scope:

Specifies the fundamental formulae for use in the tooth-bending stress calculation of straight and helical (skew), zerol- and spiral-bevel gears with a minimum rim thickness under the root ≥ 3,5 mmm. All load influences on tooth stress are included, insofar as they are the result of load transmitted by the gearing and able to be evaluiated quantitatively. (Stresses such as those caused by the shrink-fitting of gear rims, which are superposed on stresses due to tooth loading, are to be taken into consideration in the calculation of the tooth root stress ofp or the permissible tooth root stress ofp.)