: Lapped or fine-ground surfaces to minimize friction.
To help find the exact table or modern replacement you need for your current project, please let me know or tolerance class you are trying to calculate. Propose how we should proceed by telling me if you need the exact math formula for these deviations or a comparison chart between the old DIN and new ISO standards. Share public link
When reviewing a high-quality DIN 7161 PDF, check these critical tables: din 7161 pdf extra quality
While DIN 7161 remains deeply embedded in legacy blueprints and European manufacturing documentation, the standard has largely been superseded by international frameworks.
High-contrast formatting where subscripts, superscripts, and negative signs are unmistakable. How to Read a DIN 7161 Tolerance Table : Lapped or fine-ground surfaces to minimize friction
If you are looking to integrate these specific values into a live production workflow, tell me:
High-quality files let you press Ctrl+F to jump instantly to specific nominal sizes (e.g., "30mm") or specific tolerance designations (e.g., "f7"). Share public link When reviewing a high-quality DIN
The term "extra quality" in the context of a technical PDF refers to a digital file with superior characteristics for professional use. A standard PDF might be a low-resolution scan of a faded, decades-old physical document, making some numbers or notes difficult to read. In contrast, an "extra quality" PDF is:
The hole is always larger than the shaft, allowing relative movement (e.g., H7/g6).
When searching for engineering standards online, a standard text scan often falls short. High-utility, premium-quality engineering PDFs offer distinct advantages for shop floors and design offices:
When possible, compare with ISO 2768-1 (general tolerances) and DIN 7168 (for welded parts) — but for unbalanced tolerances, DIN 7161 remains unique.