Miele Cogged Belt for Power nozzle SEB228, SEB236 and SEB 234. This cogged belt allow power to go directly from the drive motor to the Brushroll without and slipping. The cogged belt provides a steady speed of the Brushroll regardless of carpet height. Belt will last a long time will not need to be changed regularly. To reduce wear on belt avoid getting objects caught in Brushroll like shoelaces, sheets, rags, and edge of area carpets.