Codes & Standards - Purchase
The given formulae are valid for cylindrical 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 where the actual transverse contact ratio is less than ean = 2,5. The results are in good agreement with other methods (see References , , , ).
These formulae cannot be directly applied for the assessment of types of gear tooth surface damage such as plastic yielding, scratching, scuffing and so on, other than that described in Clause 4.
The load capacity determined by way of the permissible contact stress is called the surface load capacity or surface durability.
If this scope does not apply, refer to ISO 6336-1:2019, Clause 4.