Grinding Mill has low maintenance design

Designed for continuous operation, Vertical Roller Mill (VRM) performs efficient fine grinding and classification of soft to medium-hard materials. It is based on combination of TC/ALPHA classifiers and 2- or 3-roller mill body that can work with standard gear boxes. Due to integrated bearing system of roller table, mill does not need any reinforcement on gearbox itself and requires minimal maintenance.

How to mantain grinding mill?