Plain bearings offer several benefits when compared to rolling bearings. Some of the available benefits of plain bearing have been lightweight, lower costs, less noisy, longer stress-free service life of the elements, and need less radial space, as they are built with thin walls. Plain bearings are easily installed.
They use self-lubricating bearings. Therefore, it does not require lubrication procedure. They would enable higher rotational speeds. You could make the most of greater shock resistance feature of the plain bearing. A few disadvantages would be inclusive of higher friction during startup, need more axial space, indispensable use of friction resistance materials, and greater wear and tear due to direct friction between the shaft and the bush.