标准 | O型圈截面直径 | ||||||
美国标准AS 568A | 1.78 | 2.62 | 3.53 | 5.33 | 7 | | |
英国标准BS 1806 | |||||||
英国标准BS 4518 | 1.6 | 2.4 | 3 | 5.7 | 8.4 | | |
瑞典标准SMS1586 | |||||||
法国标准R | 1.9 | 2.7 | 3.6 | 5.33 | 6.99 | | |
日本标准JIS B 2401 | 1.9 | 2.4 | 3.1 | 3.5 | 5.7 | 8.4 | |
国际标准ISO 3601/1 | 1.8 | 2.65 | 3.55 | 5.3 | 7 | | |
德国标准DIN 3771/1 | |||||||
中国标准GB 3452.1 | |||||||
中国标准GB 1235-1976 | 1.9 | 2.4 | 3.1 | 3.5 | 5.7 | 8.6 | |
优先的公制尺寸 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | |
4 | 4.5 | 5 | 5.5 | 6 | 7 | ||
8 | 10 | 12 | | | | ||
美国标准AS 568 | 1.02 | 1.42 | 1.63 | 1.83 | 1.98 | 2.08 | |
(900系列) | 2.21 | 2.46 | 2.95 | 3 | | |
| 静态密封 | 动态密封 |
工作压力 | 无挡圈时,最高可达20MPa | 无挡圈时,最高可达5MPa |
有挡圈时,最高可达40MPa | 有挡圈时,较高压力 | |
用特殊挡圈时,最高可达200MPa | ||
运动速度 | 最大往复速度可达0.5m/s,最大旋转速度可达2.0m/s。 | |
温度 | 一般场合:-30℃~+110℃;特殊橡胶:-60℃~+250℃;旋转场合:-30℃~+80℃ |
压力 MPa | O形圈截面直径W | ||||
1.78 | 2.62 | 3.53 | 5.33 | 7 | |
邵氏硬度A70 | |||||
≤3.50 | 0.08 | 0.09 | 0.1 | 0.13 | 0.15 |
≤7.00 | 0.05 | 0.07 | 0.08 | 0.09 | 0.1 |
≤10.50 | 0.03 | 0.04 | 0.05 | 0.07 | 0.08 |
邵氏硬度A80 | |||||
≤3.50 | 0.1 | 0.13 | 0.15 | 0.18 | 0.2 |
≤7.00 | 0.08 | 0.09 | 0.1 | 0.13 | 0.15 |
≤10.50 | 0.05 | 0.07 | 0.08 | 0.09 | 0.1 |
≤14.00 | 0.03 | 0.04 | 0.05 | 0.07 | 0.08 |
≤17.50 | 0.02 | 0.02 | 0.03 | 0.03 | 0.04 |
邵氏硬度A90 | |||||
≤3.50 | 0.13 | 0.15 | 0.2 | 0.23 | 0.25 |
≤7.00 | 0.1 | 0.13 | 0.15 | 0.18 | 0.2 |
≤10.50 | 0.07 | 0.09 | 0.1 | 0.13 | 0.15 |
≤14.00 | 0.05 | 0.07 | 0.08 | 0.09 | 0.1 |
≤17.50 | 0.04 | 0.05 | 0.07 | 0.08 | 0.09 |
≤21.00 | 0.03 | 0.04 | 0.05 | 0.07 | 0.08 |
≤35.00 | 0.02 | 0.03 | 0.03 | 0.04 | 0.04 |
O形圈截面直径 | 边长K | 半径r |
1.78 /1.80 | 2.4 +0.10 | 0.3 |
2 | 2.7 +0.10 | 0.4 |
2.4 | 3.2 +0.15 | 0.4 |
2.5 | 3.4 +0.15 | 0.6 |
2.62 /2.60 | 3.5 +0.15 | 0.6 |
3 | 4.0 +0.20 | 0.6 |
