Modelling and Construction of Radial Magnetic Bearing for an Overhung System

This paper seeks to explore the process of designing and constructing a radial bearing for a permanent magnet in an overhung system. The rising energy densities of permanent magnet materials have contributed to the increasing of demand for using permanent magnet in many applications. It is crucial to consider the usage of permanent magnetic bearings for replacing current radial bearing in rotating machinery. The advantageous of permanent magnet bearing would be able to support global environment movement in reducing the usage of fossil fuel and minimize power usage for driving various applications in industry. Despite many attempts, there are still gaps in magnetic bearing performance and magnetic energy efficiency which led to less effective and escalating development costs. This paper is to presents the modelling and construction for <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\varnothing 50 ~\text{mm}$</tex> rotor. Backers [4] has built foundation works, contributed to the design and implementation of the research. The research has been enhanced in several ways, including a 38% increase in bearing gap and length, as well as a ratio of ring thickness with initial gaps at 2.3. These enhancements have been considered in the analysis of the results and the writing of the manuscript.