If you are currently using a scanned PDF from 1998, beware of these changes in the current revision (JIS B 1702-1:2015):
: The standard includes informative annexes for advanced analysis, such as: Zone-based tolerance evaluation (Annex A). jis b 1702-1 pdf
: Variations from the theoretical involute curve, which can cause noise and vibration. If you are currently using a scanned PDF
The is a Japanese Industrial Standard that defines the accuracy and tolerance classification for cylindrical gears (spur and helical gears). It was last revised in 2016 and is technically aligned with the international standard ISO 1328-1 . 🔩 Core Purpose jis b 1702-1 pdf