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对中爱克母螺纹的顶径和底径公差 in |
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|
公称直径 |
牙数 |
小径公差 |
大 径 公 差 |
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|
内螺纹 |
2C 螺纹 |
3C 外螺纹 |
3C 内螺纹 |
4C 外螺纹 |
4C 内螺纹 |
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|
1/4 |
16 |
0.005 0 |
0.001 8 |
0.000 8 |
0.001 8 |
0.000 5 |
0.001 0 |
|
5/16 |
14 |
0.005 0 |
0.002 0 |
0.000 8 |
0.002 0 |
0.000 6 |
0.001 1 |
|
3/8 |
12 |
0.005 0 |
0.002 1 |
0.000 9 |
0.002 1 |
0.000 6 |
0.001 2 |
|
7/16 |
12 |
0.005 0 |
0.002 3 |
0.001 0 |
0.002 3 |
0.000 7 |
0.001 3 |
|
1/2 |
10 |
0.005 0 |
0.002 5 |
0.001 1 |
0.002 5 |
0.000 7 |
0.001 4 |
|
|
|
|
|
|
|
|
|
|
5/8 |
8 |
0.006 2 |
0.002 8 |
0.001 2 |
0.002 8 |
0.000 8 |
0.001 6 |
|
3/4 |
6 |
0.008 3 |
0.003 0 |
0.001 3 |
0.003 0 |
0.000 9 |
0.001 7 |
|
7/8 |
6 |
0.008 3 |
0.003 3 |
0.001 4 |
0.003 3 |
0.000 9 |
0.001 9 |
|
1 |
5 |
0.010 0 |
0.003 5 |
0.001 5 |
0.003 5 |
0.001 0 |
0.002 0 |
|
11/8 |
5 |
0.010 0 |
0.003 7 |
0.001 6 |
0.003 7 |
0.001 1 |
0.002 1 |
|
|
|
|
|
|
|
|
|
|
11/4 |
5 |
0.010 0 |
0.003 9 |
0.001 7 |
0.003 9 |
0.001 1 |
0.002 2 |
|
13/8 |
4 |
0.012 5 |
0.004 1 |
0.001 8 |
0.004 1 |
0.001 2 |
0.002 3 |
|
11/2 |
4 |
0.012 5 |
0.004 3 |
0.001 8 |
0.004 3 |
0.001 2 |
0.002 4 |
|
13/4 |
4 |
0.012 5 |
0.004 6 |
0.002 0 |
0.004 6 |
0.001 3 |
0.002 6 |
|
2 |
4 |
0.012 5 |
0.004 9 |
0.002 1 |
0.004 9 |
0.001 4 |
0.002 8 |
|
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|
|
|
|
|
|
|
|
21/4 |
3 |
0.016 7 |
0.005 3 |
0.002 3 |
0.005 3 |
0.001 5 |
0.003 0 |
|
21/2 |
3 |
0.016 7 |
0.005 5 |
0.002 4 |
0.005 5 |
0.001 6 |
0.003 2 |
|
23/4 |
3 |
0.016 7 |
0.005 8 |
0.002 5 |
0.005 8 |
0.001 7 |
0.003 3 |
|
3 |
2 |
0.025 0 |
0.006 1 |
0.002 6 |
0.006 1 |
0.001 7 |
0.003 5 |
|
|
|
|
|
|
|
|
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|
31/2 |
2 |
0.025 0 |
0.006 5 |
0.002 8 |
0.006 5 |
0.001 9 |
0.003 7 |
|
4 |
2 |
0.025 0 |
0.007 0 |
0.003 0 |
0.007 0 |
0.002 0 |
0.004 0 |
|
41/2 |
2 |
0.025 0 |
0.007 4 |
0.003 2 |
0.007 4 |
0.002 1 |
0.004 2 |
|
5 |
2 |
0.025 0 |
0.007 8 |
0.003 4 |
0.007 8 |
0.002 2 |
0.004 5 |
|
注：1．内螺纹小径公差为0.05 P，最小值为0.005 in。 2．外螺纹小径公差为 1.5 倍的中径公差。 3．2C、3C和4C的内螺纹大径公差分别为0.003 5 4．2C、3C和4C的外螺纹大径公差分别为0.003 5 |
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