问题：4分链轮规格

这么长时间了怎么没人回答？所谓4分链轮应该是指链节距12.7mm的链轮。4分是指4/8英寸。但要注意：4分的链轮也有不同的规格，实际应用中须根据具体的链条型号和参数设计应用。

优质解答你说的4分应该是指链轮的节距P.P=12.7mmGB/T1243中给出了链轮外径da、齿数Z和链轮节距p的关系.公式中,dr是链条的滚子直径.对于4分链条,不同链号的滚子直径有差别,有7.75mm,有7.77mm,有7.92mm,还有一种是8.51mm.由上述这些公式可以看出,知道外径和节距求齿数是不精确的,因为有一个最大外径和最小外径的变动量,设计时根据具体工作条件选取.建议你按上述公式带入一下,然后计算.作业帮用户2016-12-08

链轮尺寸表 链滚子直 径 dr 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 11.91 节距 P 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 19.050 齿厚 b 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 11.70 齿数 Z 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 半节距角 ° A 15.000 13.846 12.857 12.000 11.250 10.588 10.000 9.474 9.000 8.571 8.182 7.826 7.500 7.200 6.923 6.667 6.429 6.207 6.000 5.806 5.625 5.455 5.294 5.143 5.000 4.865 4.737 4.615 4.500 4.390 4.286 4.186 4.091 4.000 sinA 0.26 0.2393 0.2225 0.2079 0.1951 0.1837 0.1736 0.1646 0.1564 0.1490 0.1423 0.1362 0.1305 0.1253 0.1205 0.1161 0.1120 0.1081 0.1045 0.1012 0.0980 0.0951 0.0923 0.0896 0.0872 0.0848 0.0826 0.0805 0.0785 0.0765 0.0747 0.0730 0.0713 0.0698 ctgA 3.73 4.0572 4.3814 4.7046 5.0273 5.3497 5.6713 5.9925 6.3138 6.6349 6.9550 7.2756 7.5958 7.9158 8.2359 8.5552 8.8746 9.1948 9.5144 9.8346 10.1532 10.4720 10.7927 11.1108 11.4302 11.7489 12.0678 12.3884 12.7062 13.0259 13.3432 13.6632 13.9817 14.3008 ctgA 3.7321 4.0572 4.3813 4.7046 5.0273 5.3497 5.6713 5.9925 6.3138 6.6349 6.9550 7.2756 7.5958 7.9158 8.2359 8.5552 8.8746 9.1948 9.5144 9.8346 10.1532 10.4720 10.7927 11.1108 11.4302 11.7489 12.0678 12.3884 12.7062 13.0259 13.34 13.66 13.9817 14.3008 节圆 d" 73.60 79.60 85.61 91.63 97.65 103.68 109.70 115.74 121.78 127.82 133.86 139.90 145.95 152.00 158.05 164.09 170.13 176.19 182.25 188.32 194.35 200.40 206.48 212.52 218.58 224.63 230.68 236.77 242.80 248.87 254.90 260.98 267.03 273.09  根圆 df 61.69 67.69 73.70 79.72 85.74 91.77 97.79 103.83 109.87 115.91 121.95 127.99 134.04 140.09 146.14 152.18 158.22 164.28 170.34 176.41 182.44 188.49 194.57 200.61 206.67 212.72 218.77 224.86 230.89 236.96 242.99 249.07 255.12 261.18  顶圆 da 81.38 87.58 93.75 99.91 106.06 112.20 118.32 124.44 130.56 136.68 142.78 148.89 154.99 161.08 167.18 173.26 179.35 185.45 191.54 197.64 203.71 209.78 215.89 221.95 228.03 234.10 240.18 246.29 252.34 258.43 264.47 270.57 276.64 282.72

链传动被广泛应用于化工、纺织机械、食品加工、仪表仪器、石油等行业的机械传动等，在机械设计中，标准的图纸如何画的？我们先看下机械设计手册中的标准图纸。以下是截图：1、了解参数的含义1P了解下滚子链的标记方法下面的链号08A,我们经常说的4分链轮相对应，以此类推16A就是1寸。其实是指的是节距P，英寸单位表示节距。1  in=25.4mmp=25.4X链号/1608A节距p=25.4X8/16=12.7mm2dr   b1链号越大，链条越粗，强度就越强。这是定性判断，如何选择链条，这个还要通过计算的，这里不讲。链条是标准化了，滚子直径dr,内链节内宽b1,这些参数可以查表。

