Nakretki szesciokatne i nakretki kolnierzowe ze stali z momentem samozaciskowym, seria calowa (IFI 100/107)
Ten produkt podlega następującym normom:
Nakretki szesciokatne i nakretki kolnierzowe ze stali z momentem samozaciskowym, seria calowa (IFI 100/107)
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Wymiary w calach (1 cal = 25,4 mm) zródlo IFI 100-107 tabela 2 - nakretki szesciokatne zwykle i lekkie z momentem dokrecajacym
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d Rozmiar gwintu
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UNC (liczba zwojów x cal)
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UNF (liczba zwojów x cal)
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F podstawowy |
G min |
Maks. wysokosc wkladu górnego |
Maks. wysokosc wkladu górnego |
Maks. wysokosc wkladu w calosci z metalu |
Minimalna wysokosc wkladu |
| cale |
mm |
Seria regularna |
Seria lekka |
Seria regularna |
Seria lekka |
| 4 |
2,84 |
40 |
48 |
0,25 |
0,25 |
0,275 |
0,275 |
0,163 |
0,163 |
0,066 |
| 6 |
3,51 |
32 |
40 |
0,313 |
0,313 |
0,344 |
0,344 |
0,188 |
0,171 |
0,075 |
| 8 |
4,17 |
32 |
36 |
0,344 |
0,344 |
0,378 |
0,378 |
0,239 |
0,191 |
0,083 |
| 10 |
4,83 |
24 |
32 |
0,375 |
0,375 |
0,413 |
0,413 |
0,249 |
0,241 |
0,083 |
| 12 |
5,49 |
24 |
28 |
0,438 |
0,438 |
0,482 |
0,482 |
0,328 |
0,241 |
0,103 |
|
1/4
|
6,35 |
20 |
28 |
0,438 |
0,438 |
0,488 |
0,488 |
0,328 |
0,288 |
0,145 |
|
5/16
|
7,94 |
18 |
24 |
0,5 |
0,5 |
0,5 |
0,5 |
0,557 |
0,557 |
0,359 |
0,336 |
0,166 |
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3/8
|
9,53 |
16 |
24 |
0,56 |
0,56 |
0,628 |
0,628 |
0,469 |
0,415 |
0,198 |
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7/16
|
11,11 |
14 |
20 |
0,69 |
0,69 |
0,768 |
0,768 |
0,524 |
0,463 |
0,223 |
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1/2
|
12,70 |
13 |
20 |
0,75 |
0,75 |
0,84 |
0,84 |
0,609 |
0,573 |
0,262 |
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9/16
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14,29 |
12 |
18 |
0,875 |
0,875 |
0,98 |
0,98 |
0,656 |
0,621 |
0,286 |
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5/8
|
15,88 |
11 |
18 |
0,94 |
0,94 |
1,05 |
1,05 |
0,765 |
0,731 |
0,329 |
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3/4
|
19,05 |
10 |
16 |
1,125 |
1,06 |
1,24 |
1,19 |
0,89 |
0,827 |
0,382 |
|
7/8
|
22,23 |
9 |
14 |
1,313 |
1,25 |
1,447 |
1,4 |
1 |
0,922 |
0,45 |
|
1
|
25,40 |
8 |
12 |
1,5 |
1,44 |
1,653 |
1,62 |
1,124 |
1,018 |
0,513 |
| 1-1/8 |
28,58 |
7 |
12 |
1,69 |
1,63 |
1,86 |
1,83 |
1,281 |
1,176 |
0,576 |
| 1-1/4 |
31,75 |
7 |
12 |
1,875 |
1,82 |
2,066 |
2,05 |
1,422 |
1,272 |
0,628 |
| 1-3/8 |
34,93 |
6 |
12 |
2,06 |
2 |
2,273 |
2,26 |
1,609 |
1,4 |
0,681 |
| 1-1/2 |
38,10 |
6 |
12 |
2,25 |
2,188 |
2,48 |
2,47 |
1,671 |
1,53 |
0,757 |
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Wymiary w calach (1 cal = 25,4 mm) zródlo IFI 100-107 tabela 3 – nakretki szesciokatne z kolnierzem i momentem dokrecajacym
|
|
d Rozmiar gwintu
|
UNC (liczba gwintów x cal)
|
UNF (liczba gwintów x cal)
|
F podstawowy
|
G min
|
H maks |
K min |
J min |
| cale |
mm |
|
1/4
|
6,35 |
20 |
28 |
0,438 |
0,488 |
0,3 |
0,04 |
0,14 |
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5/16
|
7,94 |
18 |
24 |
0,5 |
0,557 |
0,365 |
0,05 |
0,17 |
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3/8
|
9,53 |
16 |
24 |
0,56 |
0,628 |
0,425 |
0,06 |
0,2 |
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7/16
|
11,11 |
14 |
20 |
0,69 |
0,768 |
0,495 |
0,07 |
0,23 |
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1/2
|
12,70 |
13 |
20 |
0,75 |
0,84 |
0,555 |
0,08 |
0,26 |
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9/16
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14,29 |
12 |
18 |
0,875 |
0,98 |
0,625 |
0,09 |
0,29 |
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5/8
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15,88 |
11 |
18 |
0,94 |
1,05 |
0,69 |
0,1 |
0,32 |
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3/4
|
19,05 |
10 |
16 |
1,06 |
1,19 |
0,825 |
0,11 |
0,38 |
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Norma IFI 100-107 okresla wymagania wymiarowe i mechaniczne dla trzech klas (A, B, C) stalowych nakretek szesciokatnych z momentem samozaciskowym oraz dwóch klas (F, G) stalowych nakretek szesciokatnych z kolnierzem z momentem samozaciskowym. Istnieja równiez trzy podstawowe konstrukcje: a) calkowicie metalowa, jednoczesciowa konstrukcja, która generuje moment samozaciskowy poprzez odksztalcenie gwintu nakretki; b) nakretki metalowe z dodanym niemetalowym korkiem lub zaslepka w gwincie; c) nakretki dwuczesciowe z pelnym pierscieniem niemetalowym, zazwyczaj osadzonym i utrzymywanym na górnej powierzchni.
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