|
2级标准系列统一螺纹的极限尺寸 |
|||||||||||
|
公称直径 -牙数 |
系列 代号 |
|
2B 内螺纹 |
||||||||
|
大径 d |
中径 d2 |
UNR 小径d3 (参考) |
小径 D1 |
中径 D2 |
大径 D |
||||||
|
max |
min |
max |
min |
max |
min |
max |
min |
max |
min |
||
|
15/16-20 |
UNEF |
0.936 1 |
0.928 0 |
0.903 6 |
0.899 1 |
0.876 6 |
0.883 |
0.895 |
0.905 0 |
0.910 9 |
0.937 5 |
|
15/16-28 |
UN |
0.936 3 |
0.929 8 |
0.913 1 |
0.909 2 |
0.893 8 |
0.899 |
0.907 |
0.914 3 |
0.919 4 |
0.937 5 |
|
15/16-32 |
UN |
0.936 4 |
0.930 4 |
0.916 1 |
0.912 3 |
0.899 2 |
0.904 |
0.911 |
0.917 2 |
0.922 1 |
0.937 5 |
|
1-8 |
UNC |
0.998 0 |
0.983 0 |
0.916 8 |
0.910 1 |
0.849 2 |
0.865 |
0.890 |
0.918 8 |
0.927 6 |
1.000 0 |
|
1-12 |
UNF |
0.998 2 |
0.986 8 |
0.944 1 |
0.938 2 |
0.899 0 |
0.910 |
0.928 |
0.945 9 |
0.953 5 |
1.000 0 |
|
1-16 |
UN |
0.998 5 |
0.989 1 |
0.957 9 |
0.952 9 |
0.924 1 |
0.932 |
0.946 |
0.959 4 |
0.965 9 |
1.000 0 |
|
1-20 |
UNEF |
0.998 6 |
0.990 5 |
0.966 1 |
0.961 6 |
0.939 1 |
0.946 |
0.957 |
0.967 5 |
0.973 4 |
1.000 0 |
|
1-28 |
UN |
0.998 8 |
0.992 3 |
0.975 6 |
0.971 6 |
0.956 3 |
0.961 |
0.970 |
0.976 8 |
0.982 0 |
1.000 0 |
|
1-32 |
UN |
0.998 9 |
0.992 9 |
03978 6 |
0.974 8 |
0.961 7 |
0.966 |
0.974 |
0.979 7 |
0.984 6 |
1.000 0 |
|
11/16-8 |
UN |
1.060 5 |
1.045 5 |
0.979 3 |
0.972 5 |
0.911 7 |
0.927 |
0.952 |
0.981 3 |
0.990 2 |
1.062 5 |
|
11/16-12 |
UN |
1.060 8 |
1.049 4 |
1.006 7 |
1.001 0 |
0.961 6 |
0972 |
0.990 |
1.008 4 |
1.015 8 |
1.062 5 |
|
11/16-16 |
UN |
1.061 0 |
1.051 6 |
1.020 4 |
1.015 4 |
0.986 6 |
0.995 |
1.009 |
1.021 9 |
1.028 4 |
1.062 5 |
|
11/16-18 |
UNEF |
1.061 1 |
1.052 4 |
1.025 0 |
1.020 2 |
0.994 9 |
1.002 |
1.015 |
1.026 4 |
1.032 6 |
1.062 5 |
|
11/16-20 |
UN |
1.061 1 |
1.053 0 |
1.028 6 |
1.024 0 |
1.001 6 |
1.008 |
1.020 |
1.030 0 |
1.035 9 |
1.062 5 |
|
11/16-28 |
UN |
1.061 3 |
1.054 8 |
1.038 1 |
1.034 1 |
1.018 8 |
1.024 |
1.032 |
1.039 3 |
1.044 5 |
1.062 5 |
|
11/8-7 |
UNC |
1.122 8 |
1.106 4 |
1.030 0 |
1.022 8 |
