss Mechanische Verbindungselemente (FMV) (Fasteners Standards Committee). The DIN 4000-162-5 tabu
7、lar layout of product properties shall apply to retaining rings covered by this standard. Attention is drawn to the possibility 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. Amendments
8、This standard differs from DIN 984:1981-09 as follows: a) normative references have been updated; b) use of other materials subject to agreement is no longer permitted; c) Clause “Concealed installation” has been deleted; d) Figure 10 “Design of groove base” has been included in 9.3; e) designation
9、examples regarding protection against corrosion have been added to the new Clause 11; f) the figures have been editorially revised; g) the specifications for load bearing capacity and assembly have been revised; h) the standard has been editorially revised. Previous editions DIN 471 and 472 Suppleme
10、nt 1: 1945-01, 1954x-03 DIN 984: 1965-03, 1981-09 DIN 995: 1970-01 DIN 984:2013-04 4 1 Scope This standard applies to retaining rings with lugs for use in bores. Retaining rings are suitable for retaining machine components which have non-square (radiused or chamfered) edges. They have an eccentric
11、form and have a number of lugs of equal depth uniformly distributed around the circumference. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited appli
12、es. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 988, Shim rings and supporting rings DIN 4000-162, Tabular layout of product properties Part 162: Washers and rings DIN 5256, Pliers for retaining rings for bores DIN 50938, Black oxide
13、coatings on iron or steel Requirements and test methods DIN EN 10132-4, Cold-rolled narrow steel strip for heat-treatment Technical delivery conditions Part 4: Spring steels and other applications DIN EN 12476, Phosphate conversion coatings of metals Method of specifying requirements DIN EN ISO 3269
14、, Fasteners Acceptance inspection DIN EN ISO 4042, Fasteners Electroplated coatings DIN EN ISO 6507-1, Metallic materials Vickers hardness test Part 1: Test method DIN EN ISO 6508-1, Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) DIN EN ISO 922
15、7, Corrosion tests in artificial atmospheres Salt spray tests DIN EN ISO 18265, Metallic materials Conversion of hardness values DIN ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection DIN 984:2013-
16、04 5 3 Symbols radial width of the lug b radial width of retaining ring opposite the aperture c distance between measuring plates for testing spiral flatness d1bore diameter d2groove diameter d3external diameter of retaining ring in unstressed state d4minimum centre line diameter of bore during asse
17、mbly d5diameter of the assembly holes E modulus of elasticity FNload bearing capacity of groove at a yield point of the grooved material of 200 MPa(see 8.2) FRload bearing capacity of retaining ring with sharp-edged abutment of a machine component (see 8.3) FRgload bearing capacity of retaining ring
18、 for abutment with edge distance (see 8.3) g edge distance of the machine component abutting the retaining ring h distance between plates when testing conical deformation m groove width n edge margin ReLyield point r curvature in the groove base or test jaws s thickness of retaining ring t groove de
