This information sheet recommends material case properties, microstructure, processing procedures and other critical parameters for carburized aerospace gears.
This information sheet is for carburized aerospace gearing and does not apply to gears used in other industries.
[The foreword, footnotes and annexes, if any, in this document are provided for informational purposes only and are not to be construed as a part of AGMA Information Sheet 926-C99, Recommended Practice for Carburized Aerospace Gearing.]
AGMA Standard 246.02A, Practice for Carburized Aerospace Gearing, dated June, 1983, was prepared by the Metallurgy and Materials Committee and was designed to be a guide to manufacturers who make carburized gears to the high quality standards required of gears used in aerospace applications.
AGMA 926-C99 has been updated by the Aerospace Gearing Committee and replaces AGMA 246.02A, and includes references to the latest standards of other standard setting bodies including SAE/AMS and AISI. Also, reference is made to modern steel making techniques and carburizing methods which produce gears to three classes of quality.
AGMA 926-C99 was approved by the AGMA Technical Division Executive Committee on May 20, 1999.
Reaffirmed November 2017
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