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SAE推荐实施规程旨在作为标准实施规程的指南，但可能会经常更改，以跟上经验和技术进步的步伐。在考虑使用时，应牢记这一点。SAE 2号摩擦试验机用于评估带自动变速器油液的自动变速器盘式离合器的摩擦特性。 它还可用于对湿摩擦系统进行耐久性测试。本文件供供应商和最终用户共同使用，以确定试验机的最低要求，以便对湿摩擦材料系统性能进行客观比较。

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 SAE Recommended Practice is intended as a guide toward implementation of a standard practice but may be subject to frequent change to keep pace with experience and technical advances. This should be kept in mind when considering its use.The SAE No. 2 Friction Test Machine is used to evaluate the friction characteristics of automatic transmission plate clutch with automotive transmission fluids. It can also be used to conduct durability tests on wet friction systems.This document is intended for common use by both suppliers and end users to deine minimum test machine requirements to allow objective comparisons for wet friction material system performance.