Jis B 1702-1 Pdf [portable] May 2026

This is a detailed write-up regarding the document “JIS B 1702-1” and the search for its PDF. This standard is critical for mechanical engineers, gear manufacturers, and quality control professionals working with Japanese industrial equipment or international specifications.

How to Read the JIS B 1702-1 PDF (Essential Sections)

Once you acquire the official PDF, do not read it cover to cover. Skip to these critical tables:

4.2 Accuracy Grades

  • Grade 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
  • Grade 6 is typical for general-purpose precision gears.
  • Grade 4–5 for high-speed or servo applications.
  • Grade 8–10 for rough power transmission.

4.4 Inspection Principles

  • Requirement for 3D coordinate measurement or dedicated gear testers.
  • Use of master gears or analytical measurement.
  • Specification of evaluation length and averaging methods.

Summary Recommendation

If you cannot purchase the standard, the most useful paper to read is any comparative analysis between ISO 6336 and JIS B 1702-1.

Since JIS B 1702-1 was largely harmonized with ISO 6336, you can use the ISO 6336-1, -2, and -3 standards (which are much easier to find online) as a baseline. The "useful paper" you need is one that highlights the specific deviations (usually in the load factors $K_H$ and $K_F$ or the stress correction factors).

JIS B 1702-1 standard, officially titled "Cylindrical gears — ISO system of flank tolerance classification — Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth," jis b 1702-1 pdf

is the primary Japanese industrial standard for defining the accuracy and tolerances of individual cylindrical involute gears. 日本規格協会 JSA GROUP Webdesk Standard Overview Current Version : JIS B 1702-1:2016.

: Specifies the tolerance classification system for tooth flanks of individual cylindrical involute gears, including definitions for gear flank tolerance terms and allowable values. Key Parameters Defined Pitch Deviations : Single pitch deviation ( f sub p t end-sub ) and total cumulative pitch deviation. Profile Deviations

: Total profile deviation, profile form deviation, and profile slope deviation. Helix (Lead) Deviations

: Total helix deviation, helix form deviation, and helix slope deviation. Accuracy Grades : Defines 13 grades of gear accuracy (0 through 12), where is the highest accuracy and is the lowest. Intertek Inform Where to Access the PDF This is a detailed write-up regarding the document

You can obtain official or preview copies of the standard through the following sources: Japanese Standards Association (JSA)

: The official publisher. A preview of the 2016 edition is available on the JSA Webdesk ANSI Webstore ANSI Webstore provides the full document for purchase and subscription. Intertek Inform : This platform offers the current JIS B 1702-1:2016 and historical versions like the 1998 edition.

: User-uploaded versions (often for viewing or with a subscription) can be found for the 2016 version gear accuracy summaries Technical Application For practical engineering application, manufacturers like

provide extensive technical references that translate these JIS standards into usable tables for gear design and selection. differences Grade 0, 1, 2, 3, 4, 5, 6,

between the current 2016 version and the older 1998 or 1976 standards? Jis B 1702-1 | PDF - Scribd

5. Obtaining the PDF

While technical summaries provide an overview, the actual JIS B 1702-1 PDF document is required for manufacturing and compliance. The standard contains complex look-up tables for tolerance values based on the module, reference diameter, and tooth width.

Where to find the official PDF:

  1. Japanese Standards Association (JSA): The official body that publishes JIS standards. They sell the PDF through their web store (usually in Japanese, though English versions are available).
  2. Techstreet / IHS Markit: Authorized resellers of global engineering standards.
  3. Internal Corporate Libraries: Most major automotive or robotics manufacturers maintain a subscription to a standards database which includes access to this PDF.

4. Key Technical Contents of JIS B 1702-1

A genuine copy of the standard includes these essential sections: