
ISO/TR 6336-30:2022(E)
Foreword ........................................................................................................................................................................................................................................ iv
Introduction .................................................................................................................................................................................................................................v
1 Scope ................................................................................................................................................................................................................................. 1
2 Normative references ..................................................................................................................................................................................... 1
3 Terms,definitions,symbolsandunits ......................................................................................................................................... 1
...................................................................................................................................................................... 1
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4 Worked examples ................................................................................................................................................................................................ 6
........................................................................................................................................... ................................................................ 6
........................................................................................................................................................................ 6
fpb ........................................................................................................... 6
yαKHα
and KFα ......................................................................................................................................................................................... 7
cγ ........................................................................................................................... 7
ZL Zv and ZR ZW and size ZX
................................................................................................................................................................. 7
4.2.5 Calculation of the permissible contact stress in the limited life range (ZN
and ZNT) ...................................................................................................................................................................................... 7
ZW .................................................................................................... 8
4.2.7 Determination of Rz......................................................................................................................................................... 8
4.2.8 Facewidth for calculations involving double helical gears ........................................................... 8
4.2.9 Calculation of εβ for double helical gears ...................................................................................................... 8
4.2.10 Calculation of fHβ5 and fHβ .......................................................................................................................................... 8
fHβ5 and fHβ for double helical gears.......................................................................... 8
df ............................................................................................................................. 8
4.2.13 Calculations for internal gears............................................................................................................................... 8
4.2.14 Rounding of values ........................................................................................................................................................... 8
4.2.15 Deviations of values ......................................................................................................................................................... 8
4.2.16 Nominal and generated values............................................................................................................................... 9
4.2.17 ISO 1328-1:2013 .................................................................................................................................................................. 9
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hardened cast gear ........................................................................................................................................................................... 26
................................................................................... 30
......................................................... 34
.......................................................................................... 38
Annex A (informative) Example 1 detailed calculation ................................................................................................................ 43
Bibliography ............................................................................................................................................................................................................................. 63
iii
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