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DIN 128A Curved Spring Washers

DIN 128A Curved Spring Washers

DIN 128A Curved Spring Washers Dimensions

Nominal Size d1 d2 b s h r
≈		 Weight (7.85 kg/dm³)
kg per 1000 units
≈		 For Nominal Thread Diameter
min. max. max. Nominal Dim. Limit Dev. Nominal Dim. Limit Dev. min. max.
21) 2.1 2.4 4.4 0.9 ± 0.1 0.5 ± 0.1 0.7 0.9 0.1 0.035 2
2.51) 2.6 2.9 5.1 1 ± 0.1 0.6 ± 0.1 0.9 1.1 0.1 0.055 2.5
31) 3.1 3.4 6.2 1.3 ± 0.1 0.7 ± 0.1 1.1 1.3 0.1 0.09 3
3.51) 3.6 3.9 6.7 1.3 ± 0.1 0.7 ± 0.1 1.1 1.3 0.1 0.1 3.5
4 4.1 4.4 7.6 1.5 ± 0.1 0.8 ± 0.1 1.2 1.4 0.2 0.15 4
5 5.1 5.4 9.2 1.8 ± 0.1 1 ± 0.1 1.5 1.7 0.2 0.3 5
6 6.1 6.5 11.8 2.5 ± 0.15 1.3 ± 0.1 2 2.2 0.3 0.7 6
71) 7.1 7.5 12.8 2.5 ± 0.15 1.3 ± 0.1 2 2.2 0.3 0.75 7
8 8.1 8.5 14.8 3 ± 0.15 1.6 ± 0.1 2.45 2.75 0.5 1.3 8
10 10.2 10.7 18.1 3.5 ± 0.2 1.8 ± 0.1 2.85 3.15 0.5 2.1 10
12 12.2 12.7 21.1 4 ± 0.2 2.1 ± 0.15 3.35 3.65 1 3.2 12
14 14.2 14.7 24.1 4.5 ± 0.2 2.4 ± 0.15 3.9 4.3 1 4.8 14
16 16.2 17 27.4 5 ± 0.2 2.8 ± 0.15 4.5 5.1 1 7 16
18 18.2 19 29.4 5 ± 0.2 2.8 ± 0.15 4.5 5.1 1 7.8 18
20 20.2 21.2 33.6 6 ± 0.2 3.2 ± 0.2 5.1 5.9 1 12.2 20
22 22.5 23.5 35.9 6 ± 0.2 3.2 ± 0.2 5.1 5.9 1 13.3 22
24 24.5 25.5 40 7 ± 0.25 4 ± 0.2 6.5 7.5 1.6 21.5 24
27 27.5 28.5 43 7 ± 0.25 4 ± 0.2 6.5 7.5 1.6 23.7 27
30 30.5 31.7 48.2 8 ± 0.25 6 ± 0.2 9.5 10.5 1.6 42.5 30
36 36.5 37.7 58.2 10 ± 0.25 6 ± 0.2 10.3 11.3 1.6 68 36
  • 1) For these nominal sizes, test values for spring force testing according to DIN 267-26 have not yet been established.