| 常数量 | 设定量 | 中间
计算量 | d | da | df | dg | bf1 | ba | rx | ra | 链
号 | 节
距
p | 节
内
宽
b1 | 滚子
直径d1 | 齿数
z | 中间量
sin180/z | 中间量
ctg180/z | 分度圆
直径d | 齿顶圆
直径da | 齿根圆
直径df | 齿侧
凸缘
直径
dg≤ | 齿宽
bf1 | 倒角
宽
ba | 倒角
半径
rx≥ | 凸缘
圆角
ra | | 08A | 12.7 | 7.85 | 7.95 | 28 | 0.111964474 | 8.875245628 | 113.4288362 | 119.5736195 | 105.4788362 | 99.21561947 | 7.3005 | 1.524 | 12.7 | 0.508 | | 10A | 15.875 | 9.4 | 10.16 | 25 | 0.125333231 | 7.915815225 | 126.662337 | 134.2360667 | 116.502337 | 108.9885667 | 8.93 | 1.905 | 15.875 | 0.635 | | 12A | 19.05 | 12.57 | 11.91 | 21 | 0.149042264 | 6.634566615 | 127.8160941 | 136.675494 | 115.9060941 | 106.538494 | 11.9415 | 2.286 | 19.05 | 0.762 | | 16A | 25.4 | 15.75 | 15.88 | 19 | 0.164594587 | 5.992671563 | 154.3185617 | 165.9298577 | 138.4385617 | 126.0138577 | 14.9625 | 3.048 | 25.4 | 1.016 | | 20A | 31.75 | 18.9 | 19.05 | 19 | 0.164594587 | 5.992671563 | 192.8982021 | 207.4123221 | 173.8482021 | 157.7173221 | 17.955 | 3.81 | 31.75 | 1.27 | | 24A | 38.1 | 25.22 | 22.23 | 25 | 0.125333231 | 7.915815225 | 303.9896088 | 322.1665601 | 281.7596088 | 262.6925601 | 23.959 | 4.572 | 38.1 | 1.524 | | 28A | 44.45 | 25.22 | 25.4 | 28 | 0.111964474 | 8.875245628 | 397.0009266 | 418.5076681 | 371.6009266 | 349.2546681 | 23.959 | 5.334 | 44.45 | 1.778 |
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