A ferrofluid is a fluid with paramagnetic properties while having a colloidal stability. This can be used to obtain a hydrostatic type of bearing that distinguishes itself from other bearings by its compactness, inherent stability, low (viscous) friction, absence of pumps and absence of stick-slip. These properties, together with its low price, make the bearing interesting to be used for applications that require fast and precise positioning or applications in the absence of gravity. Knowledge on the exact performance of these types of bearings is up to now not available. This thesis presents different models that can be used to understand the load, stiffness, damping, friction and trail formation of these types of bearings.