It is mainly based on high-strength copper alloy as the matrix (also called JDB solid inlaid self-lubricating bearing), and the method of inlaying special formulated solid lubricating materials as the lubricating medium replaces the traditional oil groove copper sleeve. It can be used in the environment that is not easy to refuel, long-term oil shortage or oil-free, to make up for the lack of regular refueling of traditional copper sleeves.
has the characteristics of high load-bearing ability, impact resistance, high temperature resistance, strong self-smoothing ability, etc., especially suitable for heavy load, low speed, reciprocating or swinging and other occasions that are difficult to smooth and form oil film.
Because of its high hardness and strength, and low cost, its service life under low speed and heavy load is twice as long as that of ordinary copper sleeves, so it is favored by customers.
The working principle of graphite copper sleeve: general solid smoothing agent accounts for 20-30% of the conflict surface area. The smoothing principle of graphite copper sleeve self-lubricating bearings is that part of the graphite particles is transferred to the shaft and bearing during the sliding conflict between the shaft and the bearing. On the conflict surface, a relatively stable solid and smooth diaphragm is formed to avoid direct adhesive wear between the shaft and the bearing.
This rational combination combines the respective functional advantages of metal alloys and non-metallic anti-friction materials, and complements each other. That is, with the high load-bearing ability of metal, it also obtains the smooth function of anti-friction materials. Therefore, it is especially suitable for environments such as no refueling, less refueling, high temperature, high load or water.
Graphite copper sleeve is also known as self-smoothing bearing. It is a kind of self-smoothing agent that has been developed to place orderly and appropriately sized holes on the conflicting surface of the copper sleeve as the metal matrix, and embedded graphite or molybdenum disulfide as a solid smoothing agent. Functional product.
At present, graphite copper sleeves have been widely used in construction machinery, metallurgical machinery, mining machinery, locomotive supports, steel rolling equipment, marine machinery, mold equipment, textile machinery, gas turbines and other low-speed heavy-duty applications, high-speed light-duty applications.
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