0.952 7 |
0.970 |
0.998 |
1.032 2 |
1.041 6 |
1.125 0 |
|
11/8-8 |
UN |
1.122 9 |
1.107 9 |
1.041 7 |
1.034 8 |
0.974 1 |
0.990 |
1.015 |
1.043 8 |
1.052 8 |
1.125 0 |
|
11/8-12 |
UNF |
1.123 2 |
1.111 8 |
1.069 1 |
1.063 1 |
1.024 0 |
1.035 |
1.053 |
1.070 9 |
1.078 7 |
1.125 0 |
|
11/8-16 |
UN |
1.123 5 |
1.114 1 |
1.082 9 |
1.077 9 |
1.049 1 |
1.057 |
1.071 |
1.084 4 |
1.091 0 |
1.125 0 |
|
11/8-18 |
UNEF |
1.123 6 |
1.114 9 |
1.087 5 |
1.082 7 |
1.057 4 |
1.065 |
1.078 |
1.088 9 |
1.095 1 |
1.125 0 |
|
11/8-20 |
UN |
1.123 6 |
1.115 5 |
1.091 1 |
1.086 5 |
1.064 1 |
1.071 |
1.082 |
1.092 5 |
1.098 5 |
1.125 0 |
|
11/8-28 |
UN |
1.123 8 |
1.117 3 |
1.100 6 |
1.096 6 |
1.081 3 |
1.086 |
1.095 |
1.101 8 |
1.107 0 |
1.125 0 |
|
13/16-8 |
UN |
1.185 4 |
1.170 4 |
1.104 2 |
1.097 2 |
1.036 6 |
1.052 |
1.077 |
1.106 3 |
1.115 4 |
1.187 5 |
|
13/16-12 |
UN |
1.185 8 |
1.174 4 |
1.131 7 |
1.126 0 |
1.086 6 |
1.097 |
1.115 |
1.133 4 |
1.140 9 |
1.187 5 |
|
13/16-16 |
UN |
1.186 0 |
1.176 6 |
1.145 4 |
1.140 3 |
1.111 6 |
1.120 |
1.134 |
1.146 9 |
1.153 5 |
1.187 5 |
|
13/16-18 |
UNEF |
1.186 1 |
1.177 4 |
1.150 0 |
1.145 2 |
1.119 9 |
1.127 |
1.140 |
1.151 4 |
1.157 7 |
1.187 5 |
|
13/16-20 |
UN |
1.186 1 |
1.178 0 |
1.153 6 |
1.149 0 |
1.126 6 |
1.133 |
1.145 |
1.155 0 |
1.161 0 |
1.187 5 |
|
13/16-28 |
UN |
1.186 3 |
1.179 8 |
1.163 1 |
1.159 0 |
1.143 8 |
1.149 |
1.157 |
1.164 3 |
1.169 6 |
1.187 5 |
|
11/4-7 |
UNC |
1.247 8 |
1.231 4 |
1.155 0 |
1.147 6 |
1.077 7 |
1.095 |
1.123 |
1.157 2 |
1.166 8 |
1.250 0 |
|
11/4-8 |
UN |
1.247 9 |
1.232 9 |
1.166 7 |
1.159 7 |
1.099 1 |
1.115 |
1.140 |
1.168 8 |
1.178 0 |
1.250 0 |
|
11/4-12 |
UNF |
1.248 2 |
1.236 8 |
1.194 1 |
1.187 9 |
1.149 0 |
1.160 |
1.178 |
1.195 9 |
1.203 9 |
1.250 0 |
|
11/4-16 |
UN |
1.248 5 |
1.239 1 |
1.207 9 |
1.202 8 |
1.174 1 |
1.182 |
1.196 |
1.209 4 |
1.216 0 |
1.250 0 |
|
11/4-18 |
UNEF |
1.248 5 |
1.239 8 |
1.212 4 |
1.207 5 |
1.182 3 |
