AGMA 90FTM4 PDF

In the first part, this document describes all the types and aspects of wear which can occur on the gear teeth in operation, with causes and explanations concerning their appearance. For each type of wear, the possible evolution and the limits which should not be passed to avoid a failure or severe damage to the tooth, thus reducing the life of the gear, are clearly specified. Aspects of wear types which can be considered as normal, medium or progressive are also described and solutions are presented as a guide for wear stabilizing.