PD ISO/TS 6336-20:2017 Calculation of load capacity of spur and helical gears Calculation of scuffing load capacity (also applicable to bevel and hypoid gears). Flash temperature method

Gear drives
Thermal properties of materials
Bevel gears
High-temperature testing
Loading
Spur gears
Hypoid gears
Thermal-shock tests
Thermal testing
Mechanical testing
Load capacity

Link: PD ISO/TS 6336-20:2017 Calculation of load capacity of spur and helical gears Calculation of scuffing load capacity (also applicable to bevel and hypoid gears). Flash temperature method
Source: BSI Standards