尽管不限于此，这些离合器要求通常用于重型（8级）卡车。本SAE信息报告定义并讨论了离合器和相关部件配置，这些配置将成为未来SAE推荐实践的主题，以促进离合器安装和安装尺寸的标准化，以用于牵引式重型离合器。

Although not limited to, these clutch requirements are normally used on trucks considered as Heavy Duty (Class 8). This SAE Information Report defines and discusses clutch and related component configurations which will become the subject of future SAE Recommended Practices to promote standardization of clutch installations and mounting dimensions for use with pull-type heavy-duty clutches.