本标准涵盖了在环境温度范围-65至+160mDF（-54至+71MD）、高循环速度下使用的球面、调心、自润滑轴承的要求。本标准的范围是为源控制图纸定义和控制的直升机滑动轴承提供衬垫系统鉴定程序。一旦衬里系统合格，在应用条件下对源控轴承进行进一步测试。

This standard covers the requirements for spherical, sel-aligning, self-lubricating bearings which are for use in the ambient temperature range -65 to +160\mDF (-54 to +71 \MD) at high cyclic speeds. The scope of the standard is to provide a liner system qualification procedure for helicopter sliding bearings defined and controlled by source control drawings. Once a liner system is qualified the source-controlled bearings are further tested under application conditions.