NEN ISO 21771 : 2007
Current
Current
The latest, up-to-date edition.
GEARS - CYLINDRICAL INVOLUTE GEARS AND GEAR PAIRS - CONCEPTS AND GEOMETRY
Published date
12-01-2013
Publisher
Defines the geometric concepts and parameters for cylindrical gears with involute helicoid tooth flanks. It also covers the concepts and parameters for cylindrical gear pairs with parallel axes and a constant gear ratio, which consist of cylindrical gears according to it.
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