Security system for roller mills

Actively redundant drive system for roller mills which - a housing (1), - a rotating grinding table (7) with the grinding track (2), - on the grinding track (2) which roll grinding rollers (3), - a thrust bearing (4) - and a drive of an electric motor (10) and reduction gear (11, 11 ') for driving the grinding track (2) include, characterized, in that - each drive is mounted on a carriage, - the transmission (11 ') is a single- or multi-stage spur gears, - the gearbox inspection openings for the Assessment of dental procedures has, - a constant availability of at least two drives (10, 11, 11 ') by the arrangement of more than two drives (10, 11, 11') is secured, - and at least two drives (10, 11, 11 ') provide the required grinding capacity of the roller mill.