English to Italian Law/Patents Engineering (general) PRINCIPLES REGARDING WIND TURBINE CONDITION- BASED MAINTENANCE INSPECTION

Ciao a tutti, qualcuno di voi conosce il corrispondente italiano dell'espressione "tooth engagement". Il contesto è quello della manutenzione dei componenti di turbine eoliche.

Copio e incollo un paio di frasi dove compare il termine:
"The measuring direction must correspond to the loading direction of the relevant roller bearings. For the gearbox this means the radial direction of ***tooth engagement***; for the generator and the rotor bearings this means the direction of greatest loading".

"Data collection should be carried out simultaneously at all measuring points. This enables the testing staff to clearly allocate data with discontinuous anomalies that come up during the testing phase. In practice, data collection in groups, preferably with an 8-channel but at least with a 4- channel measuring system shall be sufficient.
The spectrum should run from 0 Hz up to the threefold value of the maximum **tooth engagement frequency***"

Grazie mille a chi mi darà un suggerimento!