O形橡胶密封圈尺寸系列 (摘自GB/T 3452.1-1992) (mm)
标记示例
O形圈内径d1=5.00mm,截面直径d2=1.80mm
第一种方法:O形密封圈5×1.8 GB/T 3452.1-1992
第二种方法:180代表d2,00500代表d1,GB/T 3452.1-1992
|
d1
|
d2
|
|
公称内径
|
极限
偏差
|
1.80±0.08
|
2.65±0.09
|
3.55±0.10
|
5.30±0.13
|
7.00±0.15
|
|
1.80
|
±0.13
|
*
|
|
|
|
|
|
2.00
|
*
|
|
|
|
|
|
2.24
|
*
|
|
|
|
|
|
2.50
|
*
|
|
|
|
|
|
2.80
|
*
|
|
|
|
|
|
3.15
|
*
|
|
|
|
|
|
3.55
|
*
|
|
|
|
|
|
3.75
|
*
|
|
|
|
|
|
4.00
|
*
|
|
|
|
|
|
4.50
|
*
|
|
|
|
|
|
4.87
|
*
|
|
|
|
|
|
5.00
|
*
|
|
|
|
|
|
5.15
|
*
|
|
|
|
|
|
5.30
|
*
|
|
|
|
|
|
5.60
|
*
|
|
|
|
|
|
6.00
|
*
|
|
|
|
|
|
6.30
|
±0.14
|
*
|
|
|
|
|
|
6.70
|
*
|
|
|
|
|
|
6.90
|
*
|
|
|
|
|
|
7.10
|
*
|
*
|
|
|
|
|
7.50
|
*
|
*
|
|
|
|
|
8.00
|
*
|
*
|
|
|
|
|
8.50
|
*
|
*
|
|
|
|
|
8.75
|
*
|
*
|
|
|
|
|
9.00
|
*
|
*
|
|
|
|
|
9.50
|
*
|
*
|
|
|
|
|
10.0
|
*
|
*
|
|
|
|
|
10.6
|
±0.17
|
*
|
*
|
|
|
|
|
11.2
|
*
|
*
|
|
|
|
|
11.8
|
*
|
*
|
|
|
|
|
12.5
|
*
|
*
|
|
|
|
|
13.2
|
*
|
*
|
|
|
|
|
14.0
|
*
|
*
|
|
|
|
|
15.0
|
*
|
*
|
|
|
|
|
16.0
|
*
|
*
|
|
|
|
|
17.0
|
*
|
*
|
|
|
|
|
18.0
|
*
|
*
|
*
|
|
|
|
19.0
|
±0.22
|
*
|
*
|
*
|
|
|
|
20.0
|
*
|
*
|
*
|
|
|
|
21.2
|
*
|
*
|
*
|
|
|
|
22.4
|
*
|
*
|
*
|
|
|
|
23.6
|
*
|
*
|
*
|
|
|
|
25.0
|
*
|
*
|
*
|
|
|
|
25.8
|
*
|
*
|
*
|
|
|
|
26.5
|
*
|
*
|
*
|
|
|
|
28.0
|
*
|
*
|
*
|
|
|
|
30.0
|
*
|
*
|
*
|
|
|
|
31.5
|
±0.30
|
*
|
*
|
*
|
|
|
|
32.5
|
*
|
*
|
*
|
|
|
|
33.5
|
*
|
*
|
*
|
|
|
|
34.5
|
*
|
*
|
*
|
|
|
|
35.5
|
*
|
*
|
*
|
|
|
|
36.5
|
*
|
*
|
*
|
|
|
|
37.5
|
*
|
*
|
*
|
|
|
|
38.7
|
*
|
*
|
*
|
|
|
|
40.0
|
*
|
*
|
*
|
*
|
|
|
41.2
|
*
|
*
|
*
|
*
|
|
|
42.5
|
*
|
*
|
*
|
*
|
|
|
43.7
|
*
|
*
|
*
|
*
|
|
|
45.0
|
*
|
*
|
*
|
*
|
|
|
46.2
|
*
|
*
|
*
|
*
|
|
|
47.5
|
*
|
*
|
*
|
*
|
|
|
48.7
|
*
|
*
|
*
|
*
|
|
|
50.0
|
*
|
*
|
*
|
*
|
|
|
51.5
|
±0.45
|
|
*
|
*
|
*
|
|
|
53.0
|
|
*
|
*
|
*
|
|
|
54.5
|
|
*
|
*
|
*
|
|
|
56.0
|
|
*
|
*
|
*
|
|
|
58.0
|
|
*
|
*
|
*
|
|
|
60.0
|
|
*
|
*
|
*
|
|
|
61.5
