The Power Tools graphite Carbon brush is composed of carbon, it is a high temperature resistant material, and its melting point reaches 3652°C. With this high temperature resistant feature, graphite can be processed into a high temperature resistant chemical utensil crucible.The conductivity of graphite is very good, more than many metals, hundreds of times that of non-metals, so it is made into conductive parts such as electrodes and carbon brushes.
Material |
Model |
resistance |
Bulk density |
Rated current density |
Rockwell hardness |
loading |
Graphite and Electrographite |
D104 |
10±40% |
1.64±10% |
12 |
100(-29%~+10%) |
20KG |
D172 |
13±40% |
1.6±10% |
12 |
103(-31%~+9%) |
20KG |
|
Advantage: good lubricity and duration |
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Application of D104: suitable for 80-120V DC motor, small water turbine generator motor and turbine generator motor |
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Application of D172:: suitable for big type water turbine generator motor and turbine generator motor |
The graphite carbon brushes are mainly widely used in electrical Power Tools motor equipment. They are used to transmit signals or energy to the fixed and rotating parts of some motors or generators. The shape is rectangular, and the metal wire is installed in the spring. The carbon brush is A kind of sliding contact, so it is easy to wear and needs to be replaced and cleaned regularly.
The internal structure of graphite helps power tool carbon brushes have good lubricity.