开口销(GB/T 91—2000) mm | ||||||||||||
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标记示例: 公称规格为5mm、公称长度l=50mm、材料为Q215或Q235、不经表面处理的开口销的标记: 销 GB/T 91 5×50 | ||||||||||||
公称规格① | d | a | b | c | 适用的直径② | l的范围 | ||||||
螺栓 | U形销 | |||||||||||
max | min | max | min | ≈ | max | min | > | ≤ | > | ≤ | ||
0.6 | 0.5 | 0.4 | 1.6 | 0.8 | 2 | 1.0 | 0.9 | — | 2.5 | — | 2 | 4~12 |
0.8 | 0.7 | 0.6 | 1.6 | 0.8 | 2.4 | 1.4 | 1.2 | 2.5 | 3.5 | 2 | 3 | 5~16 |
1 | 0.9 | 0.8 | 1.6 | 0.8 | 3 | 1.8 | 1.6 | 3.5 | 4.5 | 3 | 4 | 6~20 |
1.2 | 1.0 | 0.9 | 2.50 | 1.25 | 3 | 2.0 | 1.7 | 4.5 | 5.5 | 4 | 5 | 8~25 |
1.6 | 1.4 | 1.3 | 2.50 | 1.25 | 3.2 | 2.8 | 2.4 | 5.5 | 7 | 5 | 6 | 8~32 |
2 | 1.8 | 1.7 | 2.50 | 1.25 | 4 | 3.6 | 3.2 | 7 | 9 | 6 | 8 | 10~40 |
2.5 | 2.3 | 2.1 | 2.50 | 1.25 | 5 | 4.6 | 4.0 | 9 | 11 | 8 | 9 | 12~50 |
3.2 | 2.9 | 2.7 | 3.2 | 1.6 | 6.4 | 5.8 | 5.1 | 11 | 14 | 9 | 12 | 14~63 |
4 | 3.7 | 3.5 | 4 | 2 | 8 | 7.4 | 6.5 | 14 | 20 | 12 | 17 | 18~80 |
5 | 4.6 | 4.4 | 4 | 2 | 10 | 9.2 | 8.0 | 20 | 27 | 17 | 23 | 22~100 |
6.3 | 5.9 | 5.7 | 4 | 2 | 12.6 | 11.8 | 10.3 | 27 | 39 | 23 | 29 | 32~125 |
8 | 7.5 | 7.3 | 4 | 2 | 16 | 15.0 | 13.1 | 39 | 56 | 29 | 44 | 40~160 |
10 | 9.5 | 9.3 | 6.30 | 3.15 | 20 | 19.0 | 16.6 | 56 | 80 | 44 | 69 | 45~200 |
13 | 12.4 | 12.1 | 6.30 | 3.15 | 26 | 24.8 | 21.7 | 80 | 120 | 69 | 110 | 71~250 |
16 | 15.4 | 15.1 | 6.30 | 3.15 | 32 | 30.8 | 27.0 | 120 | 170 | 110 | 160 | 112~280 |
20 | 19.3 | 19.0 | 6.30 | 3.15 | 40 | 38.5 | 33.8 | 170 | — | 160 | — | 160~280 |
注:① 公称规格等于开口销孔的直径。对销孔直径推荐的公差为: 公称规格≤1.2:H13; 公称规格>1.2:H14 根据供需双方协议,允许采用公称规格为3、6和12mm的开口销。 ② 用于铁道和在U形销中开口销承受交变横向力的场合,推荐使用的开口销规格应较本表规定的加大一档。 | ||||||||||||
公称长度l 的商品规格系列: mm | |||||||||||||||||
公称 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 25 | 28 | 32 | 36 | 40 | 45 |
min | 3.5 | 4.5 | 5.5 | 7.5 | 9.5 | 11 | 13 | 15 | 17 | 19 | 21 | 24 | 27 | 30.5 | 34.5 | 38.5 | 43.5 |
max | 4.5 | 5.5 | 6.5 | 8.5 | 10.5 | 13 | 15 | 17 | 19 | 21 | 23 | 26 | 29 | 33.5 | 37.5 | 41.5 | 46.6 |
公称 | 50 | 56 | 63 | 71 | 80 | 90 | 100 | 112 | 125 | 140 | 160 | 180 | 200 | 224 | 250 | 280 | |
min | 48.5 | 54.5 | 61.5 | 69.5 | 78.5 | 88 | 98 | 110 | 123 | 138 | 158 | 178 | 198 | 222 | 248 | 278 | |
max | 51.5 | 57.5 | 64.5 | 72.5 | 81.5 | 92 | 102 | 114 | 127 | 142 | 162 | 182 | 202 | 226 | 252 | 282 | |
技 术 条 件 | ||||
材料 | 碳素钢 | 铜合金 | 不锈钢 | |
Q215、Q235 | H63 | 1Cr17Ni7、0Cr18Ni9Ti | ||
工作质量 | ① 眼圈应尽可能制成圆形; ② 开口销两脚的横截面应为圆形,但允许开口销两脚平面与圆周交接处有半径r=(0.05~0.1)dmax的圆角; ③ 开口销两脚的间隙和两脚的错移量应不大于开口销公称规格与dmax之差值; ④ 开口销允许制成开口的(α——两脚内平面的夹角);公称规格≤1.6mm,α≤8°;2~6.3mm,α≤4°;≥8mm,α≤2° | |||