|
|
*
|
*
|
*
|
|
|
63.0
|
|
*
|
*
|
*
|
|
|
65.0
|
|
*
|
*
|
*
|
|
|
67.0
|
|
*
|
*
|
*
|
|
|
69.0
|
|
*
|
*
|
*
|
|
|
71.0
|
|
*
|
*
|
*
|
|
|
73.0
|
|
*
|
*
|
*
|
|
|
75.0
|
|
*
|
*
|
*
|
|
|
77.5
|
|
*
|
*
|
*
|
|
|
80.0
|
|
*
|
*
|
*
|
|
|
82.5
|
±0.65
|
|
|
*
|
*
|
|
|
85.0
|
|
*
|
*
|
*
|
|
|
87.5
|
|
|
*
|
*
|
|
|
90.0
|
|
*
|
*
|
*
|
|
|
92.5
|
|
|
*
|
*
|
|
|
95.0
|
|
*
|
*
|
*
|
|
|
97.5
|
|
|
*
|
*
|
|
|
100
|
|
*
|
*
|
*
|
|
|
103
|
|
|
*
|
*
|
|
|
106
|
|
*
|
*
|
*
|
|
|
109
|
|
|
*
|
*
|
*
|
|
112
|
|
*
|
*
|
*
|
*
|
|
115
|
|
|
*
|
*
|
*
|
|
118
|
|
*
|
*
|
*
|
*
|
|
122
|
±0.90
|
|
|
*
|
*
|
*
|
|
125
|
|
*
|
*
|
*
|
*
|
|
128
|
|
|
*
|
*
|
*
|
|
132
|
|
*
|
*
|
*
|
*
|
|
136
|
|
|
*
|
*
|
*
|
|
140
|
|
*
|
*
|
*
|
*
|
|
145
|
|
|
*
|
*
|
*
|
|
150
|
|
*
|
*
|
*
|
*
|
|
155
|
|
|
*
|
*
|
*
|
|
160
|
|
*
|
*
|
*
|
*
|
|
165
|
|
|
*
|
*
|
*
|
|
170
|
|
*
|
*
|
*
|
*
|
|
175
|
|
|
*
|
*
|
*
|
|
180
|
|
*
|
*
|
*
|
*
|
|
185
|
±1.20
|
|
|
*
|
*
|
*
|
|
190
|
|
|
*
|
*
|
*
|
|
195
|
|
|
*
|
*
|
*
|
|
200
|
|
|
*
|
*
|
*
|
|
206
|
|
|
|
|
*
|
|
212
|
|
|
|
*
|
*
|
|
218
|
|
|
|
|
*
|
|
224
|
|
|
|
*
|
*
|
|
230
|
|
|
|
|
*
|
|
236
|
|
|
|
|
*
|
|
243
|
|
|
|
|
*
|
|
250
|
|
|
|
|
*
|
|
258
|
±1.60
|
|
|
|
|
*
|
|
265
|
|
|
|
|
*
|
|
272
|
|
|
|
|
*
|
|
280
|
|
|
|
|
*
|
|
290
|
|
|
|
|
*
|
|
300
|
|
|
|
|
*
|
|
307
|
|
|
|
|
*
|
|
315
|
|
|
|
|
*
|
|
325
|
±2.10
|
|
|
|
|
*
|
|
335
|
|
|
|
|
*
|
|
345
|
|
|
|
|
*
|
|
355
|
|
|
|
|
*
|
|
365
|
|
|
|
|
*
|
|
375
|
|
|
|
|
*
|
|
387
|
|
|
|
|
*
|
|
400
|
|
|
|
|
*
|
|
412
|
±2.60
|
|
|
|
|
*
|
|
425
|
|
|
|
|
*
|
|
437
|
|
|
|
|
*
|
|
450
|
|
|
|
|
*
|
|
462
|
|
|
|
|
*
|
|
475
|
|
|
|
|
*
|
|
487
|
|
|
|
|
*
|
|
500
|
|
|
|
|
*
|
|
515
|
±3.20
|
|
|
|
|
*
|
|
530
|
|
|
|
|
*
|
|
545
|
|
|
|
|
*
|
|
560
|
|
|
|
|
*
|
|
580
|
|
|
|
|
*
|
|
600
|
|
|
|
|
*
|
|
615
|
|
|
|
|
*
|
|
630
|
|
|
|
|
*
|
|
650
|
±3.80
|
|
|
|
|
*
|
|
670
|
|
|
|
|
*
|
注：*表示栏内d2尺寸。
