Function and Importance: Carbon brushes are key components of electric drills, responsible for conducting electricity between the stationary and rotating parts of the motor. They maintain good electrical contact with the commutator to ensure the normal operation of the motor. As wearing parts, when carbon brushes are severely worn, it may lead to problems such as poor motor contact, increased sparking, and reduced power. Therefore, timely replacement of carbon brushes can ensure the normal operation of the electric drill and extend its service life.
Product Specifications: Generally, the size of this kind of carbon brush is about 4.6 * 8 * 11.6 mm, but different manufacturers may have slight differences.
Material: Usually made of carbon steel or other high - quality carbon materials, which have good electrical conductivity and wear - resistance, and can withstand the harsh working environment of electric drills.
Purchase Channels: It can be purchased from e - commerce platforms such as JD.com, Taobao, AliExpress, and Amazon138. Besides, it can also be bought from offline hardware stores or Bosch's official authorized service points.
Price Range: The price varies depending on the brand and the number of carbon brushes. The price of non - original carbon brushes on AliExpress is about 1 to 4 euros/pair, while the price of original carbon brushes on domestic e - commerce platforms is about 18 to 22 yuan/pair.
