
Fornitori di Spring washers, waved and curved
Questo prodotto è regolamentato dalle seguenti norme:
DIN 137 (Equivalent standards: NF E 27620, UNI 8840) UNI 8840 NF E27-620
Dati tecnici
Spring washers, waved and curved


Questo prodotto è regolamentato dalle seguenti norme:
Standard DIN 137
- NF E 27620
- UNI 8840
Spring washers, waved (Type A) and curved (Type B)
Dimensions for d1 and d2 apply to plane (not domed or undulated) spring washers. Surfaces to be smooth and free of rolling defects and bur. Spring washers are supplied raw. Spring characteristics shall not be reduced by surface protections applied. The material for spring washers shall be spring steel, having a C-content of 0,3-0,45%

Dimensions in mm - source DIN 137 A |
||||||||
Date of publication: 1985 - Norm cancelled without replacement | ||||||||
Thread size
|
d min/nom |
d1 nom |
h min | h max |
s nom
|
≈ mass in Kg x 1000 pcs (ρ=7,85 kg/dm3) | ||
M 2
|
2.2
|
4.5
|
0.5
|
1
|
0.3 | 0.028 | ||
M 2.3
|
2.5
|
5
|
0.5
|
1
|
0.3 | 0.035 | ||
M 2.5
|
2.8
|
5.5
|
0.55
|
1.1
|
0.3 | 0.041 | ||
M 3
|
3.2
|
6
|
0.65
|
1.3
|
0.4 | 0.063 | ||
M 3.5
|
3.7
|
7
|
0.7
|
1.4
|
0.4 | 0.088 | ||
M 4
|
4.3
|
8
|
0.8
|
1.6
|
0.5 | 0.14 | ||
M 5
|
5.3
|
10
|
0.9
|
1.8
|
0.5 | 0.222 | ||
M 6
|
6.4
|
11
|
1.1
|
2.2
|
0.5 | 0.247 | ||
M 7
|
7.4
|
12
|
1.2
|
2.4
|
0.5 | 0.361 | ||
M 8
|
8.4
|
15
|
1.7
|
3.4
|
0.5 | 0.476 | ||
M 10
|
10.5
|
18
|
2
|
4
|
0.8 | 1.05 |
Dimensions in mm - source DIN 137 B |
||||||||
Date of publication: 1985 - Norm cancelled without replacement | ||||||||
Thread size |
d min/nom |
d1 nom |
h min | h max | s min | ≈ mass in Kg x 1000 pcs (ρ=7,85 kg/dm3) | ||
M 3
|
3.2
|
8
|
0.8 | 1.6 |
0.5
|
0.166 | ||
M 3.5
|
3.7
|
8
|
0.9 | 1.8 |
0.5
|
0.154 | ||
M 4
|
4.3
|
9
|
1 | 2 |
0.5
|
0.193 | ||
M 5
|
5.3
|
11
|
1.1 | 2.2 |
0.5
|
0.286 | ||
M 6
|
6.4
|
12
|
1.3 | 2.6 |
0.5
|
0.318 | ||
M 7
|
7.4
|
14
|
1.5 | 3 |
0.8
|
0.535 | ||
M 8
|
8.4
|
15
|
1.5 | 3 |
0.8
|
0.76 | ||
M 10
|
10.5
|
21
|
2.1 | 4.2 |
1
|
2.04 | ||
M 12
|
13
|
24
|
2.5 | 5 |
1.2
|
3.01 | ||
M 14
|
15
|
28.0
|
3 | 6 |
1.6
|
5.17 | ||
M 16
|
17
|
30
|
3.2 | 6.4 |
1.6
|
5.65 | ||
M 18
|
19
|
34
|
3.3 | 6.6 |
1.6
|
7.35 | ||
M 20
|
21
|
36
|
3.7 | 7.4 |
1.6
|
8.43 | ||
M 22
|
23
|
40
|
3.9 | 7.8 |
1.8
|
11.9 | ||
M 24
|
25
|
44
|
4.1 | 8.2 |
1.8
|
14.5 |
Standard UNI 8840
Curved and undulated spring washers. Normal series.