1.190 |
1.203 |
1.213 9 |
1.220 2 |
1.250 0 |
|
11/4-20 |
UN |
1.248 6 |
1.240 5 |
1.216 1 |
1.211 4 |
1.189 1 |
1.196 |
1.207 |
1.217 5 |
1.223 6 |
1.250 0 |
|
11/4-28 |
UN |
1.248 8 |
1.242 3 |
1.225 6 |
1.221 5 |
1.206 3 |
1.211 |
1.220 |
1.226 8 |
1.232 1 |
1.250 0 |
|
15/16-8 |
UN |
1.310 4 |
1.295 4 |
1.229 2 |
1.222 1 |
1.161 6 |
1.177 |
1.202 |
1.231 3 |
1.240 5 |
1.312 5 |
|
15/16-12 |
UN |
1.310 8 |
1.299 4 |
1.256 7 |
1.250 9 |
1.211 6 |
1.222 |
1.240 |
1.258 4 |
1.265 9 |
1.312 5 |
|
15/16-16 |
UN |
1.311 0 |
1.301 6 |
1.270 4 |
1.265 3 |
1.236 6 |
1.245 |
1.259 |
1.271 9 |
1.278 6 |
1.312 5 |
|
15/16-18 |
UNEF |
1.311 0 |
1.302 3 |
1.274 9 |
1.270 0 |
1.244 8 |
1.252 |
1.265 |
1.276 4 |
1.282 8 |
1.312 5 |
|
15/16-20 |
UN |
1.311 1 |
1.303 0 |
1.278 6 |
1.273 9 |
1.251 6 |
1.258 |
1.270 |
1.280 0 |
1.286 1 |
1.312 5 |
|
15/16-28 |
UN |
1.311 3 |
1.304 8 |
1.288 1 |
1.284 0 |
1.268 8 |
1.274 |
1.282 |
1.289 3 |
1.294 7 |
1.312 5 |
|
13/8-6 |
UNC |
1.372 6 |
1.354 4 |
1.264 3 |
1.256 3 |
1.174 1 |
1.195 |
1.225 |
1.266 7 |
1.277 1 |
1.375 0 |
|
13/8-8 |
UN |
1.372 8 |
1.357 8 |
1.291 6 |
1.284 4 |
1.224 0 |
1.240 |
1.265 |
1.293 8 |
1.303 1 |
1.375 0 |
|
13/8-12 |
UNF |
1.373 1 |
1.361 7 |
1.319 0 |
1.312 7 |
1.273 9 |
1.285 |
1.303 |
1.320 9 |
1.329 1 |
1.375 0 |
|
13/8-16 |
UN |
1.373 5 |
1.364 1 |
1.332 9 |
1.327 7 |
1.299 1 |
1.307 |
1.321 |
1.334 4 |
1.341 1 |
1.375 0 |
|
13/8-18 |
UNEF |
1.373 5 |
1.364 8 |
1.337 4 |
1.332 5 |
1.307 3 |
1.315 |
1.328 |
1.338 9 |
1.345 3 |
1.375 0 |
|
13/8-20 |
UN |
1.373 6 |
1.365 5 |
1.341 1 |
1.336 4 |
1.314 1 |
1.321 |
1.332 |
1.342 5 |
1.348 6 |
1.375 0 |
|
13/8-28 |
UN |
1.373 8 |
1.367 3 |
1.350 6 |
1.346 5 |
1.331 3 |
1.336 |
1.345 |
1.351 8 |
1.357 2 |
1.375 0 |
|
17/16-6 |
UN |
1.435 1 |
1.416 9 |
1.326 8 |
1.318 8 |
1.236 6 |
1.257 |
1.288 |
1.329 2 |
1.339 6 |
1.437 5 |
|
17/16-8 |
UN |
1.435 3 |
1.420 3 |
1.354 1 |
1.346 9 |
1.286 5 |
1.302 |
1.327 |
