In mechanical engineering, connection integrity determines the longevity and reliability of rotating machinery. For decades, the standard has served as the global benchmark for involute splines with 30° pressure angles.
Where dm = ball diameter (0.6m to 1.1m typically).
Unlike other standards that rely primarily on pitch diameter, DIN 5480 uses the and module ( ) as the primary structural pillars. 2. Key Geometric Parameters and Nomenclature din 5480 spline dimensions pdf verified
da2=m×(z−1+2x)d a 2 equals m cross open paren z minus 1 plus 2 x close paren
The is a widely recognized German engineering specification for involute splines based on reference diameters. Unlike other standards that center on major or minor diameters, DIN 5480 is uniquely structured to allow splined components, such as ball bearings, to be easily slip-fitted onto shafts. Core Principles of DIN 5480 Unlike other standards that rely primarily on pitch
Disclaimer: For critical manufacturing applications, always consult the full, current version of the DIN 5480 standard.
⚠️ Minor variations exist depending on fit class and chamfer/root shape. Unlike other standards that center on major or
Every DIN 5480 spline is specified using a standard nomenclature string. Understanding this string eliminates errors when reading manufacturing drawings. DIN 5480 - W 120 x 3 x 38 x 8f Description DIN 5480 Specifies the design standard W Component Type W indicates a Shaft ( Welle ); N indicates a Hub ( Nabe ) 120 Reference Diameter ( Nominal size in millimeters 3 Pitch size in millimeters 38 Tooth Count ( Total number of teeth 8f Tolerance Class Defines the fit and backlash (e.g., 9H/8f) Fundamental Formulas for Dimensions
Comprehensive Guide to DIN 5480 Spline Dimensions and PDF Verification