基本尺寸
惠氏粗牙螺纹(B.S.W.)的基本尺寸
|
惠氏粗牙螺纹(B.S.W.)的基本尺寸 in |
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|---|---|---|---|---|---|---|
|
公称直径 |
牙数 |
螺距 |
牙高 |
大径 |
中径 |
小径 |
|
1/8 |
40 |
0.02500 |
0.0160 |
0.1250 |
0.1090 |
0.0930 |
|
3/16 |
24 |
0.04167 |
0.0267 |
0.1875 |
0.1608 |
0.1341 |
|
1/4 |
20 |
0.05000 |
0.0320 |
0.2500 |
0.2180 |
0.1860 |
|
|
|
|
|
|
|
|
|
5/16 |
18 |
0.05556 |
0.0356 |
0.3125 |
0.2769 |
0.2413 |
|
3/8 |
16 |
0.06250 |
0.0400 |
0.3750 |
0.3350 |
0.2950 |
|
7/16 |
14 |
0.07143 |
0.0457 |
0.4375 |
0.3918 |
0.3461 |
|
|
|
|
|
|
|
|
|
1/2 |
12 |
0.08333 |
0.0534 |
0.5000 |
0.4466 |
0.3932 |
|
9/16 |
12 |
0.08333 |
0.0534 |
0.5625 |
0.5091 |
0.4557 |
|
5/8 |
11 |
0.09091 |
0.0582 |
0.6250 |
0.5668 |
0.5086 |
|
|
|
|
|
|
|
|
|
11/16 |
11 |
0.09091 |
0.0582 |
0.6875 |
0.6293 |
0.5711 |
|
3/4 |
10 |
0.10000 |
0.0640 |
0.7500 |
0.6860 |
0.6220 |
|
7/8 |
9 |
0.11111 |
0.0711 |
0.8750 |
0.8039 |
0.7328 |
|
|
|
|
|
|
|
|
|
1 |
8 |
0.12500 |
0.0800 |
1.0000 |
0.9200 |
0.8400 |
|
11/8 |
7 |
0.14286 |
0.0915 |
1.1250 |
1.0335 |
0.9420 |
|
11/4 |
7 |
0.14286 |
0.0915 |
1.2500 |
1.1585 |
1.0670 |
|
|
|
|
|
|
|
|
|
11/2 |
6 |
0.16667 |
0.1067 |
1.5000 |
1.3933 |
1.2866 |
|
13/4 |
5 |
0.20000 |
0.1281 |
1.7500 |
1.6219 |
1.4938 |
|
2 |
4.5 |
0.22222 |
0.1423 |
2.0000 |
1.8577 |
1.7154 |
|
|
|
|
|
|
|
|
|
21/4 |
4 |
0.25000 |
0.1601 |
2.2500 |
2.0899 |
1.9298 |
|
21/2 |
4 |
0.25000 |
0.1601 |
2.5000 |
2.3399 |
2.1798 |
|
23/4 |
3.5 |
0.28571 |
0.1830 |
2.7500 |
2.5670 |
2.3840 |
|
|
|
|
|
|
|
|
|
3 |
3.5 |
0.28571 |
0.1830 |
3.0000 |
2.8170 |
2.6340 |
|
31/4 |
3.25 |
0.30769 |
0.1970 |
3.2500 |
3.0530 |
2.8560 |
|
31/2 |
3.25 |
0.30769 |
0.1970 |
3.5000 |
3.3030 |
3.1060 |
|
|
|
|
|
|
|
|
|
33/4 |
3 |
0.33333 |
0.2134 |
3.7500 |
3.5366 |
3.3232 |
|
4 |
3 |
0.33333 |
0.2134 |
4.0000 |
3.7866 |
3.5732 |
|
41/2 |
2.875 |
0.34783 |
0.2227 |
4.5000 |
4.2773 |
4.0546 |
|
|
|
|
|
|
|
|
|
5 |
2.75 |
0.63664 |
0.2328 |
5.0000 |
4.7672 |
4.5344 |
|
51/2 |
2.625 |
0.38095 |
0.2439 |
5.5000 |
5.2561 |
