Belleville Washer
Belleville Washer
Belleville Washer is known as Conical Spring Washers, Heavy Duty Safety Washers and Belleville Spring washers. These washers are manufactured as per DIN 6796. Conical springs washers are used, to counteract the loss of force in bolted or screw connections due to stress relaxation taking place in the components or to counteract heat expansion.
Belleville Washers size range is as follows:
Heavy Duty Belleville washers according to DIN 6796 Dimension:
| Size | Bolt Size (mm) | Bolt Size (inch) | D1 | D2 | S | H max | H min | Approx Force to Flat (N) |
|---|---|---|---|---|---|---|---|---|
| M2 | 2.00 | 2.20 | 5.00 | 0.40 | 0.60 | 0.50 | 628 | |
| M2.50 | 2.50 | 2.70 | 6.00 | 0.50 | 0.72 | 0.61 | 946 | |
| M3 | 3.00 | 1/8 | 3.20 | 7.00 | 0.60 | 0.85 | 0.72 | 1320 |
| M3.50 | 3.50 | 3.70 | 8.00 | 0.80 | 1.06 | 0.92 | 2410 | |
| M4 | 4.00 | 5/32 | 4.30 | 9.00 | 1.00 | 1.30 | 1.12 | 3770 |
| M5 | 5.00 | 3/16 | 5.30 | 11.00 | 1.20 | 1.55 | 1.35 | 5480 |
| M6 | 6.00 | 1/4 | 6.40 | 14.00 | 1.50 | 2.00 | 1.70 | 8590 |
| M7 | 7.00 | 7.40 | 17.00 | 1.75 | 2.30 | 2.00 | 11300 | |
| M8 | 8.00 | 5/16 | 8.40 | 18.00 | 2.00 | 2.60 | 2.24 | 14900 |
| M10 | 10.00 | 3/8 | 10.50 | 23.00 | 2.50 | 3.20 | 2.80 | 22100 |
| M12 | 12.00 | 1/2 | 13.00 | 29.00 | 3.00 | 3.95 | 3.43 | 34100 |
| M14 | 14.00 | 15.00 | 35.00 | 3.50 | 4.65 | 4.04 | 46000 | |
| M16 | 16.00 | 5/8 | 17.00 | 39.00 | 4.00 | 5.25 | 4.58 | 59700 |
| M18 | 18.00 | 19.00 | 42.00 | 4.50 | 5.80 | 5.08 | 74400 | |
| M20 | 20.00 | 3/4 | 21.00 | 45.00 | 5.00 | 6.40 | 5.60 | 93200 |
| M22 | 22.00 | 7/8 | 23.00 | 49.00 | 5.50 | 7.05 | 6.15 | 113700 |
| M24 | 24.00 | 25.00 | 56.00 | 6.00 | 7.75 | 6.77 | 131000 | |
| M27 | 27.00 | 28.00 | 60.00 | 6.50 | 8.35 | 7.30 | 154000 | |
| M30 | 30.00 | 11/8 | 31.00 | 70.00 | 7.00 | 9.20 | 8.00 | 172000 |
Material : Spring Steel 50CrV4, Stainless Steel 304, Stainless Steel 316
Plating : Natural / Phosphated / Zink Flake
