楔键和键槽的截面尺寸及公差 (摘自GB/T 1563-1979) (mm)
注: ① 在工作图中,轴槽深用t或(d-t)标注,轮毂 深用(d+t1)标注
② (d+t1)及t1表示大端轮毂槽深度
③ 安装时,键的斜面与轮毂槽的斜面必须紧密贴合
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
|
轴和毂极限偏差(D10)
|
轴t
|
毂t1
|
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
|
+0.060
+0.020
|
1.2
|
+0.1
0
|
0.5
|
+0.1
0
|
0.08
|
0.16
|
>8~10
|
3×3
|
3
|
1.8
|
0.9
|
>10~12
|
4×4
|
4
|
+0.078
+0.030
|
2.5
|
1.2
|
>12~17
|
5×5
|
5
|
3.0
|
1.7
|
0.16
|
0.25
|
>17~22
|
6×6
|
6
|
3.5
|
2.2
|
>22~30
|
8×7
|
8
|
+0.098
+0.040
|
4.0
|
+0.2
0
|
2.4
|
+0.2
0
|
>30~38
|
10×8
|
10
|
5.0
|
2.4
|
0.25
|
0.40
|
>38~44
|
12×8
|
12
|
+0.120
+0.050
|
5.0
|
2.4
|
>44~50
|
14×9
|
14
|
5.5
|
2.9
|
>50~58
|
16×10
|
16
|
6.0
|
3.4
|
>58~65
|
18×11
|
18
|
7.0
|
3.4
|
>65~75
|
20×12
|
20
|
+0.149
+0.065
|
7.5
|
3.9
|
0.40
|
0.60
|
>75~85
|
22×14
|
22
|
9.0
|
4.4
|
>85~95
|
25×14
|
25
|
9.0
|
4.4
|
>95~110
|
28×16
|
28
|
10.0
|
5.4
|
>110~130
|
32×18
|
32
|
+0.180
+0.080
|
11.0
|
6.4
|
>130~150
|
36×20
|
36
|
12.0
|
+0.3
0
|
7.1
|
+0.3
0
|
0.70
|
1.0
|
>150~170
|
40×22
|
40
|
13.0
|
8.1
|
>170~200
|
45×25
|
45
|
15.0
|
9.1
|
>200~230
|
50×28
|
50
|
17.0
|
10.1
|
>230~260
|
56×32
|
56
|
+0.220
+0.100
|
20.0
|
11.1
|
1.2
|
1.6
|
>260~290
|
63×32
|
63
|
20.0
|
11.1
|
>290~330
|
70×36
|
70
|
22.0
|
13.1
|
>330~380
|
80×40
|
80
|
25.0
|
14.1
|
2.0
|
2.5
|
>380~440
|
90×45
|
90
|
+0.260
+0.120
|
28.0
|
16.1
|
>440~500
|
100×50
|
100
|
31.0
|
18.1
|
注: (d-t) 和 (d+t1)两个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。