for all profiles. Key dimensional formulas used for calculation include: Reference Diameter ( d sub cap B
: Designates the part type. W stands for Welle (Shaft/External spline). N stands for Nabe (Hub/Internal spline). din 5480 spline dimensions pdf
: "N" stands for a hub (internal), and "W" stands for a shaft (external). 40 : The reference diameter ( 2 : The module ( ), which determines the tooth size. 18 : The number of teeth ( 9H : The tolerance class (standard fit). Core Geometry and Formulas for all profiles
: Provides visual context for internal and external spline fits. Doppler Gear Basic Calculation Formulas din 5480 spline dimensions pdf