ISO 21771 : 2007(R2016)现行
GEARS - CYLINDRICAL INVOLUTE GEARS AND GEAR PAIRS - CONCEPTS AND GEOMETRY
出版：International Organization for Standardization
专家解读视频
Specifies the geometric concepts and parameters for cylindrical gears with involute helicoid tooth flanks.
DIN ISO 21771 : 2014 - Identical
DIN ISO 21771 E : 2014 - Identical
NEN ISO 21771 : 2007 - Identical
BS ISO 21771 : 2007 - Identical
DIN ISO 21771 E : 2014 - Identical
BS ISO 21771 : 2007 - Identical
DIN ISO 21771 : 2014 - Identical
NEN ISO 21771 : 2007 - Identical
