SAE International
SAE Standards Works
SAE International
Contact Us | Help | Shopping Cart
SAE Login

J379_200908 - Gogan Hardness of Brake Lining

Details
Document Number: J379_200908
Revision Number:
Title
Gogan Hardness of Brake Lining
Scope
Gogan hardness, a nondestructive (a penetrator causes shallow surface deformation) method of measuring compressibility, is used as a quality control check of the consistency of formulation and processing of brake lining. Gogan hardness alone shows nothing about a lining's ability to develop friction or to resist fade when used as a friction element in brakes. Gogan hardness varies with formulation, contour, and thickness of the lining. The Gogan hardness and the range of Gogan hardness are peculiar to each formulation, thickness, and contour and, therefore, the acceptable values or range must be established for each formulation and part configuration by the manufacturer.
Recent Activity
Date Type