Stainless and Corrosion-resistant Disc Springs / 631 / 17-7PH Stainless Steel
SOLON model reference: SDS 40x18.3x2.5-177 · SOLON-BELLEVILLE-CATALOG · locator 42
Dimensions, standards and downloadable engineering files are generated from published product data.
Open full drawing previewSpecial surface parameters must be reviewed against the released drawing; the profile name alone is not a complete geometry definition.
A missing FEM record is not evidence of failed validation. It means no approved product-level study is public on this page.
Parallel stacks primarily multiply load; series stacks primarily multiply travel. Friction, contact, guidance, preload and manufacturing scatter must be checked separately.
Each material and supplied-surface identity has its own database-driven workbook and PNG preview. A review or blocked status is not a production release.
PLAIN
CONTINUOUS_DIE_FORM+PH_STAINLESS+NO_SUPPORT_FACE+STRONG_PRESS+PLAIN
Blocked — not for production
Download Excel · 20.9 kBLoads, stresses, thousand-piece weights and curves retain their manufacturer, source version, page/worksheet, material and temperature condition. A catalog value is an engineering reference unless the inspection dossier separately identifies an approved acceptance tolerance.
| Point | s/h0 | s (mm) | F (N) | σ1 / σII (MPa) | σ2 / σIII (MPa) | σ3 (MPa) | σOM (MPa) |
|---|---|---|---|---|---|---|---|
| catalog listed operating point | 1.016 | 0.8640 | 11,276 | — | — | — | — |
2
Table 2 · EN 16983 pages 6～7（PDF 8～9）EN 10083 / EN 10089 / EN 10132-4 MPa
5 · EN 16983 page 7（PDF 9）冲压/精冲、冷成形、内外径加工、边缘倒圆
Table 7 · EN 16983 page 11（PDF 13）deviation -0.12 / +0.04 mm；product limits 2.38–2.54 mm
Table 8 · EN 16983 page 13（PDF 15）deviation -0.25 / 0 mm；product limits 39.75–40 mm；h12
8.1 / ISO 286-2 · EN 16983 page 12（PDF 14）deviation 0 / +0.21 mm；product limits 18.3–18.51 mm；H12
8.1 / ISO 286-2 · EN 16983 page 12（PDF 14）deviation -0.1 / +0.2 mm；product limits 3.25–3.55 mm
Table 9 · EN 16983 page 13（PDF 15）deviation -7.5 / +15 %；test position 0.75 h0
Table 10 · EN 16983 pages 13～14（PDF 15～16）0.32 mm；2 × IT11
8.1 / ISO 286-2 · EN 16983 page 12（PDF 14）42–52 HRC
7.2 · EN 16983 page 11（PDF 13）0.3 mm；recommended guide pin diameter 18 mm
Table 12 · EN 16983 page 15（PDF 17）0.6 mm；recommended guide sleeve bore 40.6 mm
Table 12 · EN 16983 page 15（PDF 17）See requirement data
12 · EN 16983 section 12, page 21（PDF 23）2 × test load；压至平位后复核自由高度与检测负荷
7.4 / 8.4.2 · EN 16983 pages 12, 14（PDF 14, 16）无影响性能的斑疤、裂纹、锈蚀；边缘倒圆或去毛刺
7.5 · EN 16983 page 12（PDF 14）phosphated and oiled
7.5 · EN 16983 page 12（PDF 14）recommended for dynamic duty where fatigue-life improvement is required；process agreement required
10.2.2 · EN 16983 page 20（PDF 22）product maximum depth 0.075 mm
7.2 · EN 16983 page 11（PDF 13）See requirement data
10.1 · EN 16983 page 17（PDF 19）0.15–0.2 h0；product limits 0.1275–0.17 mm
10.2.1 · EN 16983 page 18（PDF 20）Consult the manufacturer above 100 °C for material, stress and relaxation requirements
9 / Figures 3–4 · EN 16983 page 17（PDF 19）test position 0.75 h0；硬化、磨削并抛光的压盘；使用适合润滑剂
8.4.1 · EN 16983 page 13（PDF 15）按标准约定的量具、压盘及测量条件执行
8 · EN 16983 pages 13～14（PDF 15～16）See requirement data
11.3 · EN 16983 page 21（PDF 23）Acceptance inspection according to EN ISO 3269 where applicable
2 · EN 16983 pages 11～18（PDF 13～20）Contract and product documentation requirements apply
contract · EN 16983 pages 11～18（PDF 13～20）t产品 / 6 ≤ R ≤ t产品 / 5；product limits 0.416667–0.5 mm；product recommendation 0.416667 mm；Use actual product thickness: t for plain T products and t-prime for reduced TP products. CAD defaults to the lower bound while drawings expose the full recommended range.
