In dynamic shaft operation, the oil in the bearing housing provides splash-lubrication for the equipment bearings. Most of the oil entering the LabTecta’s velocity-reducing stator cavity is expelled through the stator expulsion orifice. It is likely, however, that some oil will get past this first cavity. As the oil particles now travel axially along the shaft, they are subject to centrifugal radial forces from the rotating shaft.

The radially accelerating oil particles are forced to contact the inclined stator surface and will move counter-axially towards the stator shoulder. The stator and shaft geometries and their relative proximity create a standing vortex. This standing vortex acts as an essential second physical barrier that prevents further oil egress.