Codes & Standards - Purchase
This document includes procedures based on testing and theoretical studies such as those of Hirt, Strasser and Brossmann. The results are in good agreement with other methods (References , ,  and ). The given formulae are valid for spur and helical gears with tooth profiles in accordance with the basic rack standardized in ISO 53. They can also be used for teeth conjugate to other basic racks if the virtual contact ratio ean is less than 2,5.
The load capacity determined on the basis of permissible bending stress is termed tooth bending strength. The results are in good agreement with other methods for the range, as indicated in the scope of ISO 6336-1.
If this scope does not apply, refer to ISO 6336-1:2019, Clause 4.