brush wheel

from The Century Dictionary.

• noun A toothless wheel sometimes used in light machinery to turn a similar wheel by means of bristles, or some brush-like or soft substance, as cloth, buff-leather, india-rubber, or the like, attached to the circumference.
• noun A circular brush used in a lathe, with polishing-powders, for cleaning and polishing curved, indented, and chased work.

from the GNU version of the Collaborative International Dictionary of English.

• A wheel without teeth, used to turn a similar one by the friction of bristles or something brushlike or soft attached to the circumference.
• A circular revolving brush used by turners, lapidaries, silversmiths, etc., for polishing.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A wheel without teeth, used to turn a similar one by the friction of bristles or something brush-like or soft attached to the circumference.
• noun A circular revolving brush used by turners, lapidaries, silversmiths, etc., for polishing.