John B. Amendola is an executive officer and chairman of the board and Chairman of the Board of Artec Machine Systems where he has been working for 50 years. Prior employment was with Western Gear, Texaco & Boeing Co. where he operated a full load four square locked torque test stand for helicopter gears. He is currently an active member of AGMA Helical Gear Rating & Lubrication Committees, active chairman of AGMA Enclosed High Speed Units Committee, a member of the US TAG to ISO TC60 and a member of the American Petroleum Institute 613-6 Standards Committee. John holds a Bachelor of Mechanical Engineering from Villanova University and a Master of Science degree in Mechanical Engineering from (NYU) Brooklyn Polytechnic Institute. Amendola is a recipient of the AGMA TDEC Award.
This investigation reviews calculations using ISO/TS 6336-22 Method A and Method B, comparing the calculations against field results. Extensive reviews were made of geometry, surface roughness, load conditions, and lubricant conditions to best understand the influences of micropitting on each example and the applicability of the calculations to the results.
The objective of this paper is to improve the methodology for determining the tooth flank temperature. Two methods are proposed for assessing scuffing risk when applying AGMA 925 for high-speed gears. Both methods provide similar results.
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