BS EN 16983:2016
$142.49
Disc springs. Quality specifications. Dimensions
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 26 |
This standard specifies the set of requirements that ensure the correct functioning of disc spring. These include requirements relating to the materials and manufacturing process, tolerances on dimensions and spring forces, and also the permissible relaxation and fatigue life of such springs as a function of stress. All requirements specified here are minimum requirements. This standard covers three dimensional series of disc springs. NOTE In this standard, disc springs are divided into three groups and three dimensional series. Classification into groups is based on the manufacturing process, which is a function of the material thickness. The assignment of disc springs to dimensional series is governed by the h0 /t ratio.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 5 | European foreword |
| 6 | 1 Scope 2 Normative references 3 Terms, definitions, symbols, units and abbreviated terms 3.1 Terms and definitions |
| 7 | 3.2 Symbols, units and abbreviated terms Table 1 — Symbols, units and abbreviated terms |
| 8 | 4 Dimensions and designation 4.1 General Figure 1 — Single disc spring of group 1, 2 or 3 (sectional view), including the relevant points of loading 4.2 Disc spring groups Table 2 — Disc spring groups |
| 9 | 4.3 Dimensional series Table 3 — Dimensional series 5 Spring material 6 Spring dimensions, nominal sizes, design values 6.1 Dimensional series A Table 4 — Disc springs with ; ; E = 206 000 MPa; µ = 0,3 |
| 10 | 6.2 Dimensional series B Table 5 — Disc springs with ; ; E = 206 000 MPa; µ = 0,3 |
| 11 | 6.3 Dimensional series C Table 6 — Disc springs with ; ; E = 206 000 MPa; µ = 0,3 |
| 12 | 7 Manufacture 7.1 Manufacturing process and surface quality Table 7 — Prescribed manufacturing processes and surface quality |
| 13 | 7.2 Heat treatment 7.3 Shot peening 7.4 Presetting 7.5 Surface treatment and corrosion protection |
| 14 | 8 Tolerances 8.1 Tolerances on diameter 8.2 Tolerances on thickness Table 8 — Tolerances on thickness 8.3 Tolerances on free overall height, l0 Table 9 — Tolerances on free overall height, l0 |
| 15 | 8.4 Tolerances on spring load 8.4.1 Single disc springs Table 10 — Tolerances on spring load 8.4.2 Springs stacked in series Figure 2 — Loading and unloading curves obtained from testing springs stacked in series |
| 16 | Table 11 — Minimum spring load at unloading, as a percentage of the spring load at loading at Lt 8.5 Clearance between disc spring and guiding element Table 12 — Recommended clearance between disc spring and guiding element 9 Creep and relaxation |
| 17 | Figure 3 — Permissible relaxation for disc springs made of carbon steel in accordance with EN 10132-4 |
| 18 | Figure 4 — Permissible relaxation for disc springs made of alloy steel in accordance with EN 10089 and EN 10132-4 10 Permissible stresses 10.1 Static and rarely alternating loading 10.2 Dynamic loading 10.2.1 General |
| 19 | 10.2.2 Permissible loading Figure 5 — Fatigue life of not shot peened disc springs with t < 1,25 mm |
| 20 | Figure 6 — Fatigue life of not shot peened disc springs with 1,25 mm ≤ t ≤ 6 mm Figure 7 — Fatigue life of not shot peened disc springs with 6 mm < t ≤ 14 mm |
| 21 | 11 Testing 11.1 General 11.2 Check of dimensions and other spring characteristics Table 13 — characteristics and quality levels of springs |
| 22 | 11.3 Hardness testing 12 Other relevant requirements |
| 23 | Bibliography |
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BS EN 16984:2016
Disc springs. Calculation Published By Publication Date Number of Pages BSI 2016 20