3.1 | 4.1 +0.20 | 0.6 |
3.53 /3.55 | 4.7 +0.20 | 0.9 |
4 | 5.4 +0.20 | 1.2 |
5 | 6.7 +0.25 | 1.2 |
5.33 /5.30 | 7.1 +0.25 | 1.5 |
5.7 | 7.6 +0.30 | 1.5 |
6 | 8.0 +0.30 | 1.5 |
7 | 9.4 +0.30 | 2 |
8 | 10.8 +0.30 | 2 |
8.4 | 11.3 +0.30 | 2 |
O形圈截面直径 | 沟槽宽度 | 沟槽深度 | 半径 | |
B±0.05 | H±0.05 | R1 | R2 | |
2.5 | 2.05 | 2 | 0.25 | 0.4 |
2.62/ 2.65 | 2.15 | 2.1 | 0.25 | 0.4 |
3.00 /3.10 | 2.4 | 2.4 | 0.25 | 0.4 |
3.53 /3.55 | 2.9 | 2.9 | 0.25 | 0.8 |
4 | 3.1 | 3.2 | 0.25 | 0.8 |
5 | 3.9 | 4.2 | 0.25 | 0.8 |
5.33/ 5.30 | 4.1 | 4.6 | 0.4 | 0.8 |
5.7 | 4.4 | 4.8 | 0.4 | 0.8 |
6 | 4.6 | 5.1 | 0.4 | 0.8 |
7 | 5.6 | 6 | 0.4 | 1.6 |
8 | 6 | 6.9 | 0.4 | 1.6 |
8.4 | 6.3 | 7.3 | 0.4 | 1.6 |
O型圈截面直径 | 径向安装 | 轴向安装 | 倒角半径 | |||||
沟槽深度 | 沟槽宽度 | 沟槽深度 | 沟槽宽度 | |||||
动密封 | 静密封 | b1+0.2 | b2+0.2 | b3+0.2 | h+0.05 | b4+0.2 | r1 | |
t1+0.05 | t+0.05 | |||||||
0.5 | - | 0.35 | 0.8 | - | - | 0.35 | 0.8 | 0.2 |
0.74 | - | 0.5 | 1 | - | - | 0.5 | 1 | 0.2 |
1.00 /1.02 | - | 0.7 | 1.4 | - | - | 0.7 | 1.4 | 0.2 |
1.2 | - | 0.85 | 1.7 | - | - | 0.85 | 1.7 | 0.2 |
1.25 /1.27 | - | 0.9 | 1.7 | - | - | 0.9 | 1.8 | 0.2 |
1.3 | - | 0.95 | 1.8 | - | - | 0.95 | 1.8 | 0.2 |
1.42 | - | 1.05 | 1.9 | - | - | 1.05 | 2 | 0.3 |
1.50 /1.52 | 1.25 | 1.1 | 2 | 3 | 4 | 1.1 | 2.1 | 0.3 |
1.60 /1.63 | 1.3 | 1.2 | 2.1 | 3.1 | 4.1 | 1.2 | 2.2 | 0.3 |
1.78/ 1.80 | 1.45 | 1.3 | 2.4 | 3.8 | 5.2 | 1.3 | 2.6 | 0.4 |
1.83 | 1.5 | 1.35 | 2.5 | 3.9 | 5.3 | 1.35 | 2.6 | 0.4 |
1.9 | 1.55 | 1.4 | 2.6 | 4 | 5.4 | 1.4 | 2.7 | 0.4 |
1.98/ 2.00 | 1.65 | 1.5 | 2.7 | 4.1 | 5.5 | 1.5 | 2.8 | 0.4 |
2.08/ 2.10 | 1.75 | 1.55 | 2.8 | 4.2 | 5.6 | 1.55 | 2.9 | 0.4 |
2.2 | 1.85 | 1.6 | 3 | 4.4 | 5.8 | 1.65 | 3 | 0.4 |
2.26 | 1.9 | 1.7 | 3 | 4.4 | 5.8 | 1.7 | 3.1 | 0.4 |
2.30 /2.34 | 1.95 | 1.75 | 3.1 | 4.5 | 5.9 | 1.75 | 3.1 | 0.4 |
