Slip bearings are machine components that provide support for rotating parts, usually rotating shafts or axles, take on the forces that load the parts concerned and work under conditions of relative sliding of the shaft journal surface onto the bearing (bearing shell) surface, while the two surfaces are separated by a film of lubricant. For the correct operation of the slip bearings, without systematic wear of the Journal and bearing shell surfaces, they must be separated by a sufficiently thick lubricant film to completely exclude direct contact of the two surfaces in relative movement.