5 R e l i a b i l i t y t es t i n g T o ensure ultimate quality w e go a litle bit further In addition to conv entional prototype testing w e of er gearbo x qualifcation with a reliability test The test includes simulation of e x treme conditions as w ell as an accelerated endurance test at ele v ated loads W e are also able to ensure system reliability by testing it under se v ere ambient conditions in the climate chamber on both subsystem and component le v el The Mo v entas Gear T echnology Center researches the dynamic behavior of gear unit components and enables testing of a wind turbine gear up to ten megaw ats At the center w e test prototype units under all load conditions to qualify their noise and vibration perf ormance Our wind turbine gears are thoroughly tested inhouse during the production process W e conduct a complete runningin procedure bef ore deliv ery Runningin under controlled load conditions reduces surf ace roughness of the teeth as w ell as the risk of micropiting and scufng W e use only selected highgr ade steel in the gear unit wheels T o guar antee optimum gear wheel quality w e k eep the critical heat treatment processes inhouse The housings ensure the rigidity of the gearbo x es and allo w fe x ible modifcations to suit customer requirements