Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and units
  3.1 Terms and definitions
  3.2 Symbols and units
4 Field of application
  4.1 Scuffing damage
  4.2 Integral temperature criterion
5 Influence factors
  5.1 Mean coefficient of friction
  5.2 Run-in factor
  5.3 Thermal flash factor
  5.4 Pressure angle factor
6 Calculation
  6.1 Cylindrical gears
      6.1.1 Scuffing safety factor
      6.1.2 Permissible integral temperature
      6.1.3 Integral temperature
      6.1.4 Flash temperature at pinion tooth tip
      6.1.5 Bulk temperature
      6.1.6 Mean coefficient of friction
      6.1.7 Run-in factor
      6.1.8 Thermal flash factor
      6.1.9 Pressure angle factor
      6.1.10 Geometry factor at tip of pinion
      6.1.11 Approach factor
      6.1.12 Tip relief factor
      6.1.13 Contact ratio factor
  6.2 Bevel gears
      6.2.1 Scuffing safety factor
      6.2.2 Permissible integral temperature
      6.2.3 Integral temperature
      6.2.4 Flash temperature at pinion tooth tip
      6.2.5 Bulk temperature
      6.2.6 Mean coefficient of friction
      6.2.7 Run-in factor
      6.2.8 Thermal flash factor
      6.2.9 Pressure angle factor
      6.2.10 Geometry factor at tip of pinion
      6.2.11 Approach factor
      6.2.12 Tip relief factor
      6.2.13 Contact ratio factor
  6.3 Hypoid gears
      6.3.1 Scuffing safety factor
      6.3.2 Permissible integral temperature
      6.3.3 Integral temperature
      6.3.4 Bulk temperature
      6.3.5 Mean coefficient of friction
      6.3.6 Run-in factor
      6.3.7 Geometry factor
      6.3.8 Approach factor
      6.3.9 Tip relief factor
      6.3.10 Contact ratio factor
      6.3.11 Calculation of virtual crossed axes
             helical gears
  6.4 Scuffing integral temperature
      6.4.1 Scuffing integral temperature
      6.4.2 Relative welding factor
Annex A (informative) Examples
Annex B (informative) Contact-time-dependent scuffing
                      temperature
Bibliography