AGMA 218.01 introduced or refined several mathematical factors still found in modern gear design: Account for tooth shape and load position. Dynamic Factor ( Cvcap C sub v Kvcap K sub v
: How well a gear tooth surface withstands Hertzian contact fatigue and stress over its operating lifecycle. agma 21801 pdf
Some users try to apply AGMA 21801 tolerances to CMM scanning results without adjusting for filter settings. The standard assumes a spherical tip probe (typically Ø3mm or Ø5mm) with specific contact force. AGMA 218