Test setup consisted of two PLH-1400 gearboxes which were run back-to-back.
The left gearbox was filled with NUFLUX™ formulated gear oil, the other with a commercial PAO gear oil.
Temperatures and oil pressures were measured at 8 and at 3 spots, respectively. Gears were painted to examine the contact patterns.
Contact patterns did not show any abnormal behavior. All contact patterns were good and no hard end contacts or marks of particles were detected. The NUFLUX™ formulation passed the factory test and is permitted in field tests.