适用于装在各种机械设备上,在规定的温度、压力、以及不同的液体和气体介质中,于静止或运动状态下起密封作用。在机床、船舶、汽车、航空航天设备、冶金机械、化工机械、工程机械、建筑机械、矿山机械、石油机械、塑料机械、农业机械、以及各类仪器仪表上,大量应用着各种类型的密封元件。O型密封圈主要用于静密封和往复运动密封。用于旋转运动密封时,仅限于低速回转密封装置。O型密封圈一般安装在外圆或内圆上截面为矩形的沟槽内起密封作用。O型密封圈在耐油、酸碱、磨、化学侵蚀等环境依然起到良好密封、减震作用。因此,O型密封圈是液压与气压传动系统中使用最广泛的一种密封件。
【技术参数】
1、压力静密封、无挡园≤20Mpa,有挡s40Mpa
3、标准:日标JIS P系列/日标JIS G系列/美标AS568
①、丁腈橡胶NBR:-45℃~+110°C
②、氟橡胶FKM:-20°C~+220°C
③、硅橡胶VMQ:-55°C~+250°C
5、最大压缩量:O型医直径的30%
二、【O型的优点】
O型密封圈与其他型式密封圈比较,具有以下优点:
--适合多种密封形式:静态密封、动态密封
适合各种用途材料,尺寸和沟槽都已标准化,互换性强
--适合多种运动方式:旋转运动、轴向往复运动或组合运动(例如旋转往复组合运动)
--适合多种不同的密封介质:油、水、气、化学介质或其它混合介质
通过选用合适的橡胶材料和适当的配方设计,实现对油、水、空气、煤气及各种化学介质有效的密封作用。温度使用范围广(-60℃~+220℃),固定使用时压力可达1500Kg/cm2(与补强环并用)。
--设计简单,结构小巧,装拆方便
O形圈断面结构极其简单,且有自密封作用,密封性能可靠。
由于O形圈本身及安装部位结构都极其简单,且已形成标准化,因此安装更换都非常容易。
--成本低廉
--动摩擦阻力比较小
三、【O型工作原理图
标准规格 |
***ID=内径;C/S=线径*** | | | | | | |
型号 | 尺寸(mm) | 型号 | 尺寸(mm) | 型号 | 尺寸(mm) | 型号 | 尺寸(mm) |
ID × C/S | ID × C/S | ID × C/S | ID × C/S |
P3 | 2.8 | ×1.9 | P10a | 9.8 | ×2.4 | P22a | 21.7 | ×3.5 | P48a | 47.6 | ×5.7 |
P4 | 3.8 | ×1.9 | P11 | 10.8 | ×2.4 | P22.4 | 22.1 | ×3.5 | P50a | 49.6 | ×5.7 |
P5 | 4.8 | ×1.9 | P11.2 | 11.0 | ×2.4 | P24 | 23.7 | ×3.5 | P52 | 51.6 | ×5.7 |
P6 | 5.8 | ×1.9 | P12 | 11.8 | ×2.4 | P25 | 24.7 | ×3.5 | P53 | 52.6 | ×5.7 |
P7 | 6.8 | ×1.9 | P12.5 | 12.3 | ×2.4 | P25.5 | 25.2 | ×3.5 | P55 | 54.6 | ×5.7 |
P8 | 7.8 | ×1.9 | P14 | 13.8 | ×2.4 | P26 | 25.7 | ×3.5 | P56 | 55.6 | ×5.7 |
P9 | 8.8 | ×1.9 | P15 | 14.8 | ×2.4 | P28 | 27.7 | ×3.5 | P58 | 57.6 | ×5.7 |
P10 | 9.8 | ×1.9 | P16 | 15.8 | ×2.4 | P29 | 28.7 | ×3.5 | P60 | 59.6 | ×5.7 |
| | | P18 | 17.8 | ×2.4 | P29.5 | 29.2 | ×3.5 | P62 | 61.6 | ×5.7 |
| | | P20 | 19.8 | ×2.4 | P30 | 29.7 | ×3.5 | P63 | 62.6 | ×5.7 |
| | | P21 | 20.8 | ×2.4 | P31 | 30.7 | ×3.5 | P65 | 64.6 | ×5.7 |
| | | P22 | 21.8 | ×2.4 | P31.5 | 31.2 | ×3.5 | P67 | 66.6 | ×5.7 |
| | | | | | P32 | 31.7 | ×3.5 | P70 | 69.6 | ×5.7 |
| | | | | | P34 | 33.7 | ×3.5 | P71 | 70.6 | ×5.7 |
| | | | | | P35 | 34.7 | ×3.5 | P75 | 74.6 | ×5.7 |
| | | | | | P35.5 | 35.2 | ×3.5 | P80 | 79.6 | ×5.7 |
| | | | | | P36 | 35.7 | ×3.5 | P85 | 84.6 | ×5.7 |
| | | | | | P38 | 37.7 | ×3.5 | P90 | 89.6 | ×5.7 |
| | | | | | P39 | 38.7 | ×3.5 | P95 | 94.6 | ×5.7 |
| | | | | | P40 | 39.7 | ×3.5 | P100 | 99.6 | ×5.7 |
| | | | | | P41 | 40.7 | ×3.5 | P102 | 101.6 | ×5.7 |
| | | | | | P42 | 41.7 | ×3.5 | P105 | 104.6 | ×5.7 |
| | | | | | P44 | 43.7 | ×3.5 | P110 | 109.6 | ×5.7 |
| | | | | | P45 | 44.7 | ×3.5 | P112 | 111.6 | ×5.7 |
| | | | | | P46 | 45.7 | ×3.5 | P115 | 114.6 | ×5.7 |
| | | | | | P48 | 47.7 | ×3.5 | P120 | 119.6 | ×5.7 |
| | | | | | P49 | 48.7 | ×3.5 | P125 | 124.6 | ×5.7 |
| | | | | | P50 | 49.7 | ×3.5 | P130 | 129.6 | ×5.7 |
