Evaluate error in transmission ration of envelope chain and indexing chain in spiral-bevel-gear manufacturing machine gleason ZFTKK250X5

The paper presents the method which evaluates the gear ratio error of envelope chain and indexing chain spiral-bevel-gear generator ZFTKK250X5 in the Gleason system. The elements in power transmission chains are gear transmitters, which are subject to kinetic errors, pitch errors, cumulative pitch errors, etc...