Historical
ANSI/AGMA 1003-G93 (R1999)
Tooth Proportions for Fine-Pitch Spur and Helical Gearing
Includes spur and helical gearing of 20 through 120 diametral pitch with tooth proportions of 20 degree pressure angle and having 7 or more teeth. Tooth proportions shown may also be suitable for gear designs of finer than 120 diametral pitch.
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American Gear Manufacturers Association [agma]
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