| | | | | | | | | P132 | 131.6 | ×5.7 |
| | | | | | | | | P135 | 134.6 | ×5.7 |
| | | | | | | | | P140 | 139.6 | ×5.7 |
| | | | | | | | | P145 | 144.6 | ×5.7 |
| | | | | | | | | P150 | 149.6 | ×5.7 |
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型号 | 尺寸(mm) | 型号 | 尺寸(mm) | 型号 | 尺寸(mm) | | | |
ID × C/S | ID × C/S | ID × C/S | | | |
P150a | 149.5 | ×8.4 | G25 | 24.4 | ×3.1 | G150 | 149.3 | ×5.7 | | | |
P155 | 154.5 | ×8.4 | G30 | 29.4 | ×3.1 | G155 | 154.3 | ×5.7 | | | |
P160 | 159.5 | ×8.4 | G35 | 34.4 | ×3.1 | G160 | 159.3 | ×5.7 | | | |
P165 | 164.5 | ×8.4 | G40 | 39.4 | ×3.1 | G165 | 164.3 | ×5.7 | | | |
P170 | 169.5 | ×8.4 | G45 | 44.4 | ×3.1 | G170 | 169.3 | ×5.7 | | | |
P175 | 174.5 | ×8.4 | G50 | 49.4 | ×3.1 | G175 | 174.3 | ×5.7 | | | |
P180 | 179.5 | ×8.4 | G55 | 54.4 | ×3.1 | G180 | 179.3 | ×5.7 | | | |
P185 | 184.5 | ×8.4 | G60 | 59.4 | ×3.1 | G185 | 184.3 | ×5.7 | | | |
P190 | 189.5 | ×8.4 | G65 | 64.4 | ×3.1 | G190 | 189.3 | ×5.7 | | | |
P195 | 194.5 | ×8.4 | G70 | 69.4 | ×3.1 | G195 | 194.3 | ×5.7 | | | |
P200 | 199.5 | ×8.4 | G75 | 74.4 | ×3.1 | G200 | 199.3 | ×5.7 | | | |
P205 | 204.5 | ×8.4 | G80 | 79.4 | ×3.1 | G210 | 209.3 | ×5.7 | | | |
P209 | 208.5 | ×8.4 | G85 | 84.4 | ×3.1 | G220 | 219.3 | ×5.7 | | | |
P210 | 209.5 | ×8.4 | G90 | 89.4 | ×3.1 | G230 | 229.3 | ×5.7 | | | |
P215 | 214.5 | ×8.4 | G95 | 94.4 | ×3.1 | G240 | 239.3 | ×5.7 | | | |
P220 | 219.5 | ×8.4 | G100 | 99.4 | ×3.1 | G250 | 249.3 | ×5.7 | | | |
P225 | 224.5 | ×8.4 | G105 | 104.4 | ×3.1 | G260 | 259.3 | ×5.7 | | | |
P230 | 229.5 | ×8.4 | G110 | 109.4 | ×3.1 | G270 | 269.3 | ×5.7 | | | |
P235 | 234.5 | ×8.4 | G115 | 114.4 | ×3.1 | G280 | 279.3 | ×5.7 | | | |
P240 | 239.5 | ×8.4 | G120 | 119.4 | ×3.1 | G290 | 289.3 | ×5.7 | | | |
P245 | 244.5 | ×8.4 | G125 | 124.4 | ×3.1 | G300 | 299.3 | ×5.7 | | | |
P250 | 249.5 | ×8.4 | G130 | 129.4 | ×3.1 | | | | | | |
P255 | 254.5 | ×8.4 | G135 | 134.4 | ×3.1 | | | | | | |
P260 | 259.5 | ×8.4 | G140 | 139.4 | ×3.1 | | | | | | |
P265 | 264.5 | ×8.4 | G145 | 144.4 | ×3.1 | | | | | | |
P270 | 269.5 | ×8.4 | | | | | | | | | |
P275 | 274.5 | ×8.4 | | | | | | | | | |
P280 | 279.5 | ×8.4 | | | | | | | | | |
P285 | 284.5 | ×8.4 | | | | | | | | | |
P290 | 289.5 | ×8.4 | | | | | | | | | |
P295 | 294.5 | ×8.4 | | | | | | | | | |
P300 | 299.5 | ×8.4 | | | | | | | | | |
P315 | 314.5 | ×8.4 | | | | | | | | | |
P320 | 319.5 | ×8.4 | | | | | | | | | |
P335 | 334.5 | ×8.4 | | | | | | | | | |
P340 | 339.5 | ×8.4 | | | | | | | | | |
P355 | 354.5 | ×8.4 | | | | | | | | | |
P360 | 359.5 | ×8.4 | | | | | | | | | |
P375 | 374.5 | ×8.4 | | | | | | | | | |
P385 | 384.5 | ×8.4 | | | | | | | | | |
P400 | 399.5 | ×8.4 | | | | | | | | | |