Gear Technology Magazine
www.geartechnology.com/articles/21466-the-basics-of-gear-metrology-and-terminology-part-ii

The Basics of Gear Metrology and Terminology Part II

November 1, 1998
In the last section, we discussed gear inspection; the types of errors found by single and double flank composite and analytical tests; involute geometry; the involute cam and the causes and symptoms of profile errors. In this section, we go into tooth alignment and line of contact issues including lead, helix angles, pitch, pitchline runout, testing and errors in pitch and alignment.