5.0122 |
|
6 |
2.5 |
0.40000 |
0.2561 |
6.0000 |
5.7439 |
5.4878 |
惠氏细牙螺纹(B.S.F.)的基本尺寸
|
惠氏细牙螺纹(B.S.F.)的基本尺寸 in |
||||||
|---|---|---|---|---|---|---|
|
公称直径 |
牙数 |
螺距 |
牙高 |
大径 |
中径 |
小径 |
|
3/16 |
32 |
0.03125 |
0.0200 |
0.1875 |
0.1675 |
0.1475 |
|
7/32 |
28 |
0.03571 |
0.0229 |
0.2188 |
0.1959 |
0.1730 |
|
1/4 |
26 |
0.03846 |
0.0246 |
0.2500 |
0.2254 |
0.2008 |
|
9/32 |
26 |
0.03846 |
0.0246 |
0.2812 |
0.2566 |
0.2320 |
|
5/16 |
22 |
0.04545 |
0.0291 |
0.3125 |
0.2834 |
0.2543 |
|
3/8 |
20 |
0.05000 |
0.0320 |
0.3750 |
0.3430 |
0.3110 |
|
7/16 |
18 |
0.05556 |
0.0356 |
0.4375 |
0.4019 |
0.3663 |
|
1/2 |
16 |
0.06250 |
0.0400 |
0.5000 |
0.4600 |
0.4200 |
|
9/16 |
16 |
0.06250 |
0.0400 |
0.5625 |
0.5225 |
0.4825 |
|
5/8 |
14 |
0.07143 |
0.0457 |
0.6250 |
0.5793 |
0.5336 |
|
11/16 |
14 |
0.07143 |
0.0457 |
0.6875 |
0.6418 |
0.5961 |
|
3/4 |
12 |
0.08333 |
0.0534 |
0.7500 |
0.6966 |
0.6432 |
|
7/8 |
11 |
0.09091 |
0.0582 |
0.8750 |
0.8468 |
0.7586 |
|
1 |
10 |
0.10000 |
0.0640 |
1.0000 |
0.9360 |
0.8720 |
|
11/8 |
9 |
0.11111 |
0.0711 |
1.1250 |
1.0539 |
0.9828 |
|
11/4 |
9 |
0.11111 |
0.0711 |
1.2500 |
1.1789 |
1.1078 |
|
13/8 |
8 |
0.12500 |
0.0800 |
1.3750 |
1.2950 |
1.2150 |
|
11/2 |
8 |
0.12500 |
0.0800 |
1.5000 |
1.4200 |
1.3400 |
|
15/8 |
8 |
0.12500 |
0.0800 |
1.6250 |
1.5450 |
1.4650 |
|
13/4 |
7 |
0.14286 |
0.0915 |
1.7500 |
1.6585 |
1.5670 |
|
2 |
7 |
0.14286 |
0.0915 |
2.0000 |
1.9085 |
1.8170 |
|
21/4 |
6 |
0.16667 |
0.1067 |
2.2500 |
2.1433 |
2.0366 |
|
21/2 |
6 |
0.16667 |
0.1067 |
2.5000 |
2.3933 |
2.2866 |
|
23/4 |
6 |
0.16667 |
0.1067 |
2.7500 |
2.6433 |
2.5366 |
|
3 |
5 |
0.20000 |
0.1281 |
3.0000 |
2.8719 |
2.7438 |
|
31/4 |
5 |
0.20000 |
0.1281 |
3.2500 |
3.1219 |
2.9938 |
|
31/2 |
4.5 |
0.22222 |
0.1423 |
3.5000 |
3.3577 |
3.2154 |
|
33/4 |
4.5 |
0.22222 |
0.1423 |
3.7500 |
3.6077 |
3.4654 |
|
4 |
4.5 |
0.22222 |
0.1423 |
4.0000 |
3.8577 |
3.7154 |
|
41/4 |
4 |
0.25000 |
0.1601 |
4.2500 |
4.0899 |
3.9298 |
|
注：对大直径螺纹，推荐采用4牙。 |
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