Brush for electrodynamic machine has grinding and/or polishing arrangement on edge of brush for grinding off out-of-roundness defects on lamellas of commutator or slip ring

摘要

The brush (5) has a grinding arrangement (8,9) for grinding off out-of-roundness defects on lamellas (12) of a commutator (3) nor slip ring during operation. The grinding and/or polishing arrangement is arranged on the edge of a brush. The brush is arranged essentially parallel to the commutator lamellas Independent claims are also included for the following: a brush arrangement for an electrodynamic machine.