Yes, according to the inquiry of Bisell screw compressor official website, Bisell screw compressor adopts pressure lubricated ball bearings. Screw compressor is a common type of refrigeration and air conditioning compressor, and its working principle is to compress gas through the rotation of screw. In order to support screw rotation and reduce friction loss, screw compressors usually use ball bearings as supporting and operating parts to provide better wear resistance and high-speed characteristics.