19、pth with nominal sizes of d1and d2gDIN 984:2013-04 6 4 Dimensions and design details The retaining rings do not need to conform to Figure 1, only the dimensions specified need to be complied with. The tolerances specified relate to retaining rings in their uncoated condition. a) Unstressed b) Compre
20、ssed for the purpose of assembly Figure 1 Dimensions of retaining ring (notation) Figure 2 Installation of a retaining ring (Example) (notation) Values for peak-to-valley height for groove base and loaded edge shall be specified on a case-by-case basis. The design of the groove base shall be as spec
21、ified in 9.3. DIN 984:2013-04 7 Table 1 Normal type Dimensions in millimetres Bore diameter Ring Groove Supplementary datadd1s d3bad5Mass per 1 000 units in kg d2bmct n d4 FNFRg FRgNominal size of pliers as in DIN 5256 Nominal size Perm. dev. Perm. dev. max. min. Perm. dev. H13 min. kN kN kN 16 1,00
22、 0 0,06 17,3 +0,36 0,10 3,4 2,0 1,7 0,72 16,8 +0,11 0 1,10 0,40 1,2 8,8 3,40 5,50 1,0 2,60 8 17 1,00 18,3 +0,42 0,13 3,7 2,1 1,7 0,80 17,8 1,10 0,40 1,2 9,2 3,60 6,00 1,0 2,50 18 1,00 19,5 3,8 2,2 1,7 0,90 19,0 +0,13 0 1,10 0,50 1,5 10,0 4,80 6,50 1,0 2,60 19 1,00 20,5 3,8 2,2 2,0 0,99 20,0 1,10 0,5
23、0 1,5 11,0 5,10 6,80 1,0 2,50 19 20 1,00 21,5 3,9 2,3 2,0 1,06 21,0 1,10 0,50 1,5 11,8 5,40 7,20 1,0 2,50 22 1,00 23,5 4,0 2,5 2,0 1,28 23,0 1,10 0,50 1,5 13,6 5,90 8,00 1,0 2,70 23 1,20 24,6 +0,42 0,21 4,1 2,6 2,0 1,48 24,1 1,30 0,55 1,7 14,4 6,80 13,80 1,0 4,50 24 1,20 25,9 4,2 2,6 2,0 1,60 25,2 +
24、0,21 0 1,30 0,60 1,8 15,2 7,70 13,90 1,0 4,60 25 1,20 26,9 4,4 2,7 2,0 1,72 26,2 1,30 0,60 1,8 15,7 8,00 14,60 1,0 4,70 26 1,20 28,5 4,4 2,8 2,0 2,00 27,2 1,30 0,60 1,8 16,7 8,40 13,85 1,0 4,60 27 1,20 29,1 +0,5 0,25 4,5 2,9 2,0 2,00 28,4 1,30 0,70 2,1 17,5 10,10 13,30 1,0 4,50 28 1,20 30,1 4,9 2,9
25、2,0 2,10 29,4 +0,25 0 1,30 0,70 2,1 17,7 10,50 13,30 1,0 4,50 30 1,20 32,1 4,9 3,0 2,0 2,35 31,4 1,30 0,70 2,1 19,7 11,30 13,70 1,0 4,60 32 1,20 34,4 5,1 3,2 2,5 2,50 33,7 1,30 0,85 2,6 21,3 14,60 13,80 1,0 4,70 35 1,50 37,8 5,5 3,4 2,5 4,00 37,0 1,60 1,00 3,0 23,4 18,80 26,90 1,5 6,40 For a, b, can
26、d dsee page 9. DIN 984:2013-04 8 Table 1 (continued) Bore diameter Ring Groove Supplementary datadd1s d3 bad5Mass per 1 000 units in kg d2bmct n d4 FNFRg FRgNominal size of pliers as in DIN 5256 Nominal size Perm. dev. Perm. dev. max. min. Perm. dev. H13 min. kN kN kN 36 1,50 0 0,06 38,8 +0,5 0,25 5
27、,6 3,5 2,5 4,15 38,0 +0,25 0 1,60 1,00 3,0 24,2 19,40 26,40 1,5 6,40 19 38 1,50 40,8 6,1 3,7 2,5 4,40 40,0 1,60 1,00 3,0 25,2 22,50 28,20 1,5 6,70 40 1,75 43,5 +0,9 0,39 7,2 3,9 2,5 5,30 42,5 1,85 1,25 3,8 24,9 27,00 44,60 2,0 8,30 40 42 1,75 45,5 7,2 4,1 2,5 6,00 44,5 1,85 1,25 3,8 26,9 28,40 44,70
28、 2,0 8,40 44 1,75 47,5 7,2 4,2 2,5 6,45 46,5 1,85 1,25 3,8 28,9 29,50 43,30 2,0 8,30 45 1,75 48,5 7,2 4,3 2,5 6,60 47,5 1,85 1,25 3,8 29,9 30,20 43,10 2,0 8,20 47 1,75 50,5 +1,1 0,46 7,2 4,4 2,5 6,90 49,5 1,85 1,25 3,8 31,9 31,40 43,50 2,0 8,30 48 1,75 51,5 7,2 4,5 2,5 7,50 50,5 +0,30 0 1,85 1,25 3,
