Standard [CURRENT]
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This standard specifies properties for internal or external toothed cylindrical gears (spur gears) with involute toothing. These properties form the basis for communication, for instance between users and suppliers. A further aim is the categorization of these properties in conformity classes, amongst others, for unification of the data exchange. This standard has been prepared by NA 128-00-03-06 AK "Merkmallisten Verzahnungswerkzeuge" ("List of properties for gear-cutting tools") of the Product Property Standards Committee (NSM).
This document replaces DIN 4000-140:2005-04 .
This document has been modified by: DIN 4000-140/A1:2017-10