What are brushes for power tools and what are they for?

The power tool is an indispensable assistant to the modern builder. It is used for making holes, for cutting materials, for clogging nails, etc. Virtually every such device uses an electric motor for work , and therefore, it installs graphite brushes for power tools.

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 at the same time be sufficiently hard, so that it does not wear out under the influence of friction. Therefore, carbon brushes are used for electric tools that meet both requirements. Another positive quality of this material is that when an arc of voltage arises between contacts it is not welded to the metal. This is especially important, since such an electric arc arises quite often when the engine is running.

Wear

It should be noted that the most common brushes for electric tools, which are installed by the manufacturer, have a relatively short life. This is especially evident with intensive work and heavy loads. Also, when breakdowns occur in most cases, they are associated with brushes, which greatly simplifies the repair.

Replacement

Most professional devices have a special valve that opens access to the engine for replacing. However, it should be remembered that brushes for power tools are suitable only for those models for which they were designed. This is not related to the properties of the material, but is caused by the design. Therefore, some masters, as emergency measures, get the brushes out of the working device and install them into a non-working one, adjusting the size with the help of a file. However, this method can only be used in extreme cases to help quickly complete the work that has begun. For permanent use, it does not fit.

Kinds

Currently, brushes for power tools have several types and types. Such a variety is achieved by adding various components to graphite in the manufacture to give the product certain qualities. Usually they try to increase the service 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 a different tool in which an electric motor is installed, it is necessary to take care of the availability of various consumables. Therefore, among the large selection of drills, cutting discs and saws there must be a brush for the power tool. They can help the master at the most crucial moment of his work and will help extend the life of the equipment. Also, do not give too much stress to the tool, as this leads to a reduction in the service life of not only the brushes, but also the engine as a whole.