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。本测试程序描述了一种实验室测试悬架和转向系统球头螺栓和/或球窝总成功能特性的方法。本程序是SAE J 491b《球头螺柱尺寸建议操作规程》在车辆应用中的扩展。这些测试可以在单独的球头螺柱上进行，也可以在代表应用的完整整体组件上进行。本文件的目的是提供一种测试球头螺柱、球头螺柱和球座组件的统一方法，以确保零件满足应用的功能要求。

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.The test procedures describe a method to laboratory test suspension and steering system ball stud and/or socket assemblies for functional characteristics. This procedure is an extension of SAE J 491b recommended practice on dimensional recommendations for ball studs towards a vehicle application. The tests are conducted either on ball studs individually or on complete integral assemblies representing the application.The purpose of this document is to provide a uniform method of testing ball studs and ball stud and socket assemblies to ensure that the parts will meet functional requirements of the application.