Microsoft Word C046474e doc ICS 21 200 Ref No ISO 6336 6 2006/Cor 1 2007(E) © ISO 2007 – All rights reserved Published in Switzerland INTERNATIONAL STANDARD ISO 6336 6 2006 TECHNICAL CORRIGENDUM 1 Pub[.]
INTERNATIONAL STANDARD ISO 6336-6:2006 TECHNICAL CORRIGENDUM Published 2007-08-01 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION Calculation of load capacity of spur and helical gears — Part 6: Calculation of service life under variable load TECHNICAL CORRIGENDUM Calcul de la capacité de charge des engrenages cylindriques dentures droite et hélicoïdale — Partie 6: Calcul de la durée de vie en service sous charge variable RECTIFICATIF TECHNIQUE Technical Corrigendum to ISO 6336-6:2006 was prepared by Technical Committee ISO/TC 60, Gears, Subcommittee SC 2, Gear capacity calculation Page 20 Clause C.6 Replace the equations with the following: ICS 21.200 © ISO 2007 – All rights reserved Published in Switzerland Ref No ISO 6336-6:2006/Cor.1:2007(E) ISO 6336-6:2006/Cor.1:2007(E) ⎯ For contact stress: Z NTi = σ Hi σ HPi ⎛Z ⎞ N i = ⎜ NTi ⎟ ⎝ 1,6 ⎠ Ui = ⎯ × 10 (if Z NTi > 1), N i = ( Z NTi ) −32,601229 26 × × 10 (if Z NTi u 1) ni N ii For bending stress: YNTi = σ Fi σ FPi ⎛Y ⎞ N i = ⎜ NTi ⎟ ⎝ 2,5 ⎠ Ui = −13,222 469 −8,737 249 08 × 10 (if YNTi W 1), N i = (YNTi ) −49,912 503 38 × × 10 (if YNTi < 1) ni N ii © ISO 2007 – All rights reserved