AGMA 110.04-80 PDF

This standard provides nomenclature for general modes of gear failures. It classifies, identifies, and describes the most common types of failures and provides information which will in many cases enable the user to distinguish cause and effect, evaluate the degree or progression of wear, and in many instances make recommendations for appropriate remedial action.

The solution to many gear problems requires detailed investigation and analysis by specialists and is beyond the intent of this standard.