AGMA, ISO, and BS Gear Standards Part I - Pitting Resistance Ratings
The article "AGMA, ISO, and BS Gear Standards Part I - Pitting Resistance Ratings" appeared in the November/December 1990 issue of Gear Technology.
A study of AGMA 218, the draft ISO standard 6336, and BS 436: 1986 methods for rating gear tooth strength and surface durability for metallic spur and helical gears is presented. A comparison of the standards mainly focuses on fundamental formula and influence factors, such as the load distribution factor, geometry factor, and others. No attempt is made to qualify or judge the standards other than to comment on the facilities or lack of them in each standard reviewed. In Part I a comparison of pitting resistance ratings is made, and in the subsequent issue, Part II will deal with bending stress ratings and comparisons of designs.
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