GB/T1800.3-1998 |
点击这返回总目录 |
基本尺寸 |
公 差 等 级 |
|
|
|
|
|
|
[mm] |
IT01 |
IT0 |
IT1 |
IT2 |
IT3 |
IT4 |
IT5 |
IT6 |
IT7 |
IT8 |
IT9 |
IT10 |
IT11 |
IT12 |
IT13 |
IT14 |
IT15 |
IT16 |
IT17 |
IT18 |
|
|
|
|
|
|
大于 |
至 |
[μm] |
[mm] |
|
|
|
|
|
|
— |
3 |
0.3 |
0.5 |
0.8 |
1.2 |
2 |
3 |
4 |
6 |
10 |
14 |
25 |
40 |
60 |
0.10 |
0.14 |
0.25 |
0.40 |
0.60 |
1.0 |
1.4 |
|
|
|
|
|
|
3 |
6 |
0.4 |
0.6 |
1 |
1.5 |
2.5 |
4 |
5 |
8 |
12 |
18 |
30 |
48 |
75 |
0.12 |
0.18 |
0.30 |
0.48 |
0.75 |
1.2 |
1.8 |
|
|
|
|
|
|
6 |
10 |
0.4 |
0.6 |
1 |
1.5 |
2.5 |
4 |
6 |
9 |
15 |
22 |
36 |
58 |
90 |
0.15 |
0.22 |
0.36 |
0.58 |
0.90 |
1.5 |
2.2 |
|
|
|
|
|
|
10 |
18 |
0.5 |
0.8 |
1.2 |
2 |
3 |
5 |
8 |
11 |
18 |
27 |
43 |
70 |
110 |
0.18 |
0.27 |
0.43 |
0.70 |
1.10 |
1.8 |
2.7 |
|
|
|
|
|
|
18 |
30 |
0.6 |
1 |
1.5 |
2.5 |
4 |
6 |
9 |
13 |
21 |
33 |
52 |
84 |
130 |
0.21 |
0.33 |
0.52 |
0.84 |
1.30 |
2.1 |
3.3 |
|
|
|
|
|
|
30 |
50 |
0.6 |
1 |
1.5 |
2.5 |
4 |
7 |
11 |
16 |
25 |
39 |
62 |
100 |
160 |
0.25 |
0.39 |
0.62 |
1.00 |
1.60 |
2.5 |
3.9 |
|
|
|
|
|
|
50 |
80 |
0.8 |
1.2 |
2 |
3 |
5 |
8 |
13 |
19 |
30 |
46 |
74 |
120 |
190 |
0.30 |
0.46 |
0.74 |
1.20 |
1.90 |
3.0 |
4.6 |
|
|
|
|
|
|
80 |
120 |
1 |
1.5 |
2.5 |
4 |
6 |
10 |
15 |
22 |
35 |
54 |
87 |
140 |
220 |
0.35 |
0.54 |
0.87 |
1.40 |
2.20 |
3.5 |
5.4 |
|
|
|
|
|
|
120 |
180 |
1.2 |
2 |
3.5 |
5 |
8 |
12 |
18 |
25 |
40 |
63 |
100 |
160 |
250 |
0.40 |
0.63 |
1.00 |
1.60 |
2.50 |
4.0 |
6.3 |
|
|
|
|
|
|
180 |
250 |
2 |
3 |
4.5 |
7 |
10 |
14 |
20 |
29 |
46 |
72 |
115 |
185 |
290 |
0.46 |
0.72 |
1.15 |
1.85 |
2.90 |
4.6 |
7.2 |
|
|
|
|
|
|
250 |
315 |
2.5 |
4 |
6 |
8 |
12 |
16 |
23 |
32 |
52 |
81 |
130 |
210 |
320 |
0.52 |
0.81 |
1.30 |
2.10 |
3.20 |
5.2 |
8.1 |
|
|
|
|
|
|
315 |
400 |
3 |
5 |
7 |
9 |
13 |
18 |
25 |
36 |
57 |
89 |
140 |
230 |
360 |
0.57 |
0.89 |
1.40 |
2.30 |
