is the tolerance quality (5–12); f is the deviation (fit type). Key Geometry and Calculations
A standard DIN 5480 callout follows a specific syntax that defines all necessary geometric properties: Description W / N Shaft / Hub W (Welle) for external shaft; N (Nabe) for internal hub. 120 Reference Diameter ( dBd sub cap B The nominal size, often matching bearing bore diameters. 3 The size of the tooth, ranging typically from 0.5 to 10. 38 Number of Teeth ( The total count of teeth on the circumference. 8f Tolerance Class & Fit
The fit between a shaft and hub is determined by the (number) and Deviation Series (letter): din 5480 spline dimensions pdf verified
Letters a–g are slip fits; h is a "line-on-line" fit; j–v are interference fits.
Letters F–G are slip fits; H is the standard line-on-line fit. Verified Resources and Standards is the tolerance quality (5–12); f is the
DIN 5480 splines use a and involute flanks. Key dimensions are calculated using the module ( ) and number of teeth ( Pitch Circle Diameter ( ): Base Circle Diameter ( ): Addendum ( ): Dedendum ( ): Typically
for hobbing, but can vary by manufacturing method (e.g., 0.55m for broaching). Profile Shift ( 3 The size of the tooth, ranging typically from 0
For precise manufacturing, refer to the individual parts of the standard on sites like Scribd or Engineering.com : Din 5480-1 | PDF - Scribd
The defines the dimensions and tolerances for involute splines based on reference diameters, ensuring high torque transmission and precise centering. Unlike other standards, it is designed so that the reference diameter often matches standard ball or roller bearing bores to allow for easier assembly and slip-fitting of components. Understanding the DIN 5480 Designation
Range from 5 (most precise) to 12 (least precise).