.O型圈中国国家标准.......................................................................................................................1法国国家标准（r）.............................................................................................................6日本国家标准.......................................................................................................................7英国国家标准（bs1516）.............................................................................................10美国国家标准（as568）................................................................................................11橡胶密封件原料特性.........................................................................................................14对不同种类固定密封或动密封应用场合，o型密封圈为设计者提供了一种既有效又经济的密封元件。o型圈是一种双向作用密封元件。安装时径向或轴向方面的初始压缩，赋予o型圈自身的初始密封能力。由系统压力而产生的密封力与初始密封力合成总的密封力，它随系统压力的提高而提高。o型圈在静密封场合，显示了突出的作用。然而，在动态的适当场合中，o型圈也常被应用，但它受到密封处的速度和压力的限制。中国国家标准内径=d1线径=d2单位（mm）GB3452.1-82尺寸（d1×d2）d1×d2(1.80)d1×d2(2.65)d1×d2(3.55)d1×d2(5.30)d1×d2(7.00).1.80×1.802.00×1.802.24×1.802.50×1.802.80×1.803.15×1.803.55×1.803.75×1.804.00×1.804.50×1.804.87×1.805.00×1.805.15×1.805.30×1.805.60×1.806.00×1.806.30×1.806.70×1.806.90×1.807.10×1.807.50×1.808.00×1.808.50×1.808.75×1.809.00×1.809.50×1.8010.00×1.8010.60×1.8011.20×1.8011.80×1.8012.50×1.8013.20×1.8014.00×1.8015.00×1.8016.00×1.8017.00×1.8018.00×1.807.10×2.657.50×2.658.00×2.658.50×2.658.75×2.659.00×2.659.50×2.6510.00×2.6510.60×2.6511.20×2.6511.80×2.6512.50×2.6513.20×2.6514.00×2.6515.00×2.6516.00×2.6517.00×2.6518.00×2.6519.00×2.6520.00×2.6521.20×2.6522.40×2.6523.60×2.6525.00×2.6525.80×2.6526.50×2.6518.00×3.5519.00×3.5520.00×3.5521.20×3.5522.40×3.5523.60×3.55.19.00×1.8020.00×1.8021.20×1.8022.40×1.8023.60×1.8025.00×1.8025.80×1.8026.50×1.8028.00×1.8030.00×1.8031.50×1.8032.50×1.8033.50×1.8034.50×1.8035.50×1.8036.50×1.8037.50×1.8038.70×1.8040.00×1.8041.20×1.8042.50×1.8043.70×1.8045.00×1.8046.20×1.8047.50×1.8048.70×1.8050.00×1.8028.00×2.6530.00×2.6531.50×2.6532.50×2.6533.50×2.6534.50×2.6535.50×2.6536.50×2.6537.50×2.6538.70×2.6540.00×2.6541.20×2.6542.50×2.6543.70×2.6545.00×2.6546.20×2.6547.50×2.6548.70×2.6550.00×2.6551.50×2.6553.00×2.6554.50×2.6556.00×2.6558.00×2.6560.00×2.6561.50×2.6563.00×2.6565.00×2.6567.00×2.6525.00×3.5525.30×3.5526.50×3.5528.00×3.5530.00×3.5531.50×3.5532.50×3.5533.50×3.5534.50×3.5535.50×3.5536.50×3.5537.50×3.5538.70×3.5540.00×3.5541.20×3.5542.50×3.5543.70×3.5545.00×3.5546.20×3.5547.50×3.5548.70×3.5550.00×3.5551.50×3.5553.00×3.5554.50×3.5556.00×3.5558.00×3.5560.00×3.5561.50×3.5563.00×3.5565.00×3.5567.00×3.5540.00×5.3041.20×5.3042.50×5.3043.70×5.3045.00×5.3046.20×5.3047.50×5.3048.70×5.3050.00×5.3051.50×5.3053.00×5.3054.50×5.3056.00×5.3058.00×5.3060.00×5.3061.50×5.3063.00×5.3065.00×5.3067.00×5.30d1×d2(1.80)d1×d2(2.65)d1×d2(3.55)d1×d2(5.30)d1×d2(7.00)69.0×2.6571.0×2.6573.0×2.6569.0×3.5571.0×3.5573.0×3.5569.0×5.3071.0×5.3073.0×5.30.75.0×2.6580.0×2.6585.0×...