3.60 |
5.7 |
8.9 |
|
|
|
|
|
|
400 |
500 |
4 |
6 |
8 |
10 |
15 |
20 |
27 |
40 |
63 |
97 |
155 |
250 |
400 |
0.63 |
0.97 |
1.55 |
2.50 |
4.00 |
6.3 |
9.7 |
|
|
|
|
|
|
500 |
630 |
|
|
9 |
11 |
16 |
22 |
32 |
44 |
70 |
110 |
175 |
280 |
440 |
0.70 |
1.10 |
1.75 |
2.80 |
4.40 |
7.0 |
11.0 |
|
|
|
|
|
|
630 |
800 |
|
|
10 |
13 |
18 |
25 |
36 |
50 |
80 |
125 |
200 |
320 |
500 |
0.80 |
1.25 |
2.00 |
3.20 |
5.00 |
8.0 |
12.5 |
|
|
|
|
|
|
800 |
1000 |
|
|
11 |
15 |
21 |
28 |
40 |
56 |
90 |
140 |
230 |
360 |
560 |
0.90 |
1.40 |
2.30 |
3.60 |
5.60 |
9.0 |
14.0 |
|
|
|
|
|
|
1000 |
1250 |
|
|
13 |
18 |
24 |
33 |
47 |
66 |
105 |
165 |
260 |
420 |
660 |
1.05 |
1.65 |
2.60 |
4.20 |
6.60 |
10.5 |
16.5 |
|
|
|
|
|
|
1250 |
1600 |
|
|
15 |
21 |
29 |
39 |
55 |
78 |
125 |
195 |
310 |
500 |
780 |
1.25 |
1.95 |
3.10 |
5.00 |
7.80 |
12.5 |
19.5 |
|
|
|
|
|
|
1600 |
2000 |
|
|
18 |
25 |
35 |
46 |
65 |
92 |
150 |
230 |
370 |
600 |
920 |
1.50 |
2.30 |
3.70 |
6.00 |
9.20 |
15.0 |
23.0 |
|
|
|
|
|
|
2000 |
2500 |
|
|
22 |
30 |
41 |
55 |
78 |
110 |
175 |
280 |
440 |
700 |
1100 |
1.75 |
2.80 |
4.40 |
7.00 |
11.0 |
17.5 |
28.0 |
|
|
|
|
|
|
2500 |
3150 |
|
|
26 |
36 |
50 |
68 |
96 |
135 |
210 |
330 |
540 |
860 |
1350 |
2.10 |
3.30 |
5.40 |
8.60 |
13.5 |
21.0 |
33.0 |
|
|
|
|
|
|
注:基本尺寸小于1mm时,无IT14至IT18。 |
|
|
|
|
|
|
未注公差尺寸的偏差 GB/T1804-1992 |
|
|
|
|
|
|
公差等级 |
线性尺寸的极限偏差 |
倒圆半径与倒角高度尺寸的极限偏差数值 |
|
|
|
|
|
|
尺 寸 分 段 |
尺 寸 分 段 |
|
|
|
|
|
|
0.5~3 |
>3~6 |
>6~30 |
>30~120 |
>120~400 |
>400~1000 |
>1000~2000 |
>2000~4000 |
0.5~3 |
>3~6 |
>6~30 |
>30 |
|
|
|
|
|
|
f |
±0.05 |
±0.05 |
±0.1 |
±0.15 |
±0.2 |
±0.3 |
±0.5 |
- |
±0.2 |
±0.5 |
±1 |
±2 |
|
|
|
|
|
|
m |
±0.1 |
±0.1 |
±0.2 |
±0.3 |
±0.5 |
±0.8 |
±1.2 |
±2 |
|
|
|
|
|
|
c |
±0.2 |
±0.3 |
±0.3 |
±0.8 |
±1.2 |
±2 |
±3 |
±4 |
±0.4 |
±1 |
±2 |
±4 |
|
|
|
|
|
|
v |
- |
±0.5 |
±1 |
