Jis B 7420 Pdf |best| May 2026

The official English translation of is maintained and published by the Japanese Standards Association (JSA) . JIS B 7420:1997 - Accuris Standards Store

Plain limit gauges. Publication date 1997-03-31 Original language English. 120.70 EUR VAT included. 112.80 EUR VAT excluded. JIS B 7420:1997 Plain limit gauges - Intertek Inform jis b 7420 pdf

: Primarily used for cylindrical holes and shafts that satisfy the "conditions of envelope" (maximum material condition). Key Technical Specifications The official English translation of is maintained and

: Gauges are typically constructed from durable materials like alloy tool steel (e.g., SKS31) with high hardness (HRC 58–64) to resist wear during repeated inspections. jis b 7420 pdf

The standard provides specific formulae (found in Table 5 of the document) and attached tables to calculate the exact size of a limit gauge based on the workpiece's nominal size and tolerance grade. When dimensions reach five or more decimal places, they are rounded to four places according to . How to Access the JIS B 7420 PDF

This standard applies to plain limit gauges and reference disks for gap gauges intended for workpieces with: : Dimensions not exceeding 500 mm .

: The standard defines how to determine if a part is acceptable. A GO gauge should pass through or over the workpiece, while a NOT GO gauge should not.