DIN 7161 is a German industrial standard that covers forming/bending tolerances and dimensions for sheet-metal parts (commonly referenced in mechanical and sheet-metal engineering). Engineers, fabricators, and CAD designers consult it when specifying toleranced bends, radii, and related sheet-metal features to ensure consistent manufacturability and interchangeability.
A: No. DIN 7160 originally covered deviations and fits for cylindrical workpieces, while DIN 7161 covered the principles, terms, and definitions for those fits. You need both for a complete system.
A: Yes, many withdrawn DIN standards were published in bilingual (German/English) editions. When purchasing from Beuth, look for the "en" language code.
You might wonder, "Why search for a DIN 7161 PDF when ISO 286-1 exists?" The answer lies in interoperability and historiography.
Many German machine tools, automotive parts, and industrial components manufactured between the 1950s and 1990s were designed using the DIN 7160/7161 system. If you are repairing or reverse-engineering such a component, you need to understand the original nomenclature. For example, DIN 7161 defines shaft and hole designations that, while similar to ISO, have subtle differences in how deviations are calculated. din 7161 pdf
Furthermore, vocational training programs in Germany and Austria still use DIN 7161 to teach the principles of limits and fits before transitioning to modern ISO standards. It is considered a pedagogical stepping stone.
DIN 7161 is a superseded German industrial standard that specifies ISO deviations for holes for nominal sizes ranging from 1 mm to 500 mm. Key Standard Details
Purpose: It provides tolerance tables (measured in microns) for internal measurements or holes, ensuring interchangeability in mechanical assemblies.
Current Status: This standard was originally published in August 1965 and is now superseded. DIN 7161 is a German industrial standard that
Replacement: It has been replaced by the international standard DIN ISO 286-2.
Content: The original document includes ISO-deviations for common hole types as outlined in ISO recommendations (formerly ISO/R 286). Tolerance Tables Overview
The tables in DIN 7161 (and its successor DIN ISO 286-2) group dimensions into ranges (e.g., above 3mm up to 6mm) and assign specific upper and lower deviations based on the tolerance class:
H7: A common tolerance field where the lower deviation is always zero. DIN 7160 originally covered deviations and fits for
Measurements: All deviations are typically expressed in micrometers ( ). How to Access the PDF
Since DIN 7161 is a historical document, you can find it through specialized standard repositories:
Official Purchase: You can find historical versions or the current replacement at DIN Media.
Historical Reference: Online libraries like Scribd host user-uploaded copies for reference, though these should not be used for current manufacturing without verification. DIN 7161 - 1965-08
Replacement amendments. This document has been replaced by: DIN ISO 286-2:1990-11 . DIN 7161 - 1965-08