|
英制锯齿形螺纹的自由级(free class)公差 0.001 in |
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|
公称直径范围 /in |
优 选 直 径 /in |
牙 数 |
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|
12 |
10 |
8 |
6 |
5 |
4 |
3 |
21/2 |
2 |
11/2 |
11/4 |
1 |
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|
> |
≤ |
中径和顶径公差 |
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|
11) |
11/2 |
1,11/8,11/4,13/8,11/2 |
10.7 |
11.4 |
12.5 |
13.8 |
— |
— |
— |
— |
— |
— |
— |
— |
|
11/2 |
21/2 |
13/4,2,21/4,21/2 |
11.3 |
12.0 |
13.0 |
14.4 |
15.4 |
— |
— |
— |
— |
— |
— |
— |
|
21/2 |
4 |
23/4,3,31/2,4 |
11.9 |
12.6 |
13.6 |
15.0 |
16.0 |
17.4 |
— |
— |
— |
— |
— |
— |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4 |
6 |
41/2,5,51/2,6 |
— |
13.3 |
14.3 |
15.7 |
16.7 |
18.1 |
20.1 |
— |
— |
— |
— |
— |
|
6 |
10 |
7,8,9,10 |
— |
14.2 |
15.2 |
16.6 |
17.6 |
19.0 |
21.0 |
22.4 |
24.3 |
— |
— |
— |
|
10 |
16 |
11,12,14,16 |
— |
— |
16.2 |
17.6 |
18.7 |
20.0 |
22.0 |
23.5 |
25.4 |
28.2 |
30.3 |
— |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
16 |
24 |
18,20,22,24 |
— |
— |
17.3 |
18.7 |
19.7 |
21.1 |
23.1 |
24.6 |
26.5 |
29.3 |
31.4 |
34.1 |
|
注:当旋合长度为10P 时,自由级中径公差等于11/2 1)包含公称直径1。 |
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