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PD ISO/TS 6336-21:2022 Calculation of load capacity of spur and helical gears - Calculation of scuffing load capacity. Integral temperature method, 2022
- National foreword
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- 3.1 Terms and definitions
- 3.2 Symbols and units
- 4 Field of application [Go to Page]
- 4.1 General
- 4.2 Scuffing damage
- 4.3 Integral temperature criterion
- 5 Influence factors [Go to Page]
- 5.1 Mean coefficient of friction, μmC
- 5.2 Run-in factor, XE
- 5.3 Thermal flash factor, XM
- 5.4 Pressure angle factor, Xαβ
- 6 Calculation [Go to Page]
- 6.1 Cylindrical gears [Go to Page]
- 6.1.1 General
- 6.1.2 Scuffing safety factor, SintS
- 6.1.3 Permissible integral temperature, ϑintP
- 6.1.4 Integral temperature, ϑint
- 6.1.5 Flash temperature at pinion tooth tip, ϑflaE
- 6.1.6 Bulk temperature, ϑM
- 6.1.7 Mean coefficient of friction, μmC
- 6.1.8 Run-in factor, XE
- 6.1.9 Thermal flash factor, XM
- 6.1.10 Pressure angle factor, Xαβ
- 6.1.11 Geometry factor at tip of pinion, XBE
- 6.1.12 Approach factor, XQ
- 6.1.13 Tip relief factor, XCa
- 6.1.14 Contact ratio factor, Xε
- 6.2 Scuffing integral temperature [Go to Page]
- 6.2.1 General
- 6.2.2 Scuffing integral temperature, ϑintS
- 6.2.3 Relative welding factor, XWrelT
- Annex A (informative) Examples
- Annex B (informative) Contact-time-dependent scuffing temperature
- Bibliography [Go to Page]
