Type of Drawer Slides - Wheel “Under mount” Slides

Wheel “Under mount” Slides – The Wheel “Under mount” slide was a design with good intentions, however, several drawbacks have prevented this from being the case. Unfortunately they are not very durable. The durability is even less if the drawer has a lot of weight stored in it, as the center wheel may develop a flat spot, making your rolling action harder. The side wheels can also develop flat spots on them. This design doesn't fully support the drawer box at the bottom and has an excessive sway action when opening and closing the drawer.