Abstract
In this study, a high-precision gear efficiency test facility is employed to investigate the impact of engineered surface technologies and lubricants on the mechanical efficiency of a gear pair. Power loss is measured under both loaded and unloaded conditions to separate load independent (spin) losses from friction-induced mechanical power losses. Engineered surface solutions such as super-finishing and PVD coatings are also investigated to determine their influence on gear efficiency. Measurements with alternative, low-friction lubricants are performed and compared to the results of a standard, baseline gear lubricant. Finally, measured results are discussed in terms of surface and lubricant parameters.
Keywords: (Gear efficiency, engineered surfaces, friction, lubricants, coatings, lambda ratio)