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SAE ARP1111A

M00019535

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SAE ARP1111A Inspection of Worn Involute Splines (Stabilized: Feb 2020)

standard by SAE International, 02/03/2020

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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.