1957-01-01

WHAT DO CALCULATED GEAR STRESSES MEAN? 570033

THIS paper utilizes the proposed formula for “the strength of gear teeth” developed by the Gear Rating Coordinating Committee of the American Gear Manufacturers Association to answer the question “What do calculated gear stresses mean?”
It is shown that meaningful gear-stress calculations use a formula developed upon a good basic theoretical foundation and used within the limitations of validity. The basic formula must be adjusted by measurable modifying factors evaluating load, accuracy, and materials. These modifying factors depend upon data secured by field experience and laboratory tests.
It can be concluded that gedr testing and theoretical analysis are complementary functions necessary for accurately calculating the stress in gear teeth.

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