AGMA-908-B89-美标-齿面强度设计技术规范

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AGMA-908-B89-美标-齿面强度设计技术规范INFORMATION SHEET
Geometry Factors for Determining the Pitting Resistance and Bending Strength of Spur，
Helical and Herringbone Gear Teeth
AGMA 908---B89
(Revision of AGMA 226.01 1984)
[Tables or other self---supporting sections may be quotedor extractedin theirentirety. Credit line should
read: ExtractedfromAGMAStandard908---B89， INFORMATIONSHEET，GeometryFactorsforDetermining
thePittingResistanceandBendingStrengthofSpur，HelicalandHerringboneGearTeeth，withthepermissionofthe
publisher， American Gear Manufacturers Association， 1500 King Street， Suite 201， Alexandria， Virginia
22314.]
AGMA standards are subject to constant improvement， revision or withdrawal as dictated by experience.
Any person who refers to any AGMA Technical Publication should determine that it is the latest information
available from the Association on the subject.
Suggestions for the improvement of this Standard will be welcome. They should be sent to the American
Gear Manufacturers Association， 1500 King Street， Suite 201， Alexandria， Virginia 22314.
ABSTRACT:
This Information Sheet gives the equations for calculating the pitting resistance geometry factor，I，for
externalandinternalspurandhelicalgears， andthe bending strengthgeometry factor，J， forexternal spurand
helical gears that are generated by rack---type tools (hobs， rack cutters or generating grinding wheels) or
pinion---typetools(shapercutters).TheInformationSheetalsoincludeschartswhichprovidegeometryfactors，
IandJ， for a range of typical gear sets and tooth forms.