该SAE标准相当于ISO标准6627 TR。 如存在差异，见附录A及相关依据。 该SAE标准规定了常用的油控制环的尺寸特征，所述油控制环具有由一个钢膨胀器/间隔件分开并膨胀的两个钢段(轨道)。 这些段的宽度从0.4毫米到0.6毫米不等。组装宽度范围为2.5至4.75毫米。4.75毫米的宽度相当于现有的3/16英寸应用。膨胀机的设计会因活塞环制造商而有很大差异。 在设计这些油环时，应考虑总周向偏转和活塞槽深度，以优化油环组件与活塞槽的配合。 本文件适用于往复式内燃机125 mm以上的油控制环。它也可用于在类似条件下工作的压缩机的活塞环。

This SAE Standard is equivalent to ISO Standard 6627 TR. Differences, where they exist, are shown in Appendix A with associated rationale. This SAE Standard specifies the dimensional features of commonly used oil control rings having two steel segments (rails) separated and expanded by one steel expander/spacer. The segments vary in width from 0.4 to 0.6 mm. The assembly width ranges from 2.5 to 4.75 mm. The 4.75 mm width is equivalent to existing 3/16 in applications. Expander design will vary considerably with piston ring manufacturer. The total circumferential deflection and the piston groove depth should be considered when designing these oil rings to optimize the fit of the ring assembly into the piston groove. This document applies to oil control rings up through 125 mm for reciprocating internal combustion engines. It may also be used for piston rings of compressors working under similar conditions.