筒式液压制动分泵橡胶罩

[中文适用范围]： 该 SAE 标准涵盖用作鼓式车轮制动驱动缸端盖的模制橡胶套，以防止灰尘和湿气进入，否则可能导致腐蚀并损害车轮制动操作。该文件包括在规定条件下对普通型和插入型制动缸防尘罩进行的性能测试，但不包括与橡胶化合物的化学成分、拉伸强度或伸长率相关的要求。此外，它不涵盖橡胶与使用插入件的插入件材料的粘合强度。这些靴子中使用的橡胶材料被归类为适合在 -40 至 +120 摄氏度的温度范围内操作？摄氏度（-40 至 +248 华氏度 ?.6 华氏度）。 [外文原描述]： This SAE Standard covers molded rubber boots used as end closures on drum-type wheel brake actuating cylinders to prevent the entrance of dirt and moisture, which could cause corrosion and otherwise impair wheel brake operation.The document includes performance tests of brake cylinder boots of both plain and insert types under specified conditions and does not include requirements relating to chemical composition, tensile strength, or elongation of the rubber compound. Further, it does not cover the strength of the adhesion of rubber to the insert material where an insert is used.The rubber material used in these boots is classified as suitable for operation in a temperature range of −40 to +120 °C ± 2 °C (−40 to + 248 °F ± 3.6 °F).Cross Reference: ASTMD1149,ASTMD1415,ASTMD2240,ASTMD573,J1601