链条规格型号_冶金/矿山/地质_工程科技_专业资料。链号GBchainNO.08A-108A-208A-310A-110A-210A-312A-112A-212A-316A-116A-216A-320A-120A-2中医养生与保健中医养生知识大全女人养生之道

链轮尺寸表链滚子直径 sinActgA ctgA 节圆 dfda 11.91 19.050 11.70 12 15.000 0.26 3.73 3.7321 73.60 61.69 81.38 11.91 19.050 11.70 13 13.846 0.2393 4.0572 4.0572 79.60 67.69 87.58 11.91 19.050 11.70 14 12.857 0.2225 4.3814 4.3813 85.61 73.70 93.75 11.91 19.050 11.70 15 12.000 0.2079 4.7046 4.7046 91.63 79.72 99.91 11.91 19.050 11.70 16 11.250 0.1951 5.0273 5.0273 97.65 85.74 106.06 11.91 19.050 11.70 17 10.588 0.1837 5.3497 5.3497 103.68 91.77 112.20 11.91 19.050 11.70 18 10.000 0.1736 5.6713 5.6713 109.70 97.79 118.32 11.91 19.050 11.70 19 9.474 0.1646 5.9925 5.9925 115.74 103.83 124.44 11.91 19.050 11.70 20 9.000 0.1564 6.3138 6.3138 121.78 109.87 130.56 11.91 19.050 11.70 21 8.571 0.1490 6.6349 6.6349 127.82 115.91 136.68 11.91 19.050 11.70 22 8.182 0.1423 6.9550 6.9550 133.86 121.95 142.78 11.91 19.050 11.70 23 7.826 0.1362 7.2756 7.2756 139.90 127.99 148.89 11.91 19.050 11.70 24 7.500 0.1305 7.5958 7.5958 145.95 134.04 154.99 11.91 19.050 11.70 25 7.200 0.1253 7.9158 7.9158 152.00 140.09 161.08 11.91 19.050 11.70 26 6.923 0.1205 8.2359 8.2359 158.05 146.14 167.18 11.91 19.050 11.70 27 6.667 0.1161 8.5552 8.5552 164.09 152.18 173.26 11.91 19.050 11.70 28 6.429 0.1120 8.8746 8.8746 170.13 158.22 179.35 11.91 19.050 11.70 29 6.207 0.1081 9.1948 9.1948 176.19 164.28 185.45 11.91 19.050 11.70 30 6.000 0.1045 9.5144 9.5144 182.25 170.34 191.54 11.91 19.050 11.70 31 5.806 0.1012 9.8346 9.8346 188.32 176.41 197.64 11.91 19.050 11.70 32 5.625 0.0980 10.1532 10.1532 194.35 182.44 203.71 11.91 19.050 11.70 33 5.455 0.0951 10.4720 10.4720 200.40 188.49 209.78 11.91 19.050 11.70 34 5.294 0.0923 10.7927 10.7927 206.48 194.57 215.89 11.91 19.050 11.70 35 5.143 0.0896 11.1108 11.1108 212.52 200.61 221.95 11.91 19.050 11.70 36 5.000 0.0872 11.4302 11.4302 218.58 206.67 228.03 11.91 19.050 11.70 37 4.865 0.0848 11.7489 11.7489 224.63 212.72 234.10 11.91 19.050 11.70 38 4.737 0.0826 12.0678 12.0678 230.68 218.77 240.18 11.91 19.050 11.70 39 4.615 0.0805 12.3884 12.3884 236.77 224.86 246.29 半节距角 11.91 19.050 11.70 40 4.500 0.0785 12.7062 12.7062 242.80 230.89 252.34 11.91 19.050 11.70 41 4.390 0.0765 13.0259 13.0259 248.87 236.96 258.43 11.91 19.050 11.70 42 4.286 0.0747 13.3432 13.34 254.90 242.99 264.47 11.91 19.050 11.70 43 4.186 0.0730 13.6632 13.66 260.98 249.07 270.57 11.91 19.050 11.70 44 4.091 0.0713 13.9817 13.9817 267.03 255.12 276.64 11.91 19.050 11.70 45 4.000 0.0698 14.3008 14.3008 273.09 261.18 282.72