本SAE标准规定了常用控油环的尺寸特征，该控油环有两个钢段（轨道），由一个扩张器/垫片隔开和膨胀。这些段的宽度从0.4毫米到0.6毫米不等。总成宽度范围为2.5至4.75毫米。4.75毫米的宽度相当于现有应用中的3/16。膨胀机的设计因活塞环制造商而异。在设计活塞环总成时，应考虑活塞环与活塞环环槽的总深度。本文件适用于往复式内燃机的125 mm以下的控油环。它也可用于在类似条件下工作的压缩机活塞环。

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.