Din 7161 Pdf |link| Jun 2026

(holes) for sizes ranging from 1mm up to 500mm. Before this, if a factory in Munich made a shaft and a factory in Hamburg made a hole, there was no guarantee they would fit together. DIN 7161 provided the mathematical tolerance tables—expressed in micrometers ( )—to ensure perfect compatibility. The Technical Heart

The standard categorizes fits based on how much "wiggle room" or "squeeze" is desired: Clearance Fit: din 7161 pdf

to ensure compliance with current international manufacturing regulations. specific tolerance tables (holes) for sizes ranging from 1mm up to 500mm

or charts when dealing with legacy machinery or historical blueprints that utilize old German tolerance notations. While the specific numerical tables are now contained within the ISO 286 series, the fundamental concepts established in DIN 7161 remain the basis for: hole-basis fits The Technical Heart The standard categorizes fits based