Pdf Verified - Din 5480 Spline Dimensions

. Unlike other standards that rely on major or minor diameters, DIN 5480 uses a reference diameter that often matches the bore of a standard ball or roller bearing to allow for easier component slip-fitting. Core Specifications & Designations A typical DIN 5480 designation (e.g., DIN 5480 – W 120 x 3 x 38 x 8f ) is decoded as follows: : "Welle" (Shaft/External) or "Nabe" (Hub/Internal). : Reference Diameter ( d sub cap B : Module ( ), which defines the tooth size. : Number of teeth ( : Tolerance class (8) and deviation series (f). Key Geometric Formulas The standard utilizes a 30° pressure angle

| z (Teeth) | d(_B) (Ref Dia) | d(_a) (Tip Dia) | d(_f) (Root Dia) | Form Dia d(_Ff) | | :--- | :--- | :--- | :--- | :--- | | 20 | 40.0 mm | 42.0 mm | 37.0 mm | 38.5 mm | | 24 | 48.0 mm | 50.4 mm | 44.4 mm | 46.2 mm | | 28 | 56.0 mm | 58.8 mm | 52.8 mm | 54.6 mm | | 32 | 64.0 mm | 67.4 mm | 60.2 mm | 62.8 mm | din 5480 spline dimensions pdf verified