Device and method for processing a surface

A device for processing a hard surfacing, the device comprising:

• a frame to be mounted to a vehicle:
• a support coupled to the frame, configured for carrying one or more rotary processing units, each rotary processing unit being adapted for processing the hard surfacing under the processing unit and wherein each rotary processing unit comprises:
• a drive motor with a drive shaft, for rotating each rotary processing unit relative to the support;
• a substantially flat first disc comprising a plurality of processing heads arranged on a flat side of the first disc facing away from the drive motor and arranged to process the hard surfacing;
• a substantially flat second disc coupled via vibration-damping coupling elements to the first disc and extending parallel to the first disc;
• and
• a substantially flat third disc coupled via one or more additional coupling elements to the second disc and extending parallel to the second disc;
• and
• wherein at least one of the second or third disc is coupled to the drive shaft of the drive motor such that the first, second and third discs form a stack of discs that is rotatable relative to the support, and
• wherein the additional coupling elements are deformation-reducing coupling elements configured to provide a deformation-reducing coupling between the second and the third disc.