Non-rolling bearings are special types of bearings that are used in heavy load applications and in areas where low or no friction is needed. The bearings
can be broadly categorized into two: hydrostatic bearings and magnetic bearings. Magnetic bearings support loads using magnetic levitation. No contact with moving parts is made. For example, they can easily levitate rotating shafts
and allow relative motion with very little friction and no mechanical wear. They are known for supporting the highest speeds of all types of bearings. They are also preferred in industrial applications because they have very limited vibrations. The other common type of non-rolling bearing is the hydrostatic model. In this type, the load is supported by a thin layer of fast-moving and pressurized liquid between the bearing surfaces. Because there is no contact between the metals, the sliding friction and wear are very limited. These bearings can be grouped into fluid dynamic bearings and hydrostatic bearings.