本文件已被宣布为“稳定”，不再接受货币定期审查。用户负责验证参考资料和持续适用性或技术要求。新技术可能存在。本航空航天推荐规程（ARP）规定了平衡机的要求，使其适用于主题类别的工作。它是为软轴承平衡机开发的，但也可用于硬轴承机器，直到ARP4048针对该类型机器发布。尤其不应认为，本ARP仅检查平衡机的能力，以指示指定试验转子中正确的动态或静态/耦合不平衡量。 这种转子通常用于测试平衡机，以提供精确控制和可比较的测试结果。可能需要对特定机器进行进一步测试，以评估平衡不同重量和配置的转子、带有舷外重心和/或校正平面的转子，以及具有干扰特征的转子（例如受到叶片散射、风阻等影响的转子）的能力。

This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.This Aerospace Recommended Practice (ARP) specifies the requirements of balancing machines that make them suitable for the subject class of work. It was developed for soft-bearing balancing machines but may also be used for hard-bearing machines until ARP4048 is issued for that type of machine. Particular not should be taken that this ARP examines only the capability of a balancing machine to indicate the correct amount of dynamic or static/couple unbalance in specified proving rotors. Such rotors are commonly used for testing balancing machines to provide precisely controlled and comparable test results. Further tests of a particular machine may be necessary to assess the capability to balance rotors of different weights and configurations, rotors with outboard c.g. and/or correction planes, and those with disturbance causing features, such as rotors subject blade scatter, windage, etc.