标准直径 带齿轮数z1，2 MXL XXL XL L H XH XXH d 10 11 12 13 14 15 16 17 18 19 20 22 6.47 7.11 7.76 8.41 9.06 9.70 da d da d 16.17 da 15.66 17.28 18.90 20.51 22.13 23.75 25.36 26.98 28.60 30.22 31.83 33.45 35.07 36.68 38.30 39.92 41.53 43.15 d 36.38 39.41 42.45 45.48 48.51 51.54 54.57 57.61 60.64 63.67 66.70 69.73 72.77 75.80 78.83 81.86 da 35.62 38.65 41.69 44.72 47.75 50.78 53.81 56.84 59.88 62.91 65.94 68.97 72.00 d 56.60 60.64 64.68 68.72 72.77 76.81 80.85 84.89 88.94 92.98 97.02 da 55.23 59.27 63.31 67.35 d da d da 178.86 188.97 199.08 209.18 219.29 229.40 239.50 249.61 259.72 269.82 5.96 10.11 9.60 6.61 11.12 10.61 17.79 7.25 12.13 11.62 19.40 7.90 13.14 12.63 21.02 8.55 14.15 13.64 22.64 9.19 15.16 14.65 24.26 10.35 9.84 16.17 15.66 25.87 11.00 10.49 17.18 16.67 27.49 11.64 11.13 18.19 17.68 29.11 12.29 11.78 19.20 18.69 30.72 12.94 12.43 20.21 19.70 32.34 14.23 13.72 22.23 21.73 35.57 71.39 127.34 124.55 181.91 75.44 134.41 131.62 192.02 79.48 141.49 138.69 202.13 83.52 148.56 145.77 212.33 87.56 155.64 152.84 222.34 91.61 162.71 159.92 232.45 95.65 169.79 166.99 242.55 （21） 13.58 13.07 21.22 20.72 33.96 （23） 14.88 14.37 23.24 22.74 37.19 （24） 15.52 15.02 24.26 23.75 38.81 25 16.17 15.66 25.27 24.76 40.43 （26） 16.82 16.31 26.28 25.77 42.04 （27） 17.46 16.96 27.29 26.78 43.66 75.04 101.06 99.69 176.86 174.07 252.66 78.07 105.11 103.73 183.94 181.14 262.76 81.10 109.15 107.78 191.01 188.22 272.87 28 32 36 40 48 60 72 84 96 120 156
18.11 17.60 28.30 27.79 45.28 20.70 20.19 32.34 31.83 51.74 23.29 22.78 36.38 35.87 58.21 25.37 25.36 40.43 39.92 64.68 31.05 30.54 48.51 48.00 77.62 38.81 38.30 60.64 60.13 97.02 44.77 48.00 51.24 84.89 90.96 97.02 84.13 113.19 111.82 198.08 195.29 282.98 90.20 121.28 119.90 212.23 209.44 303.19 96.26 129.36 127.99 226.38 223.59 323.4 279.93 300.14 320.35 360.78 402.21 482.06 603.33 724.61 845.88 967.16 （30） 19.40 18.90 30.32 29.81 48.51 57.70 109.15 108.39 145.53 144.16 254.68 251.89 363.83 64.17 121.28 120.51 161.70 160.33 282.98 280.18 404.25 77.11 145.53 144.77 194.04 192.67 339.57 336.78 485.10 96.51 181.91 181.15 242.55 241.18 424.47 421.67 606.38 254.68 253.92 339.57 338.20 594.25 591.46 848.93 291.06 290.3 388.08 386.71 679.15 676.35 970.21 630.64 629.26 46.57 46.06 72.77 72.26 116.43 115.92 218.3 217.53 291.06 289.69 509.36 506.57 727.66 363.83 363.07 485.10 483.73 848.93 846.14 1212.76 1209.71