1.356 3 |
1.365 7 |
1.437 5 |
|
17/16-12 |
UN |
1.435 7 |
1.424 3 |
1.381 6 |
1.375 7 |
1.336 5 |
1.347 |
1.365 |
1.383 4 |
1.391 0 |
1.437 5 |
|
17/16-16 |
UN |
1.435 9 |
1.426 5 |
1.395 3 |
1.390 1 |
1.361 5 |
1.370 |
1.384 |
1.396 9 |
1.403 6 |
1.437 5 |
|
17/16-18 |
UNEF |
1.436 0 |
1.427 3 |
1.399 9 |
1.395 0 |
1.369 8 |
1.377 |
1.390 |
1.401 4 |
1.407 8 |
1.437 5 |
|
17/16-20 |
UN |
1.436 1 |
1.428 0 |
1.403 6 |
1.398 9 |
1.376 6 |
1.383 |
1.395 |
1.405 0 |
1.411 2 |
1.437 5 |
|
17/16-28 |
UN |
1.436 2 |
1.429 7 |
1.413 0 |
1.408 8 |
1.393 7 |
1.399 |
1.407 |
1.414 3 |
1.419 7 |
1.437 5 |
|
11/2-6 |
UNC |
1.497 6 |
1.479 4 |
1.389 3 |
1.381 2 |
1.299 1 |
1.320 |
1.350 |
1.391 7 |
1.402 2 |
1.500 0 |
|
11/2-8 |
UN |
1.497 8 |
1.482 8 |
1.416 6 |
1.409 3 |
1.349 0 |
1.365 |
1.390 |
1.418 8 |
1.428 3 |
1.500 0 |
|
11/2-12 |
UNF |
1.498 1 |
1.486 7 |
1.444 0 |
1.437 6 |
1.398 9 |
1.410 |
1.428 |
1.445 9 |
1.454 2 |
1.500 0 |
|
11/2-16 |
UN |
1.498 4 |
1.489 0 |
1.457 8 |
1.452 6 |
1.424 0 |
1.432 |
1.446 |
1.459 4 |
1.466 2 |
1.500 0 |
|
11/2-18 |
UNEF |
1.498 5 |
1.489 8 |
1.462 4 |
1.457 4 |
1.432 3 |
1.440 |
1.453 |
1.463 9 |
1.470 4 |
1.500 0 |
|
11/2-20 |
UN |
1.498 6 |
1.490 5 |
1.466 1 |
1.461 3 |
1.439 1 |
1.446 |
1.457 |
1.467 5 |
1.473 7 |
1.500 0 |
|
11/2-28 |
UN |
1.498 7 |
1.492 2 |
1.475 5 |
1.471 3 |
1.456 2 |
1.461 |
1.470 |
1.476 8 |
1.482 3 |
1.500 0 |
|
19/16-6 |
UN |
1.560 1 |
1.541 9 |
1.451 8 |
1.443 6 |
1.361 6 |
1.382 |
1.413 |
1.454 2 |
1.464 8 |
1.562 5 |
|
19/16-8 |
UN |
1.560 3 |
1.545 3 |
1.479 1 |
1.471 7 |
1.411 5 |
1.427 |
1.452 |
1.481 3 |
1.490 9 |
1.562 5 |
|
19/16-12 |
UN |
1.560 7 |
1.549 3 |
1.506 6 |
1.500 7 |
1.461 5 |
1.472 |
1.490 |
1.508 4 |
1.516 1 |
1.562 5 |
|
19/16-16 |
UN |
1.560 9 |
1.551 5 |
1.520 3 |
1.515 1 |
1.486 5 |
1.495 |
1.509 |
1.521 9 |
1.528 7 |
1.562 5 |
|
19/16-18 |
UNEF |
1.561 0 |
1.552 3 |
1.524 9 |
1.519 9 |
1.494 8 |
1.502 |
1.515 |
1.526 4 |