±1.5 |
±2.5 |
±4 |
±6 |
±8 |
|
|
|
|
|
|
量 规 的 公 差 |
|
|
|
|
|
|
|
|
基本尺寸 |
IT6 |
算T |
规T |
算Z |
规Z |
T基 |
IT7 |
算T |
规T |
算Z |
规Z |
T基 |
IT8 |
算T |
规T |
算Z |
规Z |
T基 |
|
|
|
|
|
|
|
|
— |
3 |
6 |
0.9 |
1 |
1.1 |
1 |
0.5 |
10 |
1.1 |
1.2 |
1.5 |
1.6 |
1.0 |
14 |
1.4 |
1.6 |
2.1 |
2 |
1.2 |
|
|
|
|
|
|
|
|
3 |
6 |
8 |
1.2 |
1.2 |
1.4 |
1.4 |
0.8 |
12 |
1.5 |
1.4 |
2.0 |
2 |
1.3 |
18 |
1.9 |
2 |
2.7 |
2.6 |
1.6 |
|
|
|
|
|
|
|
|
6 |
10 |
9 |
1.4 |
1.4 |
1.6 |
1.6 |
0.9 |
15 |
1.7 |
1.8 |
2.2 |
2.4 |
1.5 |
22 |
2.1 |
2.4 |
3.1 |
3.2 |
2.0 |
|
|
|
|
|
|
|
|
10 |
18 |
11 |
1.7 |
1.6 |
1.9 |
2 |
1.2 |
18 |
2.1 |
2 |
2.7 |
2.8 |
1.8 |
27 |
2.6 |
2.8 |
3.8 |
4 |
2.6 |
|
|
|
|
|
|
|
|
18 |
30 |
13 |
2.0 |
2 |
2.3 |
2.4 |
1.4 |
21 |
2.4 |
2.4 |
3.2 |
3.4 |
2.2 |
33 |
3.0 |
3.4 |
4.5 |
5 |
3.3 |
|
|
|
|
|
|
|
|
30 |
50 |
16 |
2.4 |
2.4 |
2.8 |
2.8 |
1.6 |
25 |
3.0 |
3 |
3.9 |
4 |
2.5 |
39 |
3.8 |
4 |
5.5 |
6 |
4.0 |
|
|
|
|
|
|
|
|
50 |
80 |
19 |
2.9 |
2.8 |
3.3 |
3.4 |
2.0 |
30 |
3.6 |
3.6 |
4.7 |
4.6 |
2.8 |
46 |
4.5 |
4.6 |
6.5 |
7 |
4.7 |
|
|
|
|
|
|
|
|
80 |
120 |
22 |
3.3 |
3.2 |
3.9 |
3.8 |
2.2 |
35 |
4.1 |
4.2 |
5.4 |
5.4 |
3.3 |
54 |
5.2 |
5.4 |
7.5 |
8 |
5.3 |
|
|
|
|
|
|
|
|
120 |
180 |
25 |
3.8 |
3.8 |
4.4 |
4.4 |
2.5 |
40 |
4.7 |
4.8 |
6.1 |
6 |
3.6 |
63 |
5.9 |
6 |
8.6 |
9 |
6.0 |
|
|
|
|
|
|
|
|
180 |
250 |
29 |
4.4 |
4.4 |
5.1 |
5 |
2.8 |
46 |
5.4 |
5.4 |
7.1 |
7 |
4.3 |
72 |
6.8 |
7 |
9.9 |
10 |
6.5 |
|
|
|
|
|
|
|
|
250 |
315 |
32 |
4.8 |
4.8 |
5.6 |
5.6 |
3.2 |
52 |
6.0 |
6 |
7.8 |
8 |
5.0 |
81 |
7.5 |
8 |
11.0 |
11 |
7.0 |
|
|
|
|
|
|
|
|
315 |
400 |
36 |
5.4 |
5.4 |
6.3 |
6.2 |
3.5 |
57 |
6.8 |
7 |
8.8 |
9 |
5.5 |
89 |
8.4 |
9 |
12.3 |
12 |
7.5 |
|
|
|
|
|
|
|
|
400 |
500 |
40 |
6.0 |
6 |
7.0 |
7 |
4.0 |
63 |
7.5 |
8 |
9.8 |
10 |
6.0 |
97 |
9.4 |
10 |
13.7 |
14 |
9.0 |
|
|
|
|
|
|
|
|
基本尺寸 |
