薄型平键型式尺寸(摘自GB/T1567-1979) (mm)
标记示例:
圆头薄型平键 (A型) b=16mm、h=7mm、L=100mm 标记: 键 16×7×100 GB/T 1567-1979
同尺寸(B型)、(C型) 标记: 键 B16×7×100 GB/T 1567-1979、标记: 键 C16×7×100 GB/T 1567-1979
|
b
|
公称
尺寸
|
5
|
6
|
8
|
10
|
12
|
14
|
16
|
18
|
20
|
22
|
25
|
28
|
32
|
36
|
|
极限
偏差
(h9)
|
0
-0.030
|
0
-0.036
|
0
-0.043
|
0
-0.052
|
0
-0.062
|
|
h
|
公称
尺寸
|
3
|
4
|
5
|
6
|
6
|
6
|
7
|
7
|
8
|
9
|
9
|
10
|
11
|
12
|
|
极限
偏差
(h11)
|
0
-0.060
|
0
-0.075
|
0
-0.090
|
0
-0.110
|
|
C或r
|
0.25～0.40
|
0.40～0.60
|
0.60～0.80
|
1.0～1.2
|
注: 键长L系列:6,8,10,12,14,16,18,20,22,25,28,32,36,40,45,50,56,63,70,80,90,100,110,125,140,160,180,200,220, 250,280,320, 360,400,500,公差带为h14.薄型平键和键槽的截面尺寸及公差(摘自GB/T1566-1979) (mm)
|
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
|
极限偏差
|
轴t
|
毂t1
|
|
|
较松键联接
|
一般键联接
|
较紧"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
|
|
|
12～17
|
5×3
|
5
|
0
+0.030
|
+0.078
+0.030
|
0
-0.030
|
±0.015
|
-0.012
-0.042
|
1.8
|
+0.1
0
|
1.4
|
+0.1
0
|
0.16
|
0.25
|
|
|
>17～22
|
6×4
|
6
|
2.5
|
1.8
|
|
|
|
|
>22～30
|
8×5
|
8
|
0
+0.036
|
+0.098
+0.040
|
0
-0.036
|
±0.018
|
-0.015
-0.051
|
3
|
2.3
|
|
|
>30～38
|
10×6
|
10
|
3.5
|
2.8
|
0.25
|
0.40
|
|
|
>38～44
|
12×6
|
12
|
+0.043
0
|
+0.120
+0.050
|
0
-0.043
|
±0.0215
|
-0.018
-0.061
|
3.5
|
2.8
|
|
|
>44～50
|
14×6
|
14
|
3.5
|
2.8
|
|
|
>50～58
|
16×7
|
16
|
4
|
+0.2
0
|
3.3
|
+0.2
0
|
|
|
>58～65
|
18×7
|
18
|
4
|
3.3
|
|
|
>65～75
|
20×8
|
20
|
+0.052
0
|
+0.149
+0.065
|
0
-0.052
|
±0.026
|
-0.022
-0.074
|
5
|
3.3
|
0.40
|
0.60
|
|
|
>75～85
|
22×9
|
22
|
5.5
|
3.8
|
|
|
>85～95
|
25×9
|
25
|
5.5
|
3.8
|
|
|
>95～110
|
28×10
|
28
|
6
|
4.3
|
|
|
>110～130
|
32×11
|
32
|
+0.062
0
|
+0.180
+0.080
|
0
-0.062
|
±0.031
|
-0.026
-0.088
|
7
|
4.4
|
|
|
>130～150
|
36×12
|
36
|
7.5
|
4.9
|
0.70
|
1.0
|
|
注: (d-t)和(d+t1)两个组合尺寸的极限偏差按相应的t和t1极限偏差选取,但(d-t) 极限偏差值应取负号。
