ISO/TR 6336-30:2022
Calculation of load capacity of spur and helical gears — Part 30: Calculation examples for the application of ISO 6336 parts 1,2,3,5
This document presents worked examples that apply exclusively the approximation methods for the determination of specific influential factors, such as the dynamic factor, Kv, and the load distributions factors KHα, KHβ, etc., where full analytical calculation procedures are provided within the referenced parts of ISO 6336.
Worked examples covering the more advanced analysis techniques and methods are not applicable to this document.
The example calculations presented in this document are provided for guidance on the application of ISO 6336-1:2019, ISO 6336-2:2019, ISO 6336-3:2019 and ISO 6336-5:
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and units
3.1 Terms and definitions
3.2 Symbols and units
4 Worked examples
4.1 General
4.2 Qualifying comments
4.2.1 Calculation of base pitch deviation, fpb
4.2.2 Calculation of running-in allowance, yα, for the transverse load factors KHα and KFα
4.2.3 Calculation of mesh stiffness, cγ
4.2.4 Application of lubricant film ZL, Zv and ZR, hardness ZW and size ZX influence factors
4.2.5 Calculation of the permissible contact stress in the limited life range (ZN and ZNT)
4.2.6 Application of work hardening factor, ZW
4.2.7 Determination of Rz
4.2.8 Facewidth for calculations involving double helical gears
4.2.9 Calculation of εβ for double helical gears
4.2.10 Calculation of fHβ5 and fHβ
4.2.11 Helix tolerance fHβ5 and fHβ for double helical gears
4.2.12 Calculation of root diameter, df
4.2.13 Calculations for internal gears
4.2.14 Rounding of values
4.2.15 Deviations of values
4.2.16 Nominal and generated values
4.2.17 ISO 1328-1:2013
4.2.18 Values for reference only
4.3 Example 1: Single helical case carburized gear pair
4.4 Example 2: Single helical through-hardened gear pair
4.5 Example 3: Spur through-hardened gear pair
4.6 Example 4: Spur case carburized gear pair
4.7 Example 5: Spur gear pair with an induction hardened pinion and through-hardened cast gear
4.8 Example 6: Spur internal through-hardened gear pair
4.9 Example 7: Double helical through-hardened wrought gear pair
4.10 Example 8: Single helical case carburized gear pair
Annex A (informative) Example 1 detailed calculation
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and units
3.1 Terms and definitions
3.2 Symbols and units
4 Worked examples
4.1 General
4.2 Qualifying comments
4.2.1 Calculation of base pitch deviation, fpb
4.2.2 Calculation of running-in allowance, yα, for the transverse load factors KHα and KFα
4.2.3 Calculation of mesh stiffness, cγ
4.2.4 Application of lubricant film ZL, Zv and ZR, hardness ZW and size ZX influence factors
4.2.5 Calculation of the permissible contact stress in the limited life range (ZN and ZNT)
4.2.6 Application of work hardening factor, ZW
4.2.7 Determination of Rz
4.2.8 Facewidth for calculations involving double helical gears
4.2.9 Calculation of εβ for double helical gears
4.2.10 Calculation of fHβ5 and fHβ
4.2.11 Helix tolerance fHβ5 and fHβ for double helical gears
4.2.12 Calculation of root diameter, df
4.2.13 Calculations for internal gears
4.2.14 Rounding of values
4.2.15 Deviations of values
4.2.16 Nominal and generated values
4.2.17 ISO 1328-1:2013
4.2.18 Values for reference only
4.3 Example 1: Single helical case carburized gear pair
4.4 Example 2: Single helical through-hardened gear pair
4.5 Example 3: Spur through-hardened gear pair
4.6 Example 4: Spur case carburized gear pair
4.7 Example 5: Spur gear pair with an induction hardened pinion and through-hardened cast gear
4.8 Example 6: Spur internal through-hardened gear pair
4.9 Example 7: Double helical through-hardened wrought gear pair
4.10 Example 8: Single helical case carburized gear pair
Annex A (informative) Example 1 detailed calculation
Bibliography