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"Carbon Brushes - Current carrying parts with an inportant function at electrical motors"
The term "Carbon Brush" is derivated from the thin copper wire bundles used as flexible contact during the initial terms of electrical machine engineering in the industry. In the later years the term "Carbon Brush" got established by the usage of carbon and graphite materials. Carbon Brushes, which passed a development process for long years, preserve their position as the indispensible parts of electrical machine in the age of microelectronics. The production parameters are such rich to include very different physical values and application opportunities. According to the DIN IEC 60276 standard are the carbon brush qualities divided into 5 main groups.
Metal graphite brushes
Resin bound graphite brushes
Carbon Graphite Brushes