G管螺纹的基本尺寸 | |||||||||||||||
基本尺寸 | 中径公差 | 小径公差 | 大径公差 | ||||||||||||
螺纹的 尺寸 代号 |
25.4mm 内包含 的牙数 |
螺距 P |
牙高 h |
大径 | 中径 | 小径 | 内螺纹 | 外螺纹 | 内螺纹 | 外螺纹 | |||||
下偏 差 |
上偏差 + |
下偏差 |
上偏 差 |
下偏 差 |
上偏差 + |
下偏 差 |
上偏 差 |
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A级 | B级 | ||||||||||||||
1/8 | 28 | 0.907 | 0.581 | 9.728 | 9.147 | 8.566 | 0 | 0.107 | -0.107 | -0.214 | 0 | 0 | 0.282 | -0.214 | 0 |
1/4 | 19 | 1.337 | 0.856 | 13.157 | 12.301 | 11.445 | 0 | 0.125 | -0.125 | -0.250 | 0 | 0 | 0.445 | -0.250 | 0 |
3/8 | 19 | 1.337 | 0.856 | 16.662 | 15.806 | 14.950 | 0 | 0.125 | -0.125 | -0.250 | 0 | 0 | 0.445 | -0.250 | 0 |
1/2 | 14 | 1.814 | 1.162 | 20.955 | 19.793 | 18.631 | 0 | 0.142 | -0.142 | -0.284 | 0 | 0 | 0.541 | -0.284 | 0 |
5/8 | 14 | 1.814 | 1.162 | 22.911 | 21.749 | 20.587 | 0 | 0.142 | -0.142 | -0.284 | 0 | 0 | 0.541 | -0.284 | 0 |
3/4 | 14 | 1.814 | 1.162 | 26.441 | 25.279 | 24.117 | 0 | 0.142 | -0.142 | -0.284 | 0 | 0 | 0.541 | -0.284 | 0 |
7/8 | 14 | 1.814 | 1.162 | 30.201 | 29.039 | 27.877 | 0 | 0.142 | -0.142 | -0.284 | 0 | 0 | 0.541 | -0.284 | 0 |
1 | 11 | 2.309 | 1.479 | 33.249 | 31.770 | 30.291 | 0 | 0.18 | -0.180 | -0.360 | 0 | 0 | 0.640 | -0.360 | 0 |
1-1/8 | 11 | 2.309 | 1.479 | 37.897 | 36.418 | 34.939 | 0 | 0.18 | -0.180 | -0.360 | 0 | 0 | 0.640 | -0.360 | 0 |
1- | 11 | 2.309 | 1.479 | 41.910 | 40.431 | 38.952 | 0 | 0.18 | -0.180 | -0.360 | 0 | 0 | 0.640 | -0.360 | 0 |
1-1/2 | 11 | 2.309 | 1.479 | 47.803 | 46.324 | 44.845 | 0 | 0.18 | -0.180 | -0.360 | 0 | 0 | 0.640 | -0.360 | 0 |
1- | 11 | 2.309 | 1.479 | 53.746 | 52.267 | 50.788 | 0 | 0.18 | -0.180 | -0.360 | 0 | 0 | 0.640 | -0.360 | 0 |
2 | 11 | 2.309 | 1.479 | 59.614 | 58.135 | 56.656 | 0 | 0.18 | -0.180 | -0.360 | 0 | 0 | 0.640 | -0.360 | 0 |
2- | 11 | 2.309 | 1.479 | 65.710 | 64.231 | 62.752 | 0 | 0.217 | -0.217 | -0.434 | 0 | 0 | 0.640 | -0.434 | 0 |
2-1/2 | 11 | 2.309 | 1.479 | 75.184 | 73.705 | 72.226 | 0 | 0.217 | -0.217 | -0.434 | 0 | 0 | 0.640 | -0.434 | 0 |
2- | 11 | 2.309 | 1.479 | 81.534 | 80.055 | 78.576 | 0 | 0.217 | -0.217 | -0.434 | 0 | 0 | 0.640 | -0.434 | 0 |
3 | 11 | 2.309 | 1.479 | 87.884 | 86.405 | 84.926 | 0 | 0.217 | -0.217 | -0.434 | 0 | 0 | 0.640 | -0.434 | 0 |
3-1/2 | 11 | 2.309 | 1.479 | 100.330 | 98.851 | 97.372 | 0 | 0.217 | -0.217 | -0.434 | 0 | 0 | 0.640 | -0.434 | 0 |
4 | 11 | 2.309 | 1.479 | 113.030 | 111.551 | 110.072 | 0 | 0.217 | -0.217 | -0.434 | 0 | 0 | 0.640 | -0.434 | 0 |