Jis B 1702-1 Pdf Portable -

Technical Paper: Application of JIS B 1702-1 in Gear Accuracy Classification 1. Introduction

A key feature of JIS B 1702-1:2016 is its "flank tolerance classification system." Unlike its predecessors, this standard defines , numbered 1 to 11 (with 1 being the highest precision). These classes replace the older 0-8 grading system, and to distinguish them from the old grades, modern references often prefix them with "N" (e.g., Grade N8). jis b 1702-1 pdf