表面缺陷 | 不允许有毛刺、不规则的和有害的缺陷 | |||
表面处理 | 钢 | 铜、不锈钢 | ||
不经处理;镀锌钝化、磷化 | 简单处理 | |||
其他表面镀层或表面处理应由供需双方协议 | ||||
质量 kg | ||||||||||||||||
公称规格/mm | 0.6 | 0.8 | 1 | 1.2 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6.3 | 8 | 10 | 13 | 16 | 20 |
公称长度/mm | 每1000件钢制品的质量 ≈ | |||||||||||||||
4 | 0.005 | | | | | | | | | | | | | | | |
5 | 0.006 | 0.013 | | | | | | | | | | | | | | |
6 | 0.007 | 0.015 | 0.027 | | | | | | | | | | | | | |
8 | 0.009 | 0.020 | 0.035 | 0.044 | 0.085 | | | | | | | | | | | |
10 | 0.011 | 0.024 | 0.043 | 0.054 | 0.106 | 0.176 | | | | | | | | | | |
12 | 0.013 | 0.028 | 0.050 | 0.064 | 0.127 | 0.211 | 0.318 | | | | | | | | | |
14 | | 0.033 | 0.058 | 0.074 | 0.147 | 0.246 | 0.372 | 0.613 | | | | | | | | |
16 | | 0.037 | 0.066 | 0.084 | 0.168 | 0.282 | 0.426 | 0.702 | | | | | | | | |
18 | | | 0.074 | 0.094 | 0.188 | 0.317 | 0.480 | 0.791 | 1.31 | | | | | | | |
20 | | | 0.082 | 0.104 | 0.209 | 0.352 | 0.534 | 0.880 | 1.46 | | | | | | | |
22 | | | | 0.113 | 0.230 | 0.387 | 0.587 | 0.969 | 1.61 | 2.51 | | | | | | |
25 | | | | 0.128 | 0.261 | 0.440 | 0.668 | 1.10 | 1.83 | 2.87 | | | | | | |
28 | | | | | 0.292 | 0.493 | 0.749 | 1.24 | 2.06 | 3.22 | | | | | | |
32 | | | | | 0.333 | 0.564 | 0.856 | 1.41 | 2.36 | 3.69 | 6.05 | | | | | |
36 | | | | | | 0.634 | 0.964 | 1.59 | 2.66 | 4.17 | 6.84 | | | | | |
40 | | | | | | 0.705 | 1.07 | 1.77 | 2.96 | 4.64 | 7.64 | 12.29 | | | | |
45 | | | | | | | 1.21 | 1.99 | 3.33 | 5.23 | 8.63 | 13.91 | 22.30 | | | |
50 | | | | | | | 1.34 | 2.21 | 3.70 | 5.82 | 9.62 | 15.54 | 24.94 | | | |
56 | | | | | | | | 2.48 | 4.15 | 6.53 | 10.81 | 17.49 | 28.10 | | | |
63 | | | | | | | | 2.79 | 4.67 | 7.35 | 12.19 | 19.77 | 31.80 | | | |
71 | | | | | | | | | 5.27 | 8.30 | 13.78 | 22.37 | 36.02 | 59.73 | | |
80 | | | | | | | | | 5.94 | 9.36 | 15.56 | 25.29 | 40.77 | 67.77 | | |
90 | | | | | | | | | | 10.54 | 17.55 | 28.54 | 46.04 | 76.70 | | |
100 | | | | | | | | | | 11.72 | 19.53 | 31.79 | 51.32 | 85.63 | | |
112 | | | | | | | | | | | 21.91 | 35.69 | 57.65 | 96.35 | 147.7 | |
125 | | | | | | | | | | | 24.48 | 39.92 | 64.51 | 108.0 | 165.8 | |
140 | | | | | | | | | | | | 44.80 | 72.42 | 121.4 | 186.6 | |
160 | | | | | | | | | | | | 51.30 | 82.97 | 139.2 | 214.4 | 335.2 |
180 | | | | | | | | | | | | | 93.53 | 157.1 | 242.3 | 379.2 |
200 | | | | | | | | | | | | | 104.1 | 174.9 | 270.1 | 423.2 |
224 | | | | | | | | | | | | | | 196.4 | 303.5 | 476.1 |
250 | | | | | | | | | | | | | | 219.6 | 339.6 | 533.3 |
280 | | | | | | | | | | | | | | | 381.3 | 599.4 |

