: Side-fit (flank centering) is the standard method, though diameter centering is permitted in exceptional cases. Standard Structure & Parts
It is not interchangeable with ISO 4156 splines, which use different pressure angles and module-based sizing. Structure of the Standard Din 5480 Pdf
The is the most widely recognized German specification for involute splines based on reference diameters. It is a critical document for mechanical engineers designing power transmission components, such as gearboxes, axle shafts, and transmissions, because it ensures precision and interchangeability between shafts and hubs. : Side-fit (flank centering) is the standard method,