29、8 32,9 32,00 43,20 2,0 8,40 50 2,00 0 0,07 54,2 8,2 4,6 2,5 8,50 53,0 2,15 1,50 4,5 32,8 40,50 60,80 2,0 12,10 52 2,00 56,2 8,2 4,7 2,5 9,40 55,0 2,14 1,50 4,5 34,8 42,00 60,25 2,0 12,00 55 2,00 59,2 8,2 5,0 2,5 9,75 58,0 2,15 1,50 4,5 37,8 44,40 60,30 2,0 12,50 57 2,00 61,2 8,2 5,1 2,5 11,60 60,0 2
30、,15 1,50 4,5 39,8 46,00 60,80 2,0 12,70 58 2,00 62,2 8,2 5,2 2,5 12,00 61,0 2,15 1,50 4,5 40,8 46,70 60,80 2,0 12,70 60 2,00 64,2 8,2 5,4 2,5 12,70 63,0 2,15 1,50 4,5 42,8 48,30 61,00 2,0 13,00 62 2,00 66,2 8,2 5,5 2,5 12,80 65,0 2,15 1,50 4,5 44,8 49,80 60,90 2,0 13,00 65 2,50 69,2 9,5 5,8 3,0 16,7
31、0 68,0 2,65 1,50 4,5 43,6 51,80 121,00 2,5 20,80 67 2,50 71,5 10,2 6,0 3,0 18,60 70,0 2,65 1,50 4,5 45,5 53,80 121,00 2,5 21,10 For a, b, cand dsee page 9. DIN 984:2013-04 9 Table 1 (continued) Bore diameter Ring Groove Supplementary datadd1s d3 bad5Mass per 1 000 units in kg d2bmct n d4FNFRg FRgNom
32、inal size of pliers as in DIN 5256 Nominal size Perm. dev. Perm. dev. max. min. Perm. dev. H13 min. kN kN kN 70 2,50 0 0,07 74,5 +1,1 0,46 10,2 6,2 3,0 20,2 73,0 +0,30 0 2,65 1,50 4,5 48,5 56,20 119,0 2,5 21,00 40 72 2,50 76,5 10,2 6,4 3,0 21,2 75,0 2,65 1,50 4,5 50,5 58,00 119,2 2,5 21,00 75 2,50 7
33、9,5 10,2 6,6 3,0 22,6 78,0 2,65 1,50 4,6 53,5 60,00 118,0 2,5 21,00 80 2,50 85,5 +1,3 0,54 10,2 7,0 3,0 25,0 83,5 +0,35 0 2,65 1,75 5,3 58,5 74,60 120,9 2,5 21,80 85 3,00 0 0,08 90,5 12,2 7,2 3,5 30,1 88,5 3,15 1,75 5,3 59,4 79,50 201,4 3,0 31,20 85 90 3,00 95,5 12,2 7,6 3,5 35,5 93,5 3,15 1,75 5,3
34、64,4 84,00 199,0 3,0 31,40 95 3,00 100,5 12,2 8,1 3,5 40,0 98,5 3,15 1,75 5,3 69,4 88,60 195,0 3,0 31,40 100 3,00 105,5 12,2 8,4 3,5 43,5 103,5 3,15 1,75 5,3 74,4 93,10 188,0 3,0 30,80 110 4,00 0 0,1 117,0 12,2 9,0 3,5 73,0 114,0 +0,54 0 4,15 2,00 6,0 84,4 117,00 415,0 3,0 71,00 115 4,00 122,0 + 1,5
35、 0,63 12,2 9,3 3,5 82,0 119,0 4,15 2,00 6,0 89,9 122,00 409,0 3,0 71,20 120 4,00 127,0 12,2 9,7 3,5 87,0 124,0 +0,63 0 4,15 2,00 6,0 94,4 127,00 396,0 3,0 70,00 125 4,00 132,0 12,2 10,0 4,0 92,0 129,0 4,15 2,00 6,0 99,4 132,00 385,0 3,0 70,00 125 130 4,00 137,0 12,2 10,2 4,0 102,0 134,0 4,15 2,00 6,
36、0 104,4 138,00 374,0 3,0 69,00 140 4,00 147,0 14,2 10,7 4,0 112,0 144,0 4,15 2,00 6,0 110,0 148,00 350,0 3,0 66,50 150 4,00 158,0 14,2 11,2 4,0 123,0 155,0 4,15 2,50 7,5 120,0 191,00 326,0 3,0 64,00 160 4,00 169,0 14,2 11,6 4,0 133,0 165,0 4,15 2,50 7,5 130,0 212,00 321,0 3,5 54,50 170 4,00 179,5 14
37、,2 12,2 4.0 145,0 175,0 4,15 2,50 7,5 140,0 225,00 349,0 3,5 59,00 aDimension b shall not exceed dimension max. bSee 9.1. cSee 9.2. dThe supplementary data apply only to retaining rings made of spring steel according to DIN EN 10132-4. DIN 984:2013-04 10 5 Material Spring steel C67S or C75S accordin
38、g to DIN EN 10132-4 (at the manufacturers discretion). Table 2 shall apply for hardness: Table 2 Hardness of retaining rings Nominal size of retaining ring d1Hardness d1 48 mm 470 HV to 580 HV or 47 HRC to 54 HRC 48 150 mm 150 7.3.2 Testing the spiral flatness The retaining ring shall fall through t
39、wo parallel, perpendicular plates with a clearance c as given in Table 5 (see Figure 5). Figure 5 Testing the spiral flatness (notation) Table 5 Spiral flatness Nominal size of retaining ring d1c d1 100 mm 1,5 s 100 mm d1 170 mm 1,8 s DIN 984:2013-04 13 7.4 Testing the function (permanent set and gr