1.532 9 |
1.562 5 |
|
19/16-20 |
UN |
1.561 1 |
1.553 0 |
1.528 6 |
1.523 8 |
1.501 6 |
1.508 |
1.520 |
1.530 0 |
1.536 2 |
1.562 5 |
|
15/8-6 |
UN |
1.622 5 |
1.604 3 |
1.514 2 |
1.506 0 |
1.424 0 |
1.445 |
1.475 |
1.516 7 |
1.527 4 |
1.625 0 |
|
15/8-8 |
UN |
1.622 8 |
1.607 8 |
1.541 6 |
1.534 2 |
1.474 0 |
1.490 |
1.515 |
1.543 8 |
1.553 5 |
1.625 0 |
|
15/8-12 |
UN |
1.623 2 |
1.611 8 |
1.569 1 |
4.563 2 |
1.524 0 |
1.535 |
1.553 |
1.570 9 |
1.578 6 |
1.625 0 |
|
15/8-16 |
UN |
1.623 4 |
1.614 0 |
1.582 8 |
4.577 5 |
1.549 0 |
1.557 |
1.571 |
1.584 4 |
1.591 2 |
1.625 0 |
|
15/8-18 |
UNEF |
1.623 5 |
1.614 8 |
1.587 4 |
1.582 4 |
1.557 3 |
1.565 |
1.578 |
1.588 9 |
1.595 4 |
1.625 0 |
|
15/8-20 |
UN |
1.623 6 |
1.615 5 |
1.591 1 |
1.586 3 |
1.564 1 |
1.571 |
1.582 |
1.592 5 |
1.598 7 |
1.625 0 |
|
111/16-6 |
UN |
1.685 0 |
1.666 8 |
1.576 7 |
1.568 4 |
1.486 5 |
1.507 |
1.538 |
1.579 2 |
1.590 0 |
1.687 5 |
|
111/16-8 |
UN |
1.685 3 |
1.670 3 |
1.604 1 |
1.596 6 |
1.536 5 |
1.552 |
1.577 |
1.606 3 |
1.616 0 |
1.687 5 |
|
111/16-12 |
UN |
1.685 7 |
1.674 3 |
1.631 6 |
1.625 7 |
1.586 5 |
1.597 |
1.615 |
1.633 4 |
1.641 1 |
1.687 5 |
|
111/16-16 |
UN |
1.685 9 |
1.676 5 |
1.645 3 |
1.640 0 |
1.611 5 |
1.620 |
1.634 |
1.646 9 |
1.653 8 |
1.687 5 |
|
111/16-18 |
UNEF |
1.686 0 |
1.677 3 |
1.649 9 |
1.644 9 |
1.619 8 |
1.627 |
1.640 |
1.651 4 |
1.657 9 |
1.687 5 |
|
111/16-20 |
UN |
1.686 1 |
1.678 0 |
1.653 6 |
1.648 8 |
1.626 6 |
1.633 |
1.645 |
1.655 0 |
1.661 3 |
1.687 5 |
|
13/4-5 |
UNC |
1.747 3 |
1.726 8 |
1.617 4 |
1.608 5 |
1.509 1 |
1.533 |
1.567 |
1.620 1 |
1.631 7 |
1.750 0 |
|
13/4-6 |
UN |
1.747 5 |
1.729 3 |
1.639 2 |
1.630 9 |
1.549 0 |
1.570 |
1.600 |
1.641 7 |
1.652 5 |
1.750 0 |
|
13/4-8 |
UN |
1.747 7 |
1.732 7 |
1.666 5 |
1.659 0 |
1.598 9 |
1.615 |
1.640 |
1.668 8 |
1.678 6 |
1.750 0 |
|
13/4-12 |
UN |
1.748 2 |
1.736 8 |
1.694 1 |
1.688 1 |
1.649 0 |
1.660 |
1.678 |
1.695 9 |
1.703 7 |
1.750 0 |