DIN 5480 defines the geometry and dimensions of involute splines.
DIN 5480 uses a system of deviations and tolerance grades to define the fit (clearance or interference). din 5480
While DIN 5480 is still widely referenced on drawings, it has been withdrawn and replaced by . DIN 5480 defines the geometry and dimensions of
Understanding DIN 5480: The Standard for Involute Splined Connections din 5480
: Dimensions are based on reference diameters that remain independent of the module.