this is the spec i've found in lots of idraulic motors catalogs to define spline shaft output.
i would like to say if this is the same standard as ANSI B92.1-1970 or not and if no, where i can found this normative.
thank you very much
thank you mr. arto and diamondjim.
lots of catalogs have a spline data as ANS not ANSI.
for example Danfoss hidraulic motors catalogue write
ANS B92.1-1970 class 5 (corrected M x X = 0.8).