A type disc spring for heavy load, manufactured by Sanwa Spring

Caution
- The product images are representative only. Specifications may vary by part number, including shape and color.
Product Description
[Features]
· material: SAE1060/SAE1070 or equivalent = applicable model A-8 to A-50
· material: SUP-10 = applicable model A-56 to A-250
· operating temperature: 100°C or less
· minimum operating length ht: H overall length - h total deflection × 75%
·Belleville springs have a much larger stored energy per unit volume than coil springs, and fully possess a large load capacity in a small space and with a small stroke
· The load/deflection characteristic curve, especially the non-linear characteristic, can be effectively selected according to usage conditions
·Generating a large load in the stroke
·The spring characteristics can be changed by increasing or decreasing the number of coils and by combining serial and parallel coils
·If used properly, it can be used efficiently for a wide range of purposes
·Highly effective in shock mitigation, especially in shock absorption efficiency when stacked
·Can withstand long use if used within the allowable stress range
[Applications]
·Useful for various valves, industrial machinery, light electrical appliances, general industrial machinery, machine tools, transportation equipment

unit: mm
| Type | D | d | t | H | h |
|---|---|---|---|---|---|
| A-8 | 8 | 4.2 | 0.4 | 0.6 | 0.2 |
| A-10 | 10 | 5.2 | 0.5 | 0.75 | 0.25 |
| A-12.5 | 12.5 | 6.2 | 0.7 | 1 | 0.3 |
| A-14 | 14 | 7.2 | 0.8 | 1.1 | 0.3 |
| A-16 | 16 | 8.2 | 0.9 | 1.25 | 0.35 |
| A-18 | 18 | 9.2 | 1 | 1.4 | 0.4 |
| A-20 | 20 | 10.2 | 1.2 | 1.6 | 0.4 |
| A-22.5 | 22.5 | 11.2 | 1.2 | 1.7 | 0.5 |
| A-25 | 25 | 12.2 | 1.5 | 2.05 | 0.55 |
| A-28 | 28 | 14.2 | 1.5 | 2.15 | 0.65 |
| A-31.5 | 31.5 | 16.3 | 1.75 | 2.45 | 0.7 |
| A-35.5 | 35.5 | 18.3 | 2 | 2.8 | 0.8 |
| A-40 | 40 | 20.4 | 2.3 | 3.15 | 0.85 |
| A-45 | 45 | 22.4 | 2.5 | 3.5 | 1 |
| A-50 | 50 | 25.4 | 3 | 4.1 | 1.1 |
| A-56 | 56 | 28.5 | 3 | 4.3 | 1.3 |
| A-63 | 63 | 31 | 3.5 | 4.9 | 1.4 |
| A-71 | 71 | 36 | 4 | 5.6 | 1.6 |
| A-80 | 80 | 41 | 5 | 6.7 | 1.7 |
| A-90 | 90 | 46 | 5 | 7 | 2 |
| A-100 | 100 | 51 | 6 | 8.2 | 2.2 |
| A-112 | 112 | 57 | 6 | 8.5 | 2.5 |
| A-125 | 125 | 64 | 8 | 10.6 | 2.6 |
| A-140 | 140 | 72 | 8 | 11.2 | 3.2 |
| A-160 | 160 | 82 | 10 | 13.5 | 3.5 |
| A-180 | 180 | 92 | 10 | 14 | 4 |
| A-200 | 200 | 102 | 12 | 16.2 | 4.2 |
| A-225 | 225 | 112 | 12 | 17 | 5 |
| A-250 | 250 | 127 | 14 | 19.6 | 5.6 |
*Do not use if the mounting length is less than or equal to H overall length - h total deflection x 75%.