Originally posted on 2019年12月14日 @ 上午9:56

注:在工作图中,轴槽深用t或(d-t)标注,轮毂槽深用(d+t1)标注。
轴 | 键 | 键 槽 | |||||||||||
公称直径 d |
公称尺寸 b×h |
宽 度 b | 深 度 | 半径r | |||||||||
公称尺寸 b |
极 限 偏 差 | 轴t | 毂t1 | ||||||||||
较松键联接 | 一般键联接 | 较紧键联接 | |||||||||||
轴(H9) | 毂(D10) | 轴(N9) | 毂(Js9) | 轴和毂(P9) |
公称 尺寸 |
极限 偏差 |
公称 尺寸 |
极限 偏差 |
最小 | 最大 | |||
自6~8 | 2×2 | 2 |
+0.025 0 |
+0.06 +0.02 |
-0.004 -0.029 |
±0.0125 |
-0.006 -0.031 |
1.2 |
+0.1 0 |
1 |
+0.1 0 |
0.08 | 0.16 |
>8~10 | 3×3 | 3 | 1.8 | 1.4 | |||||||||
>10~12 | 4×4 | 4 |
+0.03 0 |
+0.078 +0.03 |
0 -0.036 |
±0.015 |
-0.012 -0.042 |
2.5 | 1.8 | ||||
>12~17 | 5×5 | 5 | 3 | 2.3 | 0.16 | 0.25 | |||||||
>17~22 | 6×6 | 6 | 3.5 | 2.8 | |||||||||
>22~30 | 8×7 | 8 |
+0.036 0 |
+0.098 +0.004 |
0 -0.036 |
±0.018 |
-0.015 -0.051 |
4 |
+0.2 0 |
3.3 |
+0.2 0 |
||
>30~38 | 10×8 | 10 | 5 | 3.3 | 0.25 | 0.4 | |||||||
>38~44 | 12×8 | 12 |
+0.043 0 |
+0.12 +0.05 |
0 -0.043 |
±0.0215 |
-0.018 -0.061 |
5 | 3.3 | ||||
>44~50 | 14×9 | 14 | 5.5 | 3.8 | |||||||||
>50~58 | 16×10 | 16 | 6 | 4.3 | |||||||||
>58~65 | 18×11 | 18 | 7 | 4.4 | |||||||||
>65~75 | 20×12 | 20 |
+0.052 0 |
+0.149 +0.065 |
0 -0.052 |
±0.026 |
-0.022 -0.074 |
7.5 | 4.9 | 0.4 | 0.6 | ||
>75~85 | 22×14 | 22 | 9 | 5.4 | |||||||||
>85~95 | 25×14 | 25 | 9 | 5.4 | |||||||||
>95~110 | 28×16 | 28 | 10 | 6.4 | |||||||||
>110~130 | 32×18 | 32 |
+0.062 0 |
+0.18 +0.08 |
0 -0.062 |
±0.031 |
-0.026 -0.088 |
11 | 7.4 | ||||
>130~150 | 36×20 | 36 | 12 |
+0.3 0 |
8.4 |
+0.3 0 |
0.7 | 1 | |||||
>150~170 | 40×22 | 40 | 13 | 9.4 | |||||||||
>170~200 | 45×25 | 45 | 15 | 10.4 | |||||||||
>200~230 | 50×28 | 50 | 17 | 11.4 | |||||||||
>230~260 | 56×32 | 56 |
+0.074 0 |
+0.22 0.1 |
0 -0.074 |
±0.037 |
-0.032 -0.106 |
20 | 12.4 | 1.2 | 1.6 | ||
>260~290 | 63×32 | 63 | 20 | 12.4 | |||||||||
>290~330 | 70×36 | 70 | 22 | 14.4 | |||||||||
>330~380 | 80×40 | 80 | 25 | 15.4 | 2 | 2.5 | |||||||
>380~440 | 90×45 | 90 |
+0.087 0 |
+0.26 0.12 |
0 -0.087 |
±0.0435 |
-0.037 -0.124 |
28 | 17.4 | ||||
>440~500 | 100×50 | 100 | 31 | 19.5 |
注: (d-t)和(d+t1)两组组合尺寸的极限偏差按相应的t和t1的极限偏差选取,但(d-t)极限偏差值应取负号。