矮牙爱克母螺纹
基本尺寸
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矮牙爱克母螺纹的基本尺寸 in |
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|---|---|---|---|---|---|---|
|
公称直径 |
牙 数 |
大 径 |
中 径 D2、d2 |
小 径 |
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|
D4 |
d |
D1 |
d3 |
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|
1/4 |
16 |
0.260 0 |
0.250 0 |
0.231 2 |
0.212 5 |
0.202 5 |
|
5/16 |
14 |
0.322 5 |
0.312 5 |
0.291 1 |
0.269 6 |
0.259 6 |
|
3/8 |
12 |
0.385 0 |
0.375 0 |
0.350 0 |
0.325 0 |
0.315 0 |
|
7/16 |
12 |
0.447 5 |
0.437 5 |
0.412 5 |
0.387 5 |
0.377 5 |
|
1/2 |
10 |
0.520 0 |
0.500 0 |
0.470 0 |
0.440 0 |
0.420 0 |
|
|
|
|
|
|
|
|
|
5/8 |
8 |
0.645 0 |
0.625 0 |
0.5875 |
0.550 0 |
0.530 0 |
|
3/4 |
6 |
0.770 0 |
0.750 0 |
0.700 0 |
0.650 0 |
0.630 0 |
|
7/8 |
6 |
0.895 0 |
0.875 0 |
0.825 0 |
0.775 0 |
0.755 0 |
|
1 |
5 |
1.020 0 |
1.000 0 |
0.940 0 |
0.880 0 |
0.860 0 |
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|
|
|
|
|
|
|
|
11/8 |
5 |
1.145 0 |
1.125 0 |
1.065 0 |
1.005 0 |
0.985 0 |
|
11/4 |
5 |
1.270.0 |
1.250 0 |
1.190 0 |
1.130 0 |
1.110 0 |
|
13/8 |
4 |
1.395.0 |
1.375 0 |
1.300 0 |
1.225 0 |
1.205 0 |
|
11/2 |
4 |
1.520 0 |
1.500 0 |
1.425 0 |
1.350 0 |
1.330 0 |
|
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|
|
|
|
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|
13/4 |
4 |
1.770 0 |
1 750 0 |
1.675 0 |
1.600 0 |
1.580 0 |
|
2 |
4 |
2.020 0 |
2.000 0 |
1.925 0 |
1.850 0 |
1.830 0 |
|
21/4 |
3 |
2.270 0 |
2.250 0 |
2.150 0 |
2.050 0 |
2.030 0 |
|
21/2 |
3 |
2.520 0 |
2.500 0 |
2.400 0 |
2.300 0 |
2.280 0 |
|
|
|
|
|
|
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|
23/4 |
3 |
2.770 0 |
2.750 0 |
2.650 0 |
2.550 0 |
2.530 0 |
|
3 |
2 |
3.020 0 |
3.000 0 |
2.850 0 |
2.700 0 |
2.680 0 |
|
31/2 |
2 |
3.520 0 |
3.500 0 |
3.350 0 |
3.200 0 |
3.180 0 |
|
4 |
2 |
4.020 0 |
4.000 0 |
3.850 0 |
3.700 0 |
3.680 0 |
|
41/2 |
2 |
4.520 0 |
4.500 0 |
4.350 0 |
4.200 0 |
4.180 0 |
|
5 |
2 |
5.020 0 |
5.000 0 |
4.850 0 |
4.700 0 |
4.680 0 |
|
其中：D2＝d2＝D -0.3P； D1＝D -0.6P； D4＝D+2ac； d3＝d-0.6P-2ac； 2ac＝0.020 in(牙数小于和等于10牙)或0.010 in(牙数大于10牙)。 |
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