Disc Springs (Belleville Washers)
90 standard sizes per GB/T 197.2-2023 Annex B — transcribed without alteration.
t = nominal thickness (group 1, without supporting surfaces). For groups 2 and 3 the springs are made with supporting surfaces: t₁ is the reduced thickness after machining, shown in brackets. F₁ is the test load measured at H₁ = H₀ − 0.75 h₀ (s ≈ 0.75 h₀).
D/t ≈ 18 · h₀/t ≈ 0.40 — high load, small deflection. All dimensions in mm; F₁ measured at H₁ = H₀ − 0.75 h₀.
Group 1 · t = 0.20–1.25 mm · without supporting surfaces
| D (mm) | d (mm) | t / t₁ (mm) | h₀ (mm) | H₀ (mm) | F₁ at H₁ (N) |
|---|---|---|---|---|---|
| 8 | 4.2 | 0.4 | 0.2 | 0.6 | 210 |
| 10 | 5.2 | 0.5 | 0.25 | 0.75 | 325 |
| 12.5 | 6.2 | 0.7 | 0.3 | 1.0 | 660 |
| 14 | 7.2 | 0.8 | 0.3 | 1.1 | 797 |
| 16 | 8.2 | 0.9 | 0.35 | 1.25 | 1,013 |
| 18 | 9.2 | 1.0 | 0.4 | 1.4 | 1,254 |
| 20 | 10.2 | 1.1 | 0.45 | 1.55 | 1,521 |
Group 2 · t = 1.25–6.00 mm · with supporting surfaces
| D (mm) | d (mm) | t / t₁ (mm) | h₀ (mm) | H₀ (mm) | F₁ at H₁ (N) |
|---|---|---|---|---|---|
| 22.5 | 11.2 | 1.25 | 0.5 | 1.75 | 1,929 |
| 25 | 12.2 | 1.5 | 0.55 | 2.05 | 2,926 |
| 28 | 14.2 | 1.5 | 0.65 | 2.15 | 2,841 |
| 31.5 | 16.3 | 1.75 | 0.7 | 2.45 | 3,871 |
| 35.5 | 18.3 | 2.0 | 0.8 | 2.8 | 5,187 |
| 40 | 20.4 | 2.25 | 0.9 | 3.15 | 6,500 |
| 45 | 22.4 | 2.5 | 1.0 | 3.5 | 7,716 |
| 50 | 25.4 | 3.0 | 1.1 | 4.1 | 11,976 |
| 56 | 28.5 | 3.0 | 1.3 | 4.3 | 11,388 |
| 63 | 31 | 3.5 | 1.4 | 4.9 | 15,025 |
| 71 | 36 | 4.0 | 1.6 | 5.6 | 20,535 |
| 80 | 41 | 5.0 | 1.7 | 6.7 | 33,559 |
| 90 | 46 | 5.0 | 2.0 | 7.0 | 31,354 |
| 100 | 51 | 6.0 | 2.2 | 8.2 | 48,022 |
| 112 | 57 | 6.0 | 2.5 | 8.5 | 43,707 |
Group 3 · t = 6.00–14.00 mm · with supporting surfaces
| D (mm) | d (mm) | t / t₁ (mm) | h₀ (mm) | H₀ (mm) | F₁ at H₁ (N) |
|---|---|---|---|---|---|
| 125 | 64 | 8 (7.5) | 2.6 | 10.6 | 85,926 |
| 140 | 72 | 8 (7.5) | 3.2 | 11.2 | 85,251 |
| 160 | 82 | 10 (9.4) | 3.5 | 13.5 | 138,331 |
| 180 | 92 | 10 (9.4) | 4.0 | 14.0 | 125,417 |
| 200 | 102 | 12 (11.25) | 4.2 | 16.2 | 183,020 |
| 225 | 112 | 12 (11.25) | 5.0 | 17.0 | 171,016 |
| 250 | 127 | 14 (13.1) | 5.6 | 19.6 | 248,828 |
D/t ≈ 28 · h₀/t ≈ 0.75 — balanced load and travel (most common). All dimensions in mm; F₁ measured at H₁ = H₀ − 0.75 h₀.
