Din 5480 Spline Calculator Excel Install May 2026

Before diving into the calculator, it's essential to understand the basics of DIN 5480 splines. The standard defines two main types of splines: involute splines and straight-sided splines. Involute splines have an involute profile, which provides a smooth and continuous contact between the spline and the mating part. Straight-sided splines, on the other hand, have a straight profile and are used for applications where the torque transmission is relatively low.