Din 5463 Pdf !full! Link

: These documents define "medium series" straight-sided splines with parallel flanks Dimensions

Example: For a 26 mm spline, Z=6, b=6 mm. din 5463 pdf

Yes. Absolutely. Do not assume ISO 14 tolerances match a 1970s German machine. Buy the historical DIN 5463:1976-06 PDF to be safe. din 5463 pdf