Fluid Bearings

Fluid bearings are bearings that support their loads solely on a thin layer of liquid or gas. They can be broadly classified into two
types: id dynamic bearings and hydrostatic bearings. Hydrostatic bearings are externally pressurized fluid bearings, where the
uid is usually oil water or air, and the pressurization is done by a pump. Hydrodynamic bearings rely on the high speed of the
journal (the part of the shaft resting on the id) to pressurize the flid in a wedge between the faces. Fluid bearings are
frequently used in high load, high speed or high precision applications where ordinary ball bearings would have short life or
cause high noise and vibration. They are also used increasingly to reduce cost