开口挡圈 (摘自GB 896-86)
孔径d=1.2~15mm的开口挡圈。
标记示例:
孔径d=6mm、材料为65Mn、热处理硬度HRC47~54、经表面氧化处理的开口挡圈的标记:
挡圈 GB 896 6
孔径d=1.2~15mm的开口挡圈:
挡圈
|
沟槽(推荐)
|
轴径
d0
|
公称直径d
|
B
|
S
|
D≤
|
d2
|
m
|
n
≥
|
基本
尺寸
|
极限
偏差
|
基本
尺寸
|
极限
偏差
|
基本
尺寸
|
极限
偏差
|
基本
尺寸
|
极限
偏差
|
基本
尺寸
|
极限
偏差
|
1.2
|
0
-0.14
|
0.9
|
±0.08
|
0.3
|
+0.03
-0.06
|
3
|
1.2
|
+0.06
0
|
0.4
|
+0.14
0
|
1
|
>1.5~2
|
1.5
|
0
-0.14
|
1.2
|
±0.125
|
0.4
|
+0.03
-0.06
|
4
|
1.5
|
+0.06
0
|
0.5
|
+0.14
0
|
1
|
>2~2.5
|
2
|
0
-0.14
|
1.7
|
±0.125
|
0.4
|
+0.03
-0.06
|
5
|
2
|
+0.06
0
|
0.5
|
+0.14
0
|
1.2
|
>2.5~3
|
2.5
|
0
-0.14
|
2.2
|
±0.125
|
0.4
|
+0.03
-0.06
|
6
|
2.5
|
+0.06
0
|
0.5
|
+0.14
0
|
1.2
|
>3~3.5
|
3
|
0
-0.14
|
2.5
|
±0.125
|
0.6
|
+0.04
-0.07
|
7
|
3
|
+0.06
0
|
0.7
|
+0.14
0
|
1.2
|
>3.5~4
|
3.5
|
0
-0.18
|
3
|
±0.125
|
0.6
|
+0.04
-0.07
|
8
|
3.5
|
+0.075
0
|
0.7
|
+0.14
0
|
1.5
|
>4~5
|
4
|
0
-0.18
|
3.5
|
±0.15
|
0.8
|
+0.04
-0.10
|
9
|
4
|
+0.075
0
|
0.9
|
+0.14
0
|
1.5
|
>5~6
|
5
|
0
-0.18
|
4.5
|
±0.15
|
0.8
|
+0.04
-0.10
|
10
|
5
|
+0.075
0
|
0.9
|
+0.14
0
|
1.5
|
>6~7
|
6
|
0
-0.18
|
5.5
|
±0.15
|
1
|
+0.05
-0.13
|
12
|
6
|
+0.075
0
|
1.1
|
+0.14
0
|
1.5
|
>7~9
|
8
|
0
-0.22
|
7.5
|
±0.18
|
1
|
+0.05
-0.13
|
16
|
8
|
+0.09
0
|
1.1
|
+0.14
0
|
1.8
|
>9~10
|
9
|
0
-0.22
|
8
|
±0.18
|
1
|
+0.05
-0.13
|
18
|
9
|
+0.09
0
|
1.1
|
+0.14
0
|
2
|
>10~13
|
12
|
0
-0.27
|
10.5
|
±0.215
|
1.2
|
+0.05
-0.13
|
24
|
12
|
+0.11
0
|
1.3
|
+0.14
0
|
2.5
|
>13~16
|
15
|
0
-0.27
|
13
|
±0.215
|
1.5
|
+0.06
-0.15
|
30
|
15
|
+0.11
0
|
1.6
|
+0.14
0
|
3
|
>16~20
|