Taiwan's imports of O-ring 45 degrees parting line American standard AS-568 O-ring imported rubber O-ring --- American Standard (AS-568 O-ing Sizes) model diameter × diameter O-ring model diameter × diameter O-ring type O-ring inner diameter × diameter O-ring type O-ring inner diameter × diameter O-ring AS568-001O ring 0.74 × 1.02 AS568-102 1.24 × 2.62 AS568-157 113.97 × 2.62 AS568-233 72.62 × 3.53 AS568-002 1.07 × 1.27 AS568-103 2.06 × 2.62 AS568-158 120.32 × 2.62 AS568-234 75.79 × 3.53 AS568-003 1.42 × 1.52 AS568-104 2.84 × 2.62 AS568-159 126.67 × 2.62 AS568-235 78.97 × 3.53 AS568-004 1.78 × 1.78 AS568-105 3.63 × 2.62 AS568-160 133.02 × 2.62 AS568-236 82.14 × 3.53O ring AS568-005 2.57 × 1.78 AS568-106 4.42 × 2.62 AS568-161 139.37 × 2.62 AS568-237 85.32 × 3.53O ring AS568-006 2.90 × 1.78 AS568-107 5.23 × 2.62 AS568-162 145.72 × 2.62 AS568-238 85.32 × 3.53O-ring seal top Wall Technology Co., Ltd. of Taiwan's imports of oil supply nbr of O-ring groove design: in the case of sports use, the use of margin compression would seal O-ring when the sliding resistance, compression set have a huge impact, and therefore must be controlled within a necessary minimum. When used at sports, especially speed, poor lubrication conditions of the case, set the margin compression set is much smaller than the average movement with O-ring. Necessity choose to import oil nbr rubber O-ring material: O type ring rubber essential characteristic means good flexibility, good compression set resistance, good abrasion resistance, excellent heat resistance and liquid and gas will not be used for intrusion-resistant, longer service life and so on. However, because these materials are in line with all the features No, it is in accordance with a variety of uses, it is necessary to choose according to their use of different materials for use.