Spine elastiche a spirale - Serie media

La norma (DIN EN ISO 8750) specifica le caratteristiche delle spine elastiche a spirale serie normale in acciaio o acciaio inossidabile martensitico ed austenitico nei diametri da 0.8 a 20 mm compresi.

Disegni dimensionali e diagrammi tecnici

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Dimensioni chiave e parametri tecnici

Dimensions in mm - source DIN EN ISO 8750

Publication date: 07/2007 supersedes edition 03/1998

d1 nom d2 max (before mounting) a ≈ s Minimum shear strength, double kN (steel and martensitic ss only) Minimum shear strength, double kN (austenitic ss steel only)
0.8 0.75 0.3 0.07 0.4 0.3
1 0.95 0.3 0.08 0.6 0.45
1.2 1.15 0.4 0.1 0.9 0.65
1.5 1.4 0.5 0.13 1.45 1.05
2 1.9 0.7 0.17 2.5 1.9
2.5 2.4 0.7 0.21 3.9 2.9
3 2.9 0.9 0.25 5.5 4.2
3.5 3.35 1 0.29 7.5 5.7
4 3.9 1.1 0.33 9.6 7.6
5 4.85 1.3 0.42 15 11.5
6 5.85 1.5 0.5 22 16.8
8 7.8 2 0.67 39 30
10 9.75 2.5 0.84 62 48
12 11.7 3 1 89 67
14 13.6 3.5 1.2 120 -
16 15.6 4 1.3 155 -
20 19.6 4.5 1.7 250 -

DIN 8750 - commercial lengths

nominal size
0.8 1 1.2 1.5
2
2.5
3
3.5
4
5
6
8
10
12
14
16
20
nominal length l
4 X X X X X
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14 X X X X X X X X X X X
16 X X X X X X X X X X X X
18 X X X X X X X X X
20 X X X X X X X X X X
22 X X X X X X X X X X
24 X X X X X X X X X X X
26 X X X X X X X X X X
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40 X X X X X X X X X X X X
45 X X X X X X X X X X X X
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60 X X X X X X X X X
65 X X X X X X X
70 X X X X X X X
75 X X X X X X X
80 X X X X X X
85 X X X X X X
90 X X X X X X
95 X X X X X X
100 X X X X X X
120 X X X X X X
140 X X X X
160 X X X X
180 X X X
200 X X X