The term "oil-free" merely implies that the gas is not combined with lubricant. The component that has to be lubricated and monitored for all compressors is bearings. Rotary positive displacement ...

you should first understand lubricants primary functions in rotary screw air compressors. To put it simply, a compressor lubricant is to an oil flooded air compressor what blood is to the human body.

Compressors in a chemical plant can be ... These reactions can form deposits which quickly promote excessive bearing wear and even more serious wear on larger rotating components such as rotary screws ...

Rotary lip seal is used in various applications ... A new model of thermoelastohydrodynamic lubrication in dynamically loaded journal bearings. J Tribol 2006; 128(1): 85–95. 17. Hajjam M and Bonneau D ...