40、ip test) The retaining ring shall be passed three times through a taper with a diameter of 0,99 d1as shown in Figure 11 and shall then fit in a bore with a diameter d2equal to the maximum groove diameter, where it shall be held under its own weight. 7.5 Acceptance inspection For acceptance inspectio
41、n, the principles of testing and acceptance specified in DIN EN ISO 3269 shall apply. See Table 6 for characteristics and Table 7 for the acceptance quality level. Table 6 Characteristics Characteristics Thickness of retaining ring External diameter of retaining ring in unstressed state d3Conical de
42、formation Spiral flatness Function (set and grip) Table 7 Acceptable quality level AQL Acceptable quality level AQLaFor testing characteristics For testing for faulty parts 1 1,5 aSee DIN ISO 2859-1. If other sampling plans are to be applied, this shall be agreed at the time of ordering. For hardnes
43、s testing, DIN EN ISO 3269 shall apply. The hardness test of retaining rings shall be regarded as a destructive test. 8 Load bearing capacity 8.1 General Dimensioning a retaining ring assembly requires separate calculations for the load bearing capacity of the groove FNand for the load bearing capac
44、ity of the retaining ring FR. In each case the lower value is decisive. The load bearing capacities listed in Table 1 (FN, FR, FRg) contain no safety factor against yield under static loading or against fatigue fracture under dynamic loading. There is at least twice the level of safety against fract
45、ure under static loading. DIN 984:2013-04 14 8.2 Load bearing capacity of groove FNThe values of FNgiven in Table 1 apply for a yield point of the material in the region of the shaft groove of ReL= 200 MPa as well as for the given nominal groove depths t and edge margins n. The load bearing capacity
46、 FN for deviating groove depths t and yield points ReLshall be calculated using Equation (1). 200eLNNRttFF = (1) 8.3 Load bearing capacity of retaining ring FRThe load bearing capacity of retaining ring FRaccording to Table 1 applies for a sharp-edged abutment of the machine component (see Figure 6)
47、. Key 1 Retaining ring Key 1 Retaining ring Figure 6 Sharp-edged abutment Figure 7 Abutment with edge chamfering distance (chamfering or rounding) (notation) The values of FRgapply to an abutment with an edge chamfering distance g (see Figure 7). The values of FRand FRgapply to ring materials with a
48、 modulus of elasticity of 210 000 MPa. If the existing edge chamfering distance g deviates from the values specified in Tables 1 and 2, then, for conversion, the load bearing capacity of the retaining ring is indirectly proportional to the edge chamfering distance: RgRgggFF = (2) NOTE If F Rgwith sm
49、aller values of g is greater than FR,FRapplies. If the existing forces cannot be accommodated because the edge chamfering distance is too great, then a sharp-edged abutment is to be made by means of a supporting ring complying with DIN 988 (see Figure 8). DIN 984:2013-04 15 Key 1 Retaining ring 2 Supporting ring Figure 8 Sharp-edged abutment at the retaining ring using a supporting ring 9 Design of the groove 9.1 Groove diameter d2The groove diameters d2specified in Table 1
