The carbon brush 25*38*90, also known as an electrical brush, is a sliding contact that plays a crucial role in many electrical devices. As a device that can be fixed on a shaft to transfer electrical or signal energy to a coil, the carbon brush is indispensable in motors, generators, and other rotating machinery. Today, let’s take a detailed look at the structure, material, and application of this carbon brush.

Firstly, the main component of the carbon brush 25*38*90 is carbon, usually with a certain amount of curing agent added for shaping. It has a block-like appearance and can easily be clamped onto a metal bracket. Inside the carbon brush, there is a spring that allows the brush to press tightly against the shaft, ensuring stable energy or signal transfer during motor rotation. Since the main component of the carbon brush is carbon, it is named as such. It is worth noting that carbon brushes are easily wearable parts and thus require regular maintenance and replacement, along with timely cleaning of carbon deposits to ensure normal operation.

The carbon brush resembles an eraser for pencils, with wires protruding from the top to transmit electrical energy to the coil. The size of the carbon brush varies depending on the device requirements.

In terms of materials, carbon brush 25*38*90 mainly fall into three categories: petroleum base graphite, lubricated graphite, and metallic (copper, silver containing) graphite. Petroleum base graphite brushes have good conductivity and wear resistance and are suitable for high-load motors or generators. Lubricated graphite brushes are based on petroleum base graphite but with added lubricating grease, which enhances its lubrication properties and reduces wear. Metallic graphite brushes add copper, silver, and other metals into the graphite, which improves conductivity and wear resistance, making them suitable for applications with high performance requirements.

In practical applications, the selection and installation of carbon brush 25*38*90 are very important. Improper selection or non-standard installation can lead to premature wear of the carbon brushes or even cause equipment failure. Therefore, when selecting carbon brushes, it is essential to consider factors such as the working environment of the equipment, load size, and rotational speed, and choose the right material and size of the carbon brush. At the same time, during the installation process, ensure that the carbon brush makes tight contact with the shaft and that the spring pressure is appropriate to ensure stable operation of the brush.

In summary, the carbon brush 25*38*90 serves as a vital sliding contact in electrical equipment. Understanding its structure, material, and application can help us better select, install, and maintain carbon brushes, ensuring the normal operation of the equipment. In the future, with the continuous development and innovation of electrical equipment, the demand for carbon brushes will also grow, and their application prospects in the electrical field will become even broader.