This standard specifies the size series and tolerances of O-shaped rubber sealing rings (hereinafter referred to as O-rings). This standard applies to the dimensions and tolerances of general and aerospace O-rings used in hydraulic and pneumatic systems and components. GB 3452.1-1992 Dimensional series and tolerances of O-shaped rubber seals for hydraulic and pneumatic applications GB3452.1-1992 Standard download and decompression password: www.bzxz.net

National Standards of the People's Republic of China
O-shaped rubber sealing rings for hydraulic and pneumatic use
Dimensional series and specifications
Differences
Fluid systems-Sealing devices--O-rings- Inside diameters, cross-sections, tolerancesand size identification codeGB 3452.1—92
Acting police GB 3452.1—82
This standard refers to the international standard ISO 3601-1--19884 fluid system sealing device--- 0 Shape Wai - Section, Tolerance and Specification Identification Code".
Subject content and scope of application
This standard specifies the size series and tolerances of O-shaped rubber seals (hereinafter referred to as O-shaped diagrams). This standard applies to the dimensions and tolerances of general and aerospace O-shaped enclosures for hydraulic and pneumatic systems and components. 2 Code number
2.1 Application code
G--General O-shaped girth series
A-Aerospace O-shaped girth series.
2.2 Dimension code
2.2.1 Diameter code
d.—0-shaped plaque inner diameter, mm,
—0-shaped cross-sectional diameter, mm.
d,
2.2.2 Code of cross-sectional diameter (d2) value
A-.--1.80mm
B-----2.65mm|| tt||C---3. 55mm
D---5. 30mm
E--7.00mm.
3 Shape and Marking
3.1 Shape| |tt||The shape of the O-shape is circular, as shown in the figure below. Approved by the Bureau of National Physics and Technical Supervision on December 12, 1992 - Part 1: Inner diameter.
1993-10-01 Implementation
3
3.2 mark
GB 3452.1 92
O-shaped rubber sealing ring
3.2.1 The first marking method is represented by "section weight value code, inner weight, usage code, standard number\". Note: When the purpose is known, the process code is not marked. Example: the inner diameter d) is 8.75mm, the cross-section A universal 0-shaped figure with a diameter (d) of 1.80mm, marked as: A
0X0X8X7
G
GB 3452.1
Standard No.
General| |tt||The value of the inner diameter in units of 0.1mm (the percentile of millimeters is not marked) The value of the inner diameter in units of 1rmum
The value of the inner diameter in units of 10mm
The value of the inner diameter in units of 100mm
A cross-section diameter is 1.80mm
3.2.2 There are two marking methods, represented by *d, ×2, application code, standard number". Indicates: an O-shaped device for aerospace use with an inner diameter (u.) of 8.75mn and a mounting surface diameter (d) of 1.80mm. The mark is: 8.75 ) are listed in Table 1. 4.2 The dimensions and tolerances of the 0-shaped figure series for aerospace use (code A) are listed in Table 2. Inner diameter
1.80
2.80
3.15|| tt||75
4.50
4.87
5.30
5.60
6.00
6.30
6.70||tt| |6.90
7.10
7.50
8.00
8.50
8.75
9.00
9.50
10.0
11.8
12.5
13.2
14.0
15.0
16.0
17.0
18.0|| tt||19.0
20.0
21.2
22.4
25.8
26.5
28.0
30.0||tt| |31.5
32.5
33.5
34.5
35. 5
36.5
37.5
38.7||tt| |40. 0
d.
