scope:

This International Standard specifies the rules and graphical symbols for the representations of splines and serrations on technical drawings.

Two methods of representation are specified as follows :

a) true representation;

b) simplified representation.

The rules and graphical symbols specified in this International Standard are applicable to detail drawings of the parts (shafts and hubs) and to assembly drawings of joints.

NOTE - For uniformity all figures in this International Standard are drawn in the first-angle orthographic projection.

It should be understood that the third-angle orthographic projection could equally well have been used without prejudice to the principles established.