Annotation of standard text SAE ARP1111A :
This concept for measuring worn splines provides a direct wear depth dimension by utilizing the unworn involute surface as a contact point from which to measure the depth of wear on the spline tooth at the pitch diameter. Fig. 1 shows spline wear patterns and pitch diameter gaging points.
SUBFILE: Aerospace
TYPE OF DOCUMENT: Aerospace Standard
Stabilized: Feb 2020 