Model Nip Roller Cover

AwardWinner of an IWEB 2017 Best Paper Award!

Demonstrating the effects of crowning and skewing

This paper describes a model that predicts the axial contact and pressure behavior between a pair of end-loaded nip rollers such as are commonly found in web handling and processing applications.

The model includes the effects of shell bending, rubber compressibility and axial variation in gapping before and during loading. The model is used to quantitatively show how roller skew and diameter crowning can be used to compensate for shell bending in order to achieve an axially uniform nip distribution.

The pros and cons of such methods are also discussed.