What are power tool brushes and what are they for?

The power tool is an indispensable assistant to the modern builder. It is used to create holes, for cutting materials, for hammering nails, etc. Almost every such device uses an electric motor for operation , which means that graphite brushes for power tools are installed on it.

Appointment

This element is necessary in order to transmit electric current to the rotor to create rotation. Therefore, it is necessary that the material from which they are made conduct electricity well and be solid enough so that it does not wear out very much under the influence of friction. Therefore, carbon brushes are used for power tools that meet both requirements. Another positive quality of this material is that when a voltage arc arises between the contacts, it is not welded to the metal. This is especially important, since such an electric arc occurs quite often during engine operation.

Wear

It should be noted that the most ordinary brushes for power tools that are installed by the manufacturer have a relatively short life. This is especially evident with intensive work and heavy loads. Also, in the event of breakdowns, in most cases they are connected precisely with the brushes, which greatly simplifies the repair.

Replacement

Most professional devices have a special valve that allows access to the engine for replacement. However, it should be remembered that the brushes for power tools are suitable only for those models for which they were developed. This is not related to the properties of the material, but is determined by the design. Therefore, some masters take brushes from an operating device as emergency measures and set them to non-working, adjusting the sizes with a file. However, this method can only be used in extreme cases to help you quickly complete your work. It is not suitable for continuous use.

Kinds

Currently, brushes for power tools have several types and types. This diversity is achieved by adding various components to graphite in the manufacture to give the product certain qualities.

Usually they try to increase the life of the material, but you can also find such brushes that are made of components designed to reduce the amount of sparking during active work.

Conclusion

With the active use of the various tools in which the electric motor is installed, it is necessary to take care of the availability of various consumables. Therefore, among a large selection of drills, cutting wheels and saws, there must be brushes for power tools. They can help out the master at the most crucial moment of his work and help to extend the life of the equipment. Also, do not give too large loads on the tool, since this leads to a reduction in the service life of not only brushes, but also the engine as a whole.