DIN 5480 is the German standard for involute splines based on reference diameters. Unlike other standards that use the pitch diameter as a starting point, DIN 5480 centers the design on the outside diameter of the shaft, making it easier to match with standard bearings and seals.
In this post, we break down everything you need to know about DIN 5480 spline dimensions and point you toward a reliable reference. din 5480 spline dimensions pdf
DIN 5480 standard defines the geometry and dimensions of involute splines used for power transmission in mechanical engineering. Unlike other standards that rely on the major diameter, DIN 5480 is based on a reference diameter ( DIN 5480 is the German standard for involute
| Symbol | Meaning | Description | | :--- | :--- | :--- | | d ref | Reference diameter | = m * z | | d B | Major diameter | Outer diameter of external spline | | d b | Minor diameter | Inner diameter of external spline | | d a | Root diameter | Internal spline minor diameter | | p | Circular pitch | = π * m | | α | Pressure angle | 30° or 37.5° | Number of teeth (z): Module (m): Pressure angle
The standard defines several types of splines, including:
DIN 5480 is the German standard for involute splines based on reference diameters. It is widely used in mechanical engineering for power transmission, particularly in automotive and industrial machinery. Key Characteristics Pressure Angle: Fixed at 30°. Module Range: Typically ranges from 0.5 to 10. Teeth Range: Standard covers 6 to 82 teeth.