Inspection at Nano Level

Gear noise contributors like transmission errors caused by geometrical deviations have long been known to be noise contributors in gear mesh. Gear specialists understand the influences of undesired gear and tooth deviations on noise and have found ways to improve them over the years. Tooth flank deviations, which lead to so-called “ghost noise”, are still hard to detect, and therefore, in many cases, have to be accepted by gearbox manufacturers. Now, with the surge of electric vehicles, ghost noise has caught new attention, and ways are sought to overcome it. Since tooth flank waviness is the main contributor to undesired high-frequency noise behavior in gear mesh, Gleason offers two pioneering software solutions for waviness detection.

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