链轮基准尺寸

鏈輪的基準尺寸如下。(單位mm)

節距徑‧外徑

節距徑，外徑，可利用左欄的計算方式求得。但是，相對於下表的鏈條節距為1時各齒，數之節距徑，直徑之值乘上鏈條節距的話，就可計算出節距徑，外徑。

〈使用例〉CHC100鏈條(節距31.75mm). 求齒數18T鏈輪之鏈條節距徑DP' 外徑Do來說明。

‧節距徑 Dp=5.7588X節距31.75=182.8419=182.84

(小數點取2位，以下四捨五入)

‧外徑 Dp=6.271X節距31.75=199.10125=199

(小數點取2位，以下四捨五入)

結圓直徑 外徑 結圓直徑 外徑 齒數 齒數 DP Do DP Do 11 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 3.5495 4.006 3.8637 4.332 4.7186 4.657 4.4940 4.981 4.8097 5.305 5.1258 5.627 5.4422 5.950 5.7588 6.271 6.0755 6.593 6.3925 6.914 6.7095 7.235 7.0267 7.555 7.3439 7.876 7.6613 8.196 7.9787 8.516 8.2962 8.836 8.6138 9.156 8.9314 9.475 9.2491 9.795 9.5668 10.11 4 9.8845 10.2023 10.4310.5201 4 10.8380 10.7511.1558 3 11.0711.4737 2 11.7916 11.3912.1086 2 12.4275 11.7112.7455 1 13.0635 12.0313.3815 0 13.6995 12.3414.0175 9 66 21.0164 21.593 67 21.3349 21.911 68 21.6528 22.230 69 21.9710 22.548 70 22.2892 22.867 71 22.6074 23.185 72 22.9256 23.50473 23.2438 74 23.562023.822 75 24.141 23.880224.459 76 24.778 77 78 24.1984 25.096 79 24.5167 25.415 80 24.8349 25.733 25.1531 26.052 81 25.4713 26.370 82 83 25.7896 26.689 84 26.1078 27.007 85 26.4261 27.326 26.7443 27.644 86 27.0625 27.963 87 88 27.3807 28.281 89 27.6990 28.599 90 28.0172 28.918 28.3355 29.236 91 28.6537 29.290 92 93 28.9720 29.873 94 29.2902 30.192 95 29.6085 30.510 29.9267 30.828 96 30.2449 31.147 97 98 30.5632 31.465 99 30.8815 31.784 31.1997 32.102 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 14.3356 12.66 8 14.6536 12.9814.9717 7 15.2898 13.3015.6079 6 15.9260 13.6216.2441 5 16.5622 13.9416.8803 4 17.1984 14.2617.5166 3 14.5817.8347 2 18.1529 14.9018.4710 1 18.7892 19.1073 15.21 9 19.4255 15.5329.7437 8 20.0618 15.8520.3800 7 20.698216.17 6 16.495 16.813 17.132 17.451 17.769 18.088 18.407 18.725 19.044 19.363 100 31.5180 32.421 31.8362 101 32.739 102 32.1545 33.057 103 32.4727 33.376 104 32.7910 33.694 105 33.1093 34.013 33.4275 34.331 106 107 33.7458 34.694 108 34.0641 34.968 109 34.3823 35.286 110 34.7006 35.605 35.0188 35.923 111 112 35.3371 36.241 113 35.6554 26.560 114 35.9737 26.878 115 36.2919 37.197 26.6102 37.515 116 117 36.9285 37.833 118 37.2467 38.152 119 37.5650 38.470 120 37.8833 38.788 38.2016 19.681 20.000 20.318 20.637 20.955 21.274