2.4 | 2.05 | 1.8 | 3.2 | 4.6 | 6 | 1.8 | 3.3 | 0.5 |
2.46 | 2.1 | 1.85 | 3.3 | 4.7 | 6.1 | 1.85 | 3.4 | 0.5 |
2.5 | 2.15 | 1.85 | 3.3 | 4.7 | 6.1 | 1.85 | 3.4 | 0.5 |
2.62 /2.65 | 2.25 | 2 | 3.6 | 5 | 6.4 | 2 | 3.8 | 0.6 |
2.7 | 2.3 | 2.05 | 3.6 | 5 | 6.4 | 2.05 | 3.8 | 0.6 |
2.8 | 2.4 | 2.1 | 3.7 | 5.1 | 6.5 | 2.1 | 3.9 | 0.6 |
2.92 /2.95 | 2.5 | 2.2 | 3.9 | 5.3 | 6.7 | 2.2 | 4 | 0.6 |
3 | 2.6 | 2.3 | 4 | 5.4 | 6.8 | 2.3 | 4 | 0.6 |
3.1 | 2.7 | 2.4 | 4.1 | 5.5 | 6.9 | 2.4 | 4.1 | 0.6 |
3.5 | 3.05 | 2.65 | 4.6 | 6 | 7.4 | 2.65 | 4.7 | 0.6 |
3.53 /3.55 | 3.1 | 2.7 | 4.8 | 6.2 | 7.6 | 2.7 | 5 | 0.8 |
3.6 | 3.15 | 2.8 | 4.8 | 6.2 | 7.6 | 2.8 | 5.1 | 0.8 |
4 | 3.5 | 3.1 | 5.2 | 6.9 | 8.6 | 3.1 | 5.3 | 0.8 |
4.5 | 4 | 3.5 | 5.8 | 7.5 | 9.2 | 3.5 | 5.9 | 0.8 |
5 | 4.4 | 4 | 6.6 | 8.3 | 10.22 | 4 | 6.7 | 0.8 |
5.33 /5.30 | 4.7 | 4.3 | 7.1 | 8.8 | 10.5 | 4.3 | 7.3 | 1.2 |
5.5 | 4.8 | 4.5 | 7.1 | 8.8 | 10.5 | 4.5 | 7.3 | 1.2 |
5.7 | 5 | 4.6 | 7.2 | 8.9 | 10.6 | 4.6 | 7.4 | 1.2 |
6 | 5.3 | 4.9 | 7.4 | 9.1 | 10.8 | 4.9 | 7.6 | 1.2 |
6.5 | 5.7 | 5.4 | 8 | 9.7 | 11.4 | 5.4 | 8.2 | 1.2 |
6.99 /7.00 | 6.1 | 5.8 | 9.5 | 12 | 14.5 | 5.8 | 9.7 | 1.5 |
7.5 | 6.6 | 6.3 | 9.7 | 12.2 | 14.7 | 6.3 | 9.9 | 1.5 |
8 | 7.1 | 6.7 | 9.8 | 12.3 | 14.8 | 6.7 | 10 | 1.5 |
8.4 | 7.5 | 7.1 | 10 | 12.5 | 15 | 7.1 | 10.3 | 1.5 |
9 | 8.1 | 7.7 | 10.6 | 13.1 | 15.6 | 7.7 | 10.9 | 2 |
9.5 | 8.6 | 8.2 | 11 | 13.5 | 16 | 8.2 | 11.4 | 2 |
10 | 9.1 | 8.6 | 11.6 | 14.1 | 16.6 | 8.6 | 12 | 2.5 |
12 | 11 | 10.6 | 13.5 | 16 | 18.5 | 10.6 | 14 | 2.5 |
密封形式 | 表面 | Rmax(μm) | Rmax(μm) | Rmax(μm) |
径向动密封 | 配合表面(孔、杆、轴) | 1.0~4.0 | 0.63~2.5 | 0.1~0.4 |
沟槽表面(直径、侧面) | ≤16.0 | ≤10.0 | ≤1.6 | |
径向静密封 | 配合表面沟槽表面(直径、侧面) | ≤16.0 | ≤10.0 | ≤1.6 |
轴向静密封 | 压力脉动场合、配合表面 | ≤10.0 | ≤6.3 | 0.8 |
沟槽表面(直径、侧面) |