|
英制锯齿形螺纹的中等级(medium 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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|
20 |
16 |
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 |
6.0 |
6.5 |
7.1 |
7.6 |
8.3 |
9.2 |
— |
— |
— |
— |
— |
— |
— |
— |
|
11/2 |
21/2 |
13/4，2，21/4，21/2 |
6.4 |
6.8 |
7.5 |
8.0 |
8.6 |
9.6 |
10.3 |
— |
— |
— |
— |
— |
— |
— |
|
21/2 |
4 |
23/4，3，31/2，4 |
6.8 |
7.3 |
8.0 |
8.4 |
9.1 |
10.0 |
10.7 |
11.6 |
— |
— |
— |
— |
— |
— |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4 |
6 |
41/2，5，51/2，6 |
7.3 |
7.7 |
8.4 |
8.9 |
9.5 |
10.5 |
11.2 |
12.1 |
13.4 |
— |
— |
— |
— |
— |
|
6 |
10 |
7，8，9，10 |
— |
8.3 |
9.0 |
9.5 |
10.1 |
11.1 |
11.7 |
12.7 |
14.0 |
14.9 |
16.2 |
— |
— |
— |
|
10 |
16 |
11，12，14，16 |
— |
9.0 |
9.7 |
10.2 |
10.8 |
11.8 |
12.4 |
13.4 |
14.7 |
15.6 |
16.9 |
18.8 |
20.2 |
— |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
16 |
24 |
18，20，22，24 |
— |
— |
10.4 |
10.9 |
11.5 |
12.5 |
13.2 |
14.1 |
15.4 |
16.4 |
17.7 |
19.6 |
20.9 |
22.7 |
|
注：当旋合长度为10P 时，中等级中径公差等于 1)包含公称直径1。 |
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