Group 1 · t = 0.20–1.25 mm · without supporting surfaces
| D (mm) | d (mm) | t / t₁ (mm) | h₀ (mm) | H₀ (mm) | F₁ at H₁ (N) |
|---|---|---|---|---|---|
| 8 | 4.2 | 0.3 | 0.25 | 0.55 | 118 |
| 10 | 5.2 | 0.4 | 0.3 | 0.7 | 209 |
| 12.5 | 6.2 | 0.5 | 0.35 | 0.85 | 294 |
| 14 | 7.2 | 0.5 | 0.4 | 0.9 | 279 |
| 16 | 8.2 | 0.6 | 0.45 | 1.05 | 410 |
| 18 | 9.2 | 0.7 | 0.5 | 1.2 | 566 |
| 20 | 10.2 | 0.8 | 0.55 | 1.35 | 748 |
| 22.5 | 11.2 | 0.8 | 0.65 | 1.45 | 707 |
| 25 | 12.2 | 0.9 | 0.7 | 1.6 | 862 |
| 28 | 14.2 | 1.0 | 0.8 | 1.8 | 1,107 |
Group 2 · t = 1.25–6.00 mm · with supporting surfaces
| D (mm) | d (mm) | t / t₁ (mm) | h₀ (mm) | H₀ (mm) | F₁ at H₁ (N) |
|---|---|---|---|---|---|
| 31.5 | 16.3 | 1.25 | 0.9 | 2.15 | 1,913 |
| 35.5 | 18.3 | 1.25 | 1.0 | 2.25 | 1,699 |
| 40 | 20.4 | 1.5 | 1.15 | 2.65 | 2,622 |
| 45 | 22.4 | 1.75 | 1.3 | 3.05 | 3,646 |
| 50 | 25.4 | 2.0 | 1.4 | 3.4 | 4,762 |
| 56 | 28.5 | 2.0 | 1.6 | 3.6 | 4,438 |
| 63 | 31 | 2.5 | 1.75 | 4.25 | 7,189 |
| 71 | 36 | 2.5 | 2.0 | 4.5 | 6,725 |
| 80 | 41 | 3.0 | 2.3 | 5.3 | 10,518 |
| 90 | 46 | 3.5 | 2.5 | 6.0 | 14,161 |
| 100 | 51 | 3.5 | 2.8 | 6.3 | 13,070 |
| 112 | 57 | 4.0 | 3.2 | 7.2 | 17,752 |
| 125 | 64 | 5.0 | 3.5 | 8.5 | 29,908 |
| 140 | 72 | 5.0 | 4.0 | 9.0 | 27,920 |
| 160 | 82 | 6.0 | 4.5 | 10.5 | 41,108 |
| 180 | 92 | 6.0 | 5.1 | 11.1 | 37,502 |
Group 3 · t = 6.00–14.00 mm · with supporting surfaces
| D (mm) | d (mm) | t / t₁ (mm) | h₀ (mm) | H₀ (mm) | F₁ at H₁ (N) |
|---|---|---|---|---|---|
| 200 | 102 | 8 (7.5) | 5.6 | 13.6 | 76,378 |
| 225 | 112 | 8 (7.5) | 6.5 | 14.5 | 70,749 |
| 250 | 127 | 10 (9.4) | 7.0 | 17.0 | 119,050 |
D/t ≈ 40 · h₀/t ≈ 1.30 — large deflection, lower load. All dimensions in mm; F₁ measured at H₁ = H₀ − 0.75 h₀.
Group 1 · t = 0.20–1.25 mm · without supporting surfaces
| D (mm) | d (mm) | t / t₁ (mm) | h₀ (mm) | H₀ (mm) | F₁ at H₁ (N) |
|---|---|---|---|---|---|
| 8 | 4.2 | 0.2 | 0.25 | 0.45 | 38 |
| 10 | 5.2 | 0.25 | 0.3 | 0.55 | 58 |
| 12.5 | 6.2 | 0.35 | 0.45 | 0.8 | 151 |
| 14 | 7.2 | 0.35 | 0.45 | 0.8 | 123 |
| 16 | 8.2 | 0.4 | 0.5 | 0.9 | 154 |
| 18 | 9.2 | 0.45 | 0.6 | 1.05 | 214 |
| 20 | 10.2 | 0.5 | 0.65 | 1.15 | 254 |
| 22.5 | 11.2 | 0.6 | 0.8 | 1.4 | 246 |
| 25 | 12.2 | 0.7 | 0.9 | 1.6 | 600 |
| 28 | 14.2 | 0.8 | 1.0 | 1.8 | 801 |
| 31.5 | 16.3 | 0.8 | 1.05 | 1.85 | 687 |
| 35.5 | 18.3 | 0.9 | 1.15 | 2.05 | 832 |
Group 2 · t = 1.25–6.00 mm · with supporting surfaces
| D (mm) | d (mm) | t / t₁ (mm) | h₀ (mm) | H₀ (mm) | F₁ at H₁ (N) |
|---|---|---|---|---|---|
| 40 | 20.4 | 1.0 | 1.3 | 2.3 | 1,017 |
| 45 | 22.4 | 1.25 | 1.6 | 2.85 | 1,891 |
| 50 | 25.4 | 1.25 | 1.6 | 2.85 | 1,550 |
| 56 | 28.5 | 1.5 | 1.95 | 3.45 | 2,662 |
| 63 | 31 | 1.8 | 2.36 | 4.15 | 4,238 |
| 71 | 36 | 2.0 | 2.6 | 4.6 | 5,144 |
| 80 | 41 | 2.25 | 2.95 | 5.2 | 6,613 |
| 90 | 46 | 2.5 | 3.2 | 5.7 | 7,684 |
| 100 | 51 | 2.7 | 3.5 | 6.2 | 8,609 |
| 112 | 57 | 3.0 | 3.9 | 6.9 | 10,489 |
| 125 | 64 | 3.5 | 4.5 | 8.0 | 15,416 |
| 140 | 72 | 3.8 | 4.9 | 8.7 | 17,195 |
| 160 | 82 | 4.3 | 5.6 | 9.9 | 21,843 |
| 180 | 92 | 4.8 | 6.2 | 11.0 | 26,442 |
| 200 | 102 | 5.5 | 7.0 | 12.5 | 36,111 |
Group 3 · t = 6.00–14.00 mm · with supporting surfaces
| D (mm) | d (mm) | t / t₁ (mm) | h₀ (mm) | H₀ (mm) | F₁ at H₁ (N) |
|---|---|---|---|---|---|
| 225 | 112 | 6.5 (6.2) | 7.1 | 13.6 | 44,580 |
| 250 | 127 | 7 (6.7) | 7.8 | 14.8 | 50,465 |
Source standard: GB/T 1972.2-2023 Belleville springs — Part 2: Technical requirements (data transcribed from Annex B). Material steel per GB/T 1222.
Non-standard sizes, thicknesses and materials are manufactured on request — send your drawing or load/deflection target.
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