Jis B 1702-1 Pdf May 2026
JIS B 1702-1 standard, titled "Cylindrical gears — ISO system of flank tolerance classification — Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth"
Understanding JIS B 1702-1: A Guide to Gear Accuracy Standards (PDF & Basics) jis b 1702-1 pdf
Tangential Composite Deviations
: Combined errors measured as the gear rotates. 📊 Understanding Accuracy Grades JIS B 1702-1 standard, titled "Cylindrical gears —
- Japanese Standards Association (JSA): The official website of the JSA provides access to various Japanese Industrial Standards, including Jis B 1702-1.
- International Organization for Standardization (ISO): The ISO website provides access to various international standards, including those related to gear tooth accuracy.
- Scope: The standard applies to spur and helical gears with a pitch circle diameter of up to 1000 mm.
- Normative References: The standard references other JIS standards and international standards, such as ISO 1328-1.
- Terms and Definitions: The standard defines various terms related to gears, including pitch circle, tooth thickness, and gear ratio.
- Gear Tooth Profiles: The standard specifies the gear tooth profiles, including the tooth shape, pressure angle, and gear ratio.
- Gear Accuracy: The standard defines the accuracy grades for gears, including the permissible deviations for tooth thickness, pitch, and profile.
- Inspection: The standard outlines the inspection methods for gears, including visual inspection, measurement of tooth thickness, and gear tooth profile inspection.
: The old system used Grades 0 through 9 (with 0 being the best). The new system (1702-1) aligns with ISO, where is far more precise than the old Grade 0. Calculation Japanese Standards Association (JSA) : The official website