Din 5480 Spline Dimensions Pdf Link [LATEST]

: The Class of Fit . The number indicates the tolerance quality (tighter tolerances use lower numbers). The letter represents the positional deviation. In this specific case, 8f is a classic sliding/slip fit. 📐 Critical Dimension Formulas

Specified by "Tolerance Classes" (e.g., 9H for hubs, 7g for shafts).

If you work in mechanical engineering, automotive drivetrain design, or precision machining, you’ve likely encountered the standard. It is the go-to specification for involute splines based on reference diameters, used heavily in Germany and across Europe.

Essential for calculating clearance and interference.