This part of the standard focuses on the definitions and allowable values of deviations related to the flanks of individual gear teeth. 日本規格協会 JSA GROUP Webdesk Accuracy Grades : It defines 13 accuracy grades, numbered 0 through 12 represents the highest precision and the lowest.
For further technical details or to purchase the full standard, you can visit the Japanese Standards Association (JSA).
This article serves as your definitive resource on JIS B 1702-1. We will explore what this standard covers, how it differs from ISO and AGMA standards, where to legally access the PDF, and how to implement its requirements in your manufacturing or inspection process.
: Using outdated or incorrect tables from third-party websites can lead to non-conforming gears. Always refer to the original JIS B 1702-1 PDF for official tolerance values. jis b 1702-1 pdf
: Defines allowable values for single pitch deviation, pitch variation, and cumulative pitch deviation.
Once you obtain the official document, you will encounter specific notation. Here is a quick reference guide:
Searching for a is often the start of a deeper engineering journey. While the digital document provides the raw data of tolerances and formulas, true mastery comes from understanding how to apply those numbers to real-world gear inspection. This part of the standard focuses on the
The standard is the Japanese Industrial Standard for the ISO system of flank tolerance classification for cylindrical gears. It provides the technical framework for measuring and classifying the accuracy of gear teeth flanks. Core Features of JIS B 1702-1
A: Yes, for most practical purposes, because JIS B 1702-1 is technically identical. However, if your contract explicitly calls out JIS, use the JIS document.
: Deviation in the tooth alignment relative to the gear axis. Application Scope This article serves as your definitive resource on
: Accuracy is determined by measuring several key tooth flank deviations: Pitch Error
For example, to find the permissible for a grade 6 gear with a reference diameter of 100 mm and module 2 mm, the standard provides a formula or a look-up table. The general principle is: