SAE J1646-2006 PDF

Scope: This SAE Recommended Practice defines the principal terms and equations pertaining to automotive automatic transmission clutch plate@ band@ or other wet-friction systems. The terms apply directly to friction-system testing as is typically conducted on inertia-stop test equipment. Some terms can be directly applied to the analysis of friction in the transmission or brake assembly and other friction-test equipment.The glossary presents terms used to describe the set-up@ testing@ and results of tests as shown in Figure 1@ which were taken on a clutch SAE No. 2 machine.The glossary is intended to provide a collection of definitions in the hope of eliminating confusion in development and their application to passenger cars and trucks.This document focuses on the terminology of friction-system testing. References for this type of testing are shown in Section 2.Rationale5 year review.

SAE J1646-2006 history

2012 SAE J1646-2012 Glossary of Terms - Lubricated Friction Systems@ Recommended Practice (July 1996)
2006 SAE J1646-2006 Glossary of TermsLubricated Friction Systems
1996 SAE J1646-1996 Glossary of Terms - Lubricated Friction Systems, Recommended Practice July 1996