Do you know graphite bearings and the characteristics of this bearing?

Dec 18, 2023

The graphite bearing is a bearing made of graphite material. It has excellent lubrication performance and high-temperature stability. It is widely used in mechanical equipment under harsh working conditions such as high temperature, high speed and high load. The following will detail the manufacturing process, performance characteristics, application fields and future development of graphite bearings.

1. Manufacturing process of graphite bearings

The manufacturing process of graphite bearings mainly includes the following steps:

Ingredients: Mix natural graphite, resin, filler, and other raw materials in specific proportions to create a graphite mixture.

Molding: Put the graphite mixture into the mold and form it under a specific temperature and pressure.

Curing: After a certain period of heating or radiation, the graphite mixture undergoes a chemical reaction to form a stable polymer.

Processing: Carry out turning, drilling, grinding and other processing on the cured graphite bearing to meet the usage requirements.

Surface treatment: Surface treatment, such as coating, etc., is performed on the processed graphite bearings to improve their wear resistance, corrosion resistance, and other properties.

2. Performance characteristics of graphite bearings

Graphite bearings have the following performance characteristics:

Excellent lubrication performance: Graphite bearings have good self-lubricating properties, which can effectively reduce the friction coefficient and wear and increase the service life of the bearing.

High-temperature stability: Graphite bearings can maintain stable performance at high temperatures, are not prone to deformation, oxidation, wear, etc., and are suitable for mechanical equipment in high-temperature environments.

Corrosion resistance: Graphite bearings have excellent corrosion resistance and can withstand the effects of chemicals such as acids and alkalis. They are suitable for the chemical industry, marine and other fields.

Diamagnetic properties: Graphite bearings have diamagnetic properties and can resist the influence of magnetic fields. They are suitable for electric power, electronics and other fields.

Strong designability: The structure and size of graphite bearings can be designed according to usage requirements to meet the needs of different occasions.

3. Three types of graphite bearings

Graphite bearings can be divided into the following types according to different classification standards:

According to the bearing structure, it can be divided into rolling bearings and sliding bearings.

According to the application field of the bearing, it can be divided into ordinary and extraordinary graphite bearings.

According to graphite material, it can be divided into single-layer graphite bearings, multi-layer graphite bearings and metal strip graphite bearings.

4. Application fields of graphite bearings

Graphite bearings are widely used in the following fields:

Automotive industry: Graphite bearings can be used in automobile engines, gearboxes, and other parts, and they have excellent lubrication performance and high-temperature stability.

Aerospace: Graphite bearings can be used in lubrication systems in the aerospace field and have high temperature and wear resistance characteristics.

Chemical industry: Graphite bearings can be used in reactors, heat exchangers, and other equipment in the chemical industry. They have corrosion resistance and other characteristics.

Electronic power: Graphite bearings can be used in motors, transformers and other equipment in the electronic power field and have anti-magnetic properties.

Other fields: In addition to the above fields, graphite bearings can be used in ships, energy, medical equipment and other fields.

5. The future development of graphite bearings

With the continuous development of science and technology and the industrial field, graphite bearings will usher in broader development prospects. In the future, graphite bearings will develop in the following directions:

High performance: Improve the performance indicators of graphite bearings, such as high wear resistance, high-temperature resistance, etc., to meet more severe working conditions.

Green and environmentally friendly: Use environmentally friendly raw materials and technical production processes to reduce pollution and improve the product's environmental performance.