Specifying an Idler Roller

Joseph Kotwis, Dupont

The proper design of an idler roller can be the difference between a successful web machine and a problematic one. Idler rollers are a necessary building block of most web equipment and appear to be simple. However, they are still governed by numerous laws of physics that need to be considered through the design process. Taking into consideration all of the interactions between the equipment, film and the roller is critical to a successful idler roller design.