Disc Spring Contact Surfaces · Machinery's Handbook 31st, p.390（厂商经验转述）0.2–0.75 h0；product limits 0.17–0.6375 mm
聚辉推荐 DS-G01 · Mubea 2023 manual PDF 27；SPIROL deflection-range white paper1–4
3.10 Spring stack design · Mubea Disc Springs Manual 2023, PDF 24See requirement data
10.2.2 · DIN EN 16983 page 18（PDF 20）按温度、介质和寿命选择油、脂、含二硫化钼膏或固体润滑；不得把未润滑摩擦忽略
guidance / lubrication / friction · Mubea 2023 manual PDF 25, 28～31；Christian Bauer theory PDF 17优先内导柱；空间或结构要求时使用外导套；低迟滞需求评估自定心结构
C.1 / 3.10 · GB/T 1972.2 附录 C；Mubea 2023 manual PDF 24～25De/Di=2.185792，De/t=16，within simplified-geometry range
3.9 Special cases · Mubea Disc Springs Manual 2023, PDF 21| Characteristic | Requirement / limits | Status | Source |
|---|---|---|---|
| Outside diameterD / De | 40 mm (-0.25/+0 mm); limits 39.75–40 mmThe stainless/corrosion-resistant product keeps its material and vendor identity. Dimensional tolerances, coaxiality and guide clearances use the DIN EN 16983 general range rules; hardness is resolved separately from the material condition and vendor/order source. | Resolved | DIN EN 16983:2017-09EN 16983 page 12（PDF 14） |
| Inside diameterd / Di | 18.3 mm (+0/+0.21 mm); limits 18.3–18.51 mmThe stainless/corrosion-resistant product keeps its material and vendor identity. Dimensional tolerances, coaxiality and guide clearances use the DIN EN 16983 general range rules; hardness is resolved separately from the material condition and vendor/order source. | Resolved | DIN EN 16983:2017-09EN 16983 page 12（PDF 14） |
| Product thicknesst / t′ | 2.5 mm (-0.12/+0.04 mm); limits 2.38–2.54 mmThe stainless/corrosion-resistant product keeps its material and vendor identity. Dimensional tolerances, coaxiality and guide clearances use the DIN EN 16983 general range rules; hardness is resolved separately from the material condition and vendor/order source. | Resolved | DIN EN 16983:2017-09EN 16983 page 13（PDF 15） |
| Free heightH0 / l₀ | 3.35 mm (-0.1/+0.2 mm); limits 3.25–3.55 mmThe stainless/corrosion-resistant product keeps its material and vendor identity. Dimensional tolerances, coaxiality and guide clearances use the DIN EN 16983 general range rules; hardness is resolved separately from the material condition and vendor/order source. | Resolved | DIN EN 16983:2017-09EN 16983 page 13（PDF 15） |
| Cone heighth0 / h₀ | 0.85 mm (-0.14/+0.32 mm); limits 0.71–1.17 mmWorst-case envelope derived from free-height and plain product thickness t tolerances; it is a reference, not an independent standard h0 acceptance tolerance. | Derived reference | DIN-EN-16983-2017-09EN 16983 page 13（PDF 15）; EN 16983 page 13（PDF 15） |
| Coaxiality— | ≤ 0.32 mmThe stainless/corrosion-resistant product keeps its material and vendor identity. Dimensional tolerances, coaxiality and guide clearances use the DIN EN 16983 general range rules; hardness is resolved separately from the material condition and vendor/order source. | Resolved | DIN EN 16983:2017-09EN 16983 page 12（PDF 14） |
| Flatness— | Set by approved drawing, process card or supply agreementThe standard does not provide a universal independent numeric tolerance; an approved drawing, process card or supply agreement must provide the acceptance value. | Agreement required | POLYSPLENDID-INSPECTION-POLICY-2026-08Task 121 标准原文核对结论 |
| Parallelism— | Set by approved drawing, process card or supply agreementThe standard does not provide a universal independent numeric tolerance; an approved drawing, process card or supply agreement must provide the acceptance value. | Agreement required | POLYSPLENDID-INSPECTION-POLICY-2026-08Task 121 标准原文核对结论 |
| Test loadFt | 8296.461127 N (-7.5/+15%); limits 7674.226542–9540.930296 NThe nominal test load comes from the current published standard, manufacturer, or engineering dataset; limits use the applicable DIN EN 16983 percentage tolerance. | Resolved | DIN EN 16983:2017-09rounded_almen_laszlo_calculation |
| Hardness— | material_condition_requiredFinished hardness for material 1.4568 shall be tied to its cold-work, ageing, or quench-and-temper condition and to a vendor/order source. The ordinary 50CrV4/51CrV4 range of 42–52 HRC is not reused. Structured vendor-condition values are stored as contextual inspection requirements. | material_condition_required | DIN EN 16983:2017-09— |
| Hardness— | 49 HRC; limits 49–49 HRCSolon CH900 condition. | Resolved | SOLON-CATALOG-2017p. 6, 17-7PH CH900, RC 49 |
| Hardness— | 46–49 HRCSolon RH950 condition. | Resolved | SOLON-CATALOG-2017p. 6, 17-7PH RH950, RC 46-49 |
| Hardness— | 38–43 HRCSolon standard proprietary condition. | Resolved | SOLON-CATALOG-2017p. 6, 17-7PH standard proprietary condition, RC 38-43 |
| Hardness— | 38–44 HRCSolon TH1050 condition. | Resolved | SOLON-CATALOG-2017p. 6, 17-7PH TH1050, RC 38-44 |
| Hardness— | 37–42 HRCSolon TH1075 condition. | Resolved | SOLON-CATALOG-2017p. 6, 17-7PH TH1075, RC 37-42 |
Where cone-height limits are shown, they are derived references only. Flatness and parallelism become acceptance criteria only after an approved drawing, process card or supply agreement supplies numeric values.
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