Tolerance
±0.13
±0.14
±0.17
±0.22
±0.30
Table 1
de
1.80±0.08
2 65 ±0.09
3. 55±0.10
x×× ××
Xx×
x
x
XXX×X
xx
xx×
xxxxx|| tt||x
X
x
x
+
x
★
x||tt| |X
Y
X
XX
XXXX>
X
x××
x||tt ||xx
+
X
x
+
x
x
x
x
5.30±0.13
×
x
+
XX
X
X
Xx
XXX
X
X
xx
x
X
xx
×× ×x
x
x
×××××
x
x×××
X
GB3452.1--92
Universal O-type garden series (inner diameter of code G, cross-section and tolerance d2
7. 00 ±0. 15
Note: "×\ means this The specification inner diameter specified by Biaoyan
41.2
45.0
46.2
47.5
48.7
50.0
51.5|| tt||53.0
54. 5
56.0
58.0
60.0
61.5
63.0
65.0|| tt||67.0
69.0
71.0
77.5
80.0
82.5
90.0
92.5||tt| |95.0
97.5
100
103
106
109
112
115
118
122
125
128
132
136
140
145
150|| tt||155
160
165
170
175
180
185
190||tt| |d
Tolerance
±0.36
±0.44
±0.53
±0.65
±0.90
±1.20
1.80±0.08
2.65±0.09
3.55±0.10
x
X
X
7. 00 ±0. 15
5.30±0.13
xxx>
××Xx
+
×
×
×××××
x ××x
XX×x
X××××
x
×××
XxX>
x| |tt||x
×××X×
x
X×XX×
+
xx
+|| tt||X
XXXX
xx>
X
×××X×
XXXXX
+
××××
x
Xxx
x
x
x
XX
+||tt| |x
xx
X
★
X
x
x
x
xxx
xxxx
X
XXXx
x
x×
x
x
x| |tt||××××× ××××>
×××××××××
xxxx
×x××
x| |tt||x
x
内很
195
1
218
224
243||tt ||250
280
290
300
335
345
375
387
400
437
450
462
475
487
500
515
530| |tt||350
600
615
630
650
670
d
公差||tt ||±1.20
±1.60
±2.10
±2.60
±3.20
±4.00
1.80±0.08||tt ||2.65±0.09||hh||mm||hh||d||hh||3.55±0.10||hh||Xx||hh||7. 00±0. 15
5.30±0.13
x×X×××××××××××××××××X×××××××××X× × ××××××××× ××××× ×××X×x
XXXXX
X××X×××XX
5
内很
1.80
2.50
2.80
3.15
4.00
4.50
4.87
5.00| |tt||5.15
5.30
5.60
6.00
6.30
6.70
6.90
7.10||tt ||7.50||h||8.00||h||d,||h||8.50||h||8. 75
9.00
9.50
10.0
11.8
12.5
13.2
14.0
15.0| |tt||16.0
17. 0
18.0
19.0
20.0
21.2
22.4
26.5
28.0
32.5| |tt||33.5
公差
±0.13
GB 3452.1—92
表2
宇航用形圈系系（代号A）的内很、 电影及公差d2
1.80±0.08
2.65±0.09
3.55±0.10
区xxxx
×XX×
x
××××
x
xxx
x
x
x
x×||tt| |±0.14
±0.16
±0.21
±0.28
×××
X
X
+ bZxz.net
X×X
x
xxx
X
x
xxxx
XXX×
5.30±0.13
x×x
x
Xxxx
X
×
★
xxxx||tt ||×xxx
××x>
xxx
x
X
+
1x
+| |tt||×××××
××
xx
xx
××
X
区||tt ||7.00±0.15
注：×\可以本标准安全电影。内很
34.5
35.5
36.5
37.5||tt| |38.7
40.0
41.2
45.0
46.2
47.5
48.7
50.0
51.5
53.0
58.0
60.0
61.5
67.0
69.0
71.0
73.0|| tt||25.8
77. 5
80.0
82.5
85.0
d
87.5
90.0
92.5
95.0| |tt||97.5
100
103
106
109
112
122
125||tt ||128
132
136
140
公羞
±0.28
±0.33
±0.40| |tt||±0.48
±0.55
d2
3.55±0.10
2.65±0.09
1.80±0.08
5.30± 0.13
x
x
～
x
XXXX
X
X
X| |tt||x
X
XXX
X
X
xx
x
X||tt ||X
××××
xx
x
+
+
x
X|| tt||x
XX
x
X
x
x
x
x||tt| |x
x
x
X
X
X
X
x
x
x
x
x
±0.65
x
x
xx
xx
x
x
x
Xx| |tt||XX
xx
x
X
X
x
x
x||tt ||X
x
7.00±0.15
X
中
+
×Xx>
xxxxx| |tt||xxxxx
×x
xx
x
xx
×xx
×XxXX
xxxx
x
×xxxxx×xx×
×××××
xxxxx xxxx×
x××××
内很
145
150
155
160
165
170
185
190|| tt||195
200
206
212
218
224
230
250||tt| |290
300
307
335
345
355
387
400
d .
公差
±0.80
±1.00
±1.30
2.65±0.09
1.80±0.08
X
x
mm
d2
5.30±0.13
7.00±0.15
3.55±0.10
x|| tt||××××
××x×× ××
X
X
X
X
X| |tt||x
±1.60
±1.90
xx
×xx
x
×x
xx
X×××××××× ×××××××××X×X××××
X×X××
×x×× ×
xx×
x
X
XXX
×x
×××××
x| |tt||additional description：
GB3452.1~92
本检代由中华人全共和国和学院部是是，本检们由学法工业部rubber seal products由北京工业部西北美州工业电影研究电影主草本主婴起草人苏贵荣、张希斌、王文福、主德利、王子艳。
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