parker挡圈的标准材质为N300-90(一种丁晴橡胶NBR为基质的合成橡胶,硬度为邵氏A90°)选用O型圈时必须考虑硬度,对于大多数密封运用场合,邵氏硬度A70°的材质便可以获得***佳的性能.一般来讲在此硬度范围内的O型圈,低压密封性较好.但在高压时他们比硬度高的橡胶件更容易被挤出.但硬度高的材料不易跟随密封表面的不平度或变形,较硬的O型圈在低压时也更容易***,硬度高的O型圈,不使用与运动条件下密封.低硬度的O型圈的耐磨性加上抗高挤压硬材料的挡圈.就容易获得很好低压密封性能.parker密封件上海经销商2016年搬迁至昆山花桥镇,nsknok@parker挡圈内径*壁宽)壁厚parker代码尺寸(d*W*T)8-0042.44*1.358-0053.23*1.358-0063.56*1.358-0074.34*1.358-0085.13*1.358-0095.94*1.358-0106.73*1.358-0118.31*1.358-0129.91*1.358-01311.56*1.358-01413.16*1.358-01514.73*1.358-01616.33*1.358-01717.91*1.358-01819.51*1.358-01921.08*1.358-02022.68*1.358-02124.26*1.35TEL-0512-36832562TEL-0512-368325638-02225.86*1.358-02327.43*1.358-02429.03*1.358-02530.61*1.358-02632.21*1.358-02733.78*1.358-02835.38*1.358-02938.56*1.358-03041.73*1.358-03144.91*1.358-03248.08*1.358-03351.26*1.358-03454.43*1.358-03557.61*1.358-03660.78*1.358-03763.96*1.358-03867.13*1.358-03970.31*1.358-04073.48*1.358-04176.66*1.358-04283.01*1.358-04389.36*1.358-04495.71*1.358-045102.06*1.358-046108.41*1.358-047114.76*1.358-048121.11*1.358-049127.46*1.358-050133.81*1.35Q:584495835Q:2426651639)