The CompAir Compression Element contains completely oil-free compressed air. The design guarantees a non-wearing, non-contact labyrinth seal which prevents lubricant from entering the compression chamber. The loads are equalized across thrust balance pistons, which enables each bearing to have excellent life expectancy. The compression element leads the industry in efficient energy. Maximum air outpout and minimum energy consumption are achieved through the advanced asymmetric rotor profiles and optimized radial and axial porting. Lubrication is essential to ensure the longest working time for the cooling of gears and bearings. The CompAir D-Series provides an oil pump that delivers full lubricant pressure to ensure this process. The design includes low friction bearings and timing gears.