DIN 5480 is titled "Involute splines based on reference diameters" (German: Zahnwellen-Verbindungen mit Evolventenflanken – Bezugsdurchmesser ). It superseded the older DIN 5463, DIN 5464, and DIN 5472 standards.
The DIN 5480 standard defines based on reference diameters, used primarily for connecting shafts and hubs to transmit torque. This standard is widely preferred in mechanical engineering because it allows for high-torque transmission and easy integration with standard ball or roller bearings. Core Standard Structure Din 5480 Pdf
: Tables for standard sizes based on reference diameters. DIN 5480 is titled "Involute splines based on
: Manufacturers like Doppler Gear provide decoders to help interpret standard callouts (e.g., Din 5480 Pdf