Histórico técnico e equivalentes internacionais de DIN EN ISO 8748

Normas equivalentes: ISO 8738 NF EN ISO 8748 BS EN ISO 8748

Esta norma (DIN EN ISO 8748) especifica as características de pinos rectos do tipo mola helicoidal para serviço pesado, feitos de aço ou de aço inoxidável martensítico ou austenítico, para serviço pesado, com diâmetro nominal de 1,5 a 20 mm inclusive.

Desenho dimensional e diagramas técnicos

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Principais dimensões e parâmetros técnicos

Dimensions in mm - source DIN EN ISO 8748

Publication date 07/2007 - Supersedes DIN EN ISO 8748: 03/1998

d1 nom

1.5 2 2.5 3 3.5 4 5 6 8 10 12 14 16 20
d1 min/max before mounting

1.61

1.71

2.11

2.21

2.62

2.73

3.12

3.25

3.64

3.79

4.15

4.3

5.15

5.35

6.18

6.4

8.25

8.55

10.3

10.65

12.35

12.75

14.4

14.85

16.4

16.9

20.4

21

d max before mounting 1.4 1.9 2.4 2.9 3.4 3.9 4.85 5.85 7.8 9.75 11.7 13.6 15.6 19.6
a ≈ 0.5 0.7 0.7 0.9 1 1.1 1.3 1.5 2 2.5 3 3.5 4 4.5
s 0.17 0.22 0.28 0.33 0.39 0.45 0.56 0.67 0.9 1.1 1.3 1.6 1.8 2.2
Minimum double sear, kN a 1.9 3.5 5.5 7.6 10 13.5 20 30 53 84 120 165 210 340
Minimum double sear, kN

b

1.45 2.5 3.8 5.7 7.6 10 15.5 23 41 64 91 - - -

a) applies to steel and martensitic stainless steel products

b) applies to austenitic stainless steel products

DIN EN ISO 8748 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial lengths

nominal size
2
2.5
3
3.5
4
5
6
8
10
12
14
16
20
nominal length l
4 0.08
5 0.09 0.14
6 0.11 0.17 0.25 0.34
8 0.15 0.23 0.33 0.45 0.59
10 0.19 0.29 0.41 0.57 0.74 1.14
12 0.23 0.34 0.5 0.68 0.89 1.37 1.63
14 0.27 0.4 0.58 0.79 1.04 1.6 1.96
16 0.30 0.46 0.66 0.91 1.19 1.83 2.61 4.75
18 0.34 0.51 0.75 1.02 1.34 2.06 2.93 5.34
20 0.38 0.57 0.83 1.13 1.48 2.29 3.26 5.93 9.3
22 0.42 0.63 0.91 1.25 1.63 2.51 3.59 6.53 10.3
24 0.46 0.69 0.99 1.36 1.78 2.74 3.91 7.12 11.2 16
26 0.49 0.74 1.08 1.47 1.93 2.97 4.24 7.71 12.1 17.4
28 0.53 0.8 1.16 1.59 2.08 3.2 4.57 8.31 13.1 18.7 25.4
30 0.57 0.86 1.24 1.7 2.23 3.43 4.89 8.9 14 20 27.2
32 0.61 0.91 1.33 1.81 2.37 3.66 5.22 9.5 14.9 21.4 29 36.8
35 0.66 1 1.45 1.98 2.6 4 5.71 10.39 16.3 23.4 31.7 10.3
40 0.76 1.14 1.66 2.27 2.97 4.57 6.52 11.87 18.7 26.7 36.2 46
45 1.29 1.87 2.25 3.34 5.14 7.34 13.35 21 30.1 40.8 51.8 83.4
50 2.07 2.83 3.71 5.71 8.15 14.84 23.3 33.4 45.3 57.6 92.7
55 4.08 6.29 8.97 16.32 25.6 36.8 49.8 63.3 102
60 4.45 6.86 9.78 17.8 28 40.1 54.4 69.1 111.2
65 10.6 19.29 30.3 43.4 58.9 74.8 120.5
70 11.41 20.77 32.6 46.8 63.4 80.6 129.8
75 12.23 22.25 35 50.1 68 86.3 139.1
80 23.74 37.3 53.5 72.5 92.1 148.3
85 25.22 39.6 56.8 77 97.8 157.6
90 26.71 42 60.1 81.6 103.6 166.9
95 28.19 44.3 63.5 86.1 109.3 176.1
100 29.67 46.6 66.8 90.6 115.1 185.4
120 35.61 56 80.2 108.7 138.1 222.5
140 93.5 126.9 161.1 259.6
160 106.9 145 184.2 296.6
180 163.1 207.2 333.7
200 181.2 230.2 370.8