A brush segment for mounting on a slotted support structure is presented. The brush segment generally comprises: a substrate; a carpet of bristles mounted on the substrate in a preferred manner; and, a root system projecting outwardly from a side of the substrate opposite from the carpet of bristles. Brush segments according to the present invention are particularly well-adapted for mounting in association with longitudinal slots of a cylindrical hub arrangement, including conventional cylindrical hub arrangements. According to a first described embodiment, the substrate is flat and relatively flexible, and includes a plurality of root members thereon, for mounting. In a second embodiment described, the substrate is generally curved, elastic, and includes a single centrally located root member, for mounting. Also according to the present invention a combination of a hub and at least one brush segment is described. Further, a method of preparing a brush surface is also provided.