Patent ID: 8876219

Claim:
A self-propelled surface milling cutter, with a working assembly comprising a rotatingly drivable drum body, and at least one drum drive unit which is accommodated in an interior of the drum body and forms at least part of a rotatable bearing of the drum body on a drum supporting frame, wherein the at least one drum drive unit includes a stationary drive part attached to the drum supporting frame and a rotatable drive part connected with the drum body, wherein the rotatable drive part is mounted on the drum body in a torque-transmitting, but longitudinally movable manner by a positive entrainment connection, the entrainment connection including a toothing having a first tooth part on the rotatable drive part and a second tooth part on an inner circumferential surface of the drum body, and wherein a lubricant bath in the interior of the drum body has a level which wets the toothing.