Jis B 1702-1 Pdf __hot__ -

between the old JIS grades and the current ISO-aligned classes?

You can find further technical details and specific tables in the following resources:

represents the highest imaginable master-gear precision.

When you see a gear product listed with a specification like "Accuracy Class JIS N9 (JIS B 1702-1:1998)," it tells you the manufacturer has measured the gear against the defined parameters of the standard and classified it as meeting N9-level precision. A higher grade like N7 indicates a more precise, likely more expensive part, suitable for high-performance applications. A lower grade like N12 is typical for less critical, lower-cost applications. jis b 1702-1 pdf

It focuses on the , establishing how much a manufactured gear can deviate from its theoretical, perfect form. This standard is vital for manufacturers ensuring that gears function smoothly, quietly, and with high efficiency in machines. Key Aspects of JIS B 1702-1 Applicability: Applies to spur and helical gears.

This measures the difference between the actual tooth profile and the design profile (involute). 3. Helix Deviation (Lead Deviation - fFf sub cap F

Applies to individual spur and helical gears (not gear pairs). between the old JIS grades and the current

: The 1998 revision and the current 2016 version were specifically designed to match ISO system of flank tolerance to facilitate international trade. 4. Technical Resources and Compliance

Thanks to the major revision in 1998, JIS B 1702-1:1998 is now largely equivalent to . This harmonization allows engineers to specify JIS or ISO grades more flexibly, as the technical requirements for the measurement and tolerances of individual tooth flank deviations (like profile and helix) are fundamentally aligned.

The difference between the actual and theoretical tooth profile. Helix Deviation ( cap F sub beta A higher grade like N7 indicates a more

However, accessing this standard requires caution.

, is the Japanese Industrial Standard that defines the accuracy and quality levels for cylindrical gears. Core Overview