Chiavette Unificate – Feather Keys DIN 6885 is the official reference for standardized parallel keys used for torque transmission between shaft and hub.
This catalog details profiles A/B/C, dimensional ranges, tolerances and recommended fits for shaft keyways and hub slots.
It also includes material specifications (C45 and alloyed steels with optional phosphate/zinc coatings), chamfer and end radii standards for assembly, as well as guidance on stock bars vs. cut-to-length pieces.
Content overview
- Profiles A/B/C with dimensional charts and tolerances.
- Materials and surface treatments for corrosion protection.
- Length series, chamfers and end radii per DIN 6885.
How to use
- Select the correct profile (A/B/C) for shaft–hub connection.
- Check dimensional fit according to DIN 6885 tables.
- Apply recommendations for assembly and lubrication.
Best practices
- Dimension keyway depth and hub slot to avoid stress peaks.
- For reversal loads, ensure proper surface finish and contact pressure.
- Use anti-seize or assembly pastes to reduce fretting.
Download: Chiavette Unificate – Feather Keys DIN 6885
