, a Japanese Industrial Standard that serves as the gold standard for gear accuracy. If you’ve ever wondered why some machines purr with efficiency while others grind with noise, the answer usually lies within the tolerances defined in this document. What is JIS B 1702-1? At its core, JIS B 1702-1
JIS B 1702-1 specifies the accuracy requirements for individual cylindrical gears (external and internal) with involute teeth. It defines:
Before searching for papers, it is useful to know exactly what the standard covers to ensure you are looking at the right document. jis b 1702-1 pdf
It is important to note that JIS B 1702-1 represents a modernization of gear metrology. It effectively replaced the older standard .
JIS B 1702-1 is more than just a chart of numbers; it is the backbone of gear quality control in Japan. For engineers sourcing components from Japanese suppliers or manufacturing for the Japanese market, understanding the specific deviation allowances in this standard is mandatory to ensure mechanical reliability and minimize transmission noise. , a Japanese Industrial Standard that serves as
: You can buy the official English or Japanese version through the Japanese Standards Association (JSA) Webdesk .
: It establishes a system for classifying the accuracy of gear tooth flanks, moving away from older numerical grading systems (like the previous JIS B 1702:1976) toward the ISO-aligned system. Tolerances for tooth-to-tooth errors
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