IT9 |
算T |
规T |
算Z |
规Z |
T基 |
IT10 |
算T |
规T |
算Z |
规Z |
T基 |
IT11 |
算T |
规T |
算Z |
规Z |
T基 |
|
|
|
|
|
|
|
|
— |
3 |
25 |
1.8 |
2 |
2.9 |
3 |
2.0 |
40 |
2.2 |
2.4 |
4.0 |
4 |
2.8 |
60 |
2.7 |
3 |
5.6 |
6 |
4.5 |
|
|
|
|
|
|
|
|
3 |
6 |
30 |
2.3 |
2.4 |
3.8 |
4 |
2.8 |
48 |
2.9 |
3 |
5.4 |
5 |
3.5 |
75 |
3.7 |
4 |
7.5 |
8 |
6.0 |
|
|
|
|
|
|
|
|
6 |
10 |
36 |
2.6 |
2.8 |
4.3 |
5 |
3.6 |
58 |
3.3 |
3.6 |
6.1 |
6 |
4.2 |
90 |
4.1 |
5 |
8.5 |
9 |
6.5 |
|
|
|
|
|
|
|
|
10 |
18 |
43 |
3.2 |
3.4 |
5.3 |
6 |
4.3 |
70 |
4.0 |
4 |
7.4 |
8 |
6.0 |
110 |
5.0 |
6 |
10.4 |
11 |
8.0 |
|
|
|
|
|
|
|
|
18 |
30 |
52 |
3.8 |
4 |
6.2 |
7 |
5.0 |
84 |
4.8 |
5 |
8.7 |
9 |
6.5 |
130 |
6.0 |
7 |
12.2 |
13 |
9.5 |
|
|
|
|
|
|
|
|
30 |
50 |
62 |
4.7 |
5 |
7.7 |
8 |
5.5 |
100 |
5.9 |
6 |
10.8 |
11 |
8.0 |
160 |
7.3 |
8 |
15.1 |
16 |
12.0 |
|
|
|
|
|
|
|
|
50 |
80 |
74 |
5.6 |
6 |
9.1 |
9 |
6.0 |
120 |
7.0 |
7 |
12.8 |
13 |
9.5 |
190 |
8.7 |
9 |
17.9 |
19 |
14.5 |
|
|
|
|
|
|
|
|
80 |
120 |
87 |
6.4 |
7 |
10.6 |
10 |
6.5 |
140 |
8.1 |
8 |
14.8 |
15 |
11.0 |
220 |
10.1 |
10 |
20.7 |
22 |
17.0 |
|
|
|
|
|
|
|
|
120 |
180 |
100 |
7.3 |
8 |
12.0 |
12 |
8.0 |
160 |
9.2 |
9 |
16.8 |
18 |
13.5 |
250 |
11.4 |
12 |
23.5 |
25 |
19.0 |
|
|
|
|
|
|
|
|
180 |
250 |
115 |
8.5 |
9 |
13.9 |
14 |
9.5 |
185 |
10.6 |
10 |
19.5 |
20 |
15.0 |
290 |
13.3 |
14 |
27.3 |
29 |
22.0 |
|
|
|
|
|
|
|
|
250 |
315 |
130 |
9.4 |
10 |
15.4 |
16 |
11.0 |
210 |
11.7 |
12 |
21.5 |
22 |
16.0 |
320 |
14.6 |
16 |
30.1 |
32 |
24.0 |
|
|
|
|
|
|
|
|
315 |
400 |
140 |
10.5 |
11 |
17.3 |
18 |
12.5 |
230 |
13.2 |
14 |
24.2 |
25 |
18.0 |
360 |
16.5 |
18 |
33.9 |
36 |
27.0 |
|
|
|
|
|
|
|
|
400 |
500 |
155 |
11.7 |
12 |
19.208 |
20 |
14.0 |
250 |
14.6 |
16 |
26.8912 |
28 |
20.0 |
400 |
18.3 |
20 |
37.64768 |
40 |
30.0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|