A combination like 9H/8f provides adequate clearance for components that need to slide axially under zero load.
) to establish the fit and geometric boundaries of the mating components. Key Characteristics of DIN 5480 Always fixed at 30∘30 raised to the composed with power
Ensure both parts share the same root style. Forcing a flat-root shaft into a fillet-root hub can result in structural binding or premature component failure. din 5480 spline dimensions pdf verified
To help you find or generate the exact data sheet you need, could you share the specific or module size you are working with? I can also provide the formulas for calculating measurement over pins if you are preparing for manufacturing inspection. Share public link
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 A combination like 9H/8f provides adequate clearance for
for a module/tooth count you have.
For the standard flat root profile (the most common variant for general power transmission): External Splines (Shaft "W") Minor Diameter ( df1d sub f 1 ): Internal Splines (Hub "N") Major Diameter ( df2d sub f 2 ): Minor Diameter ( da2d sub a 2 ): Forcing a flat-root shaft into a fillet-root hub
– mm