Dimensions in mm - source UNI 8840 Typ A |
||||||||
Date of publication: 04/1985 | ||||||||
Thread size
|
d min/nom |
d1 nom |
h min | h max |
s nom
|
|||
M 2
|
2.2
|
4.5
|
0.5
|
1
|
0.3 | |||
M 2.3
|
2.4
|
5
|
0.5
|
1
|
0.3 | |||
M 2.5
|
2.7
|
5.5
|
0.55
|
1.1
|
0.3 | |||
M 3
|
3.2
|
6
|
0.65
|
1.3
|
0.4 | |||
M 3.5
|
3.7
|
7
|
0.7
|
1.4
|
0.4 | |||
M 4
|
4.3
|
8
|
0.8
|
1.6
|
0.5 | |||
M 5
|
5.3
|
10
|
0.9
|
1.8
|
0.5 | |||
M 6
|
6.4
|
11
|
1.1
|
2.2
|
0.5 | |||
M 7
|
7.4
|
12
|
1.2
|
2.4
|
0.5 | |||
M 8
|
8.4
|
15
|
1.7
|
3.4
|
0.5 |
Dimensions in mm - source UNI 8840 Typ A |
||||||||
Date of publication: 04/1985 | ||||||||
Thread size |
d min/nom |
d1 nom |
h min | h max | s min | |||
M 3
|
3.2
|
8
|
0.8 | 1.6 |
0.5
|
|||
M 3.5
|
3.7
|
8
|
0.9 | 1.8 |
0.5
|
|||
M 4
|
4.3
|
9
|
1 | 2 |
0.5
|
|||
M 5
|
5.3
|
11
|
1.1 | 2.2 |
0.5
|
|||
M 6
|
6.4
|
12
|
1.3 | 2.6 |
0.5
|
|||
M 7
|
7.4
|
14
|
1.5 | 3 |
0.8
|
|||
M 8
|
8.4
|
15
|
1.5 | 3 |
0.8
|
|||
M 10
|
10.5
|
21
|
2.1 | 4.2 |
1
|
|||
M 12
|
13
|
24
|
2.5 | 5 |
1.2
|
|||
M 14
|
15
|
28
|
3 | 6 |
1.6
|
|||
M 16
|
17
|
30
|
3.2 | 6.4 |
1.6
|
|||
M 18
|
19
|
34
|
3.3 | 6.6 |
1.6
|
|||
M 20
|
21
|
36
|
3.7 | 7.4 |
1.6
|
|||
M 22
|
23
|
40
|
3.9 | 7.8 |
1.8
|
|||
M 24
|
25
|
44
|
4.1 | 8.2 |
1.8
|
|||
M 27 | 28 | 50 | 4.7 | 9.4 | 2 | |||
M 30 | 31 | 56 | 5 | 10 | 2.2 | |||
M 33 | 34 | 60 | 5.3 | 10.6 | 2.2 | |||
M 36 | 37 | 68 | 5.8 | 11.6 | 2.5 |
Standard NF E27-620
Spring washers, 2 waves
Dettagli
Spring washers, waved and curved


Dimensions in mm - source Din 137 A |
||||||||
Date of publication: 1985 - Norm cancelled without replacement | ||||||||
Thread size
|
d min/nom |
d1 nom |
h min | h max |
s nom
|
≈ mass in Kg x 1000 pcs (ρ=7,85 kg/dm3) | ||
M 2
|
2.2
|
4.5
|
0.5
|
1
|
0.3 | 0.028 | ||
M 2.3
|
2.5
|
5
|
0.5
|
1
|
0.3 | 0.035 | ||
M 2.5
|
2.8
|
5.5
|
0.55
|
1.1
|
0.3 | 0.041 | ||
M 3
|
3.2
|
6
|
0.65
|
1.3
|
0.4 | 0.063 | ||
M 3.5
|
3.7
|
7
|
0.7
|
1.4
|
0.4 | 0.088 | ||
M 4
|
4.3
|
8
|
0.8
|
1.6
|
0.5 | 0.14 | ||
M 5
|
5.3
|
10
|
0.9
|
1.8
|
0.5 | 0.222 | ||
M 6
|
6.4
|
11
|
1.1
|
2.2
|
0.5 | 0.247 | ||
M 7
|
7.4
|
12
|
1.2
|
2.4
|
0.5 | 0.361 | ||
M 8
|
8.4
|
15
|
1.7
|
3.4
|
0.5 | 0.476 | ||
M 10
|
10.5
|
18
|
2
|
4
|
0.8 | 1.05 |
Dimensions in mm - source Din 137 B |
||||||||
Date of publication: 1985 - Norm cancelled without replacement | ||||||||
Thread size |
d min/nom |
d1 nom |
h min | h max | s min | ≈ mass in Kg x 1000 pcs (ρ=7,85 kg/dm3) | ||
M 3
|
3.2
|
8
|
0.8 | 1.6 |
0.5
|
0.166 | ||
M 3.5
|
3.7
|
8
|
0.9 | 1.8 |
0.5
|
0.154 | ||
M 4
|
4.3
|
9
|
1 | 2 |
0.5
|
0.193 | ||
M 5
|
5.3
|
11
|
1.1 | 2.2 |
0.5
|
0.286 | ||
M 6
|
6.4
|
12
|
1.3 | 2.6 |
0.5
|
0.318 | ||
M 7
|
7.4
|
14
|
1.5 | 3 |
0.8
|
0.535 | ||
M 8
|
8.4
|
15
|
1.5 | 3 |
0.8
|
0.76 | ||
M 10
|
10.5
|
21
|
2.1 | 4.2 |
1
|
2.04 | ||
M 12
|
13
|
24
|
2.5 | 5 |
1.2
|
3.01 | ||
M 14
|
15
|
28.0
|
3 | 6 |
1.6
|
5.17 | ||
M 16
|
17
|
30
|
3.2 | 6.4 |
1.6
|
5.65 | ||
M 18
|
19
|
34
|
3.3 | 6.6 |
1.6
|
7.35 | ||
M 20
|
21
|
36
|
3.7 | 7.4 |
1.6
|
8.43 | ||
M 22
|
23
|
40
|
3.9 | 7.8 |
1.8
|
11.9 | ||
M 24
|
25
|
44
|
4.1 | 8.2 |
1.8
|
14.5 |
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