The standard provides the geometry, dimensions, and tolerances necessary for manufacturing and inspecting these heavy-duty spline connections. Straight-sided splines - Heavy series.
The internal diameter gradation is consistent across the light, medium, and heavy series, often designed to be 1–2 mm larger than standard ball-bearing diameters for easier assembly. Where to Obtain DIN 5464 PDF din 5464 standard pdf
Another reliable platform for purchasing the standard documentation . The standard provides the geometry
