The role of graphite in graphite copper sleeves

Graphite copper sleeve is a new type of self-lubricating sliding bearing with copper sleeve as the load-bearing base and graphite as the lubricant. Graphite is evenly distributed in dots on the copper sleeve, generally accounting for 25~30% of the sliding surface area. Graphite copper sleeves are more wear-resistant than traditional copper sleeves, do not require refueling, require no maintenance, and have long service life. Compared with ordinary bearings, they also have the advantages of no refueling and maintenance, high load-bearing capacity, impact resistance, various types, lightweight structure, and good customizability. 
The lubrication principle of graphite in graphite copper sleeves is achieved through its layered structure and chemical bonds between carbon atoms. The molecular structure of graphite is composed of multiple parallel-arranged layers, and each layer is composed of carbon atoms between layers. Attracted together by weak van der Waals forces. This structure allows graphite to slide smoothly during friction, while also preventing direct contact between metals, thereby reducing friction and wear.

Graphite copper sleeve

The lubricating properties of graphite are also related to the air and water molecules in its layered structure. The air and water molecules on the graphite surface will form a "lubricating film", which gives the graphite surface certain lubrication properties. In addition, tiny particles in graphite can also fill surface irregularities, thereby reducing friction and wear.
Graphite lubricants are mainly used in metal processing and machinery manufacturing industries, such as steel metallurgy, automobile manufacturing, aerospace and other fields. In these industries, graphite lubricants are widely used to lubricate bearings, gears, guide rails, sliding bearings and other mechanical parts to reduce friction and wear and improve the durability and efficiency of machinery.
In addition to being a solid lubricant, graphite can also be used as a raw material for liquid lubricants. Graphene is a single-layer film composed of graphite layers that has excellent lubrication properties. Graphene lubricants have the characteristics of high temperature stability, anti-corrosion and low friction coefficient, so they are widely used in friction materials, lubricants, coatings, composite materials and other fields.

Graphite copper plates