What is the principle of self-lubricating bearings?

What is the principle of self-lubricating bearings?

Principle of self-lubricating bearings:

Due to the requirements of special production processes, certain key equipment in industrial and mining enterprises operate under extremely harsh working conditions. 

Due to the heavy equipment, high environmental temperature, large dust or acidic corrosive gases such as CO and SO2 in the air, there are many problems with lubrication 

of the equipment, resulting in severe friction and wear. So far, most of the above-mentioned enterprises in China still use traditional oil and grease lubrication. However, in 

fact, these working conditions have exceeded the scope of oil and grease lubrication, and are prone to bite or death of bearings and other friction pairs, causing serious 

part wear and damage, and often leading to equipment shutdown.

In order to produce continuous operation, in addition to requiring the installation of multiple equipment for wheel repair in the original design, a large number of mainte-

nance personnel must also be invested. Severely restricting the improvement of productivity, spare parts and energy consumption are extremely high, which has become 

an important obstacle to the development of production. Automobile manufacturing, cement production, petrochemical and other enterprises have all put forward req-

uirements for providing special lubricating materials under complex working conditions.

Therefore, the research on embedded self-lubricating composite materials highlights its own characteristics in material formulation and preparation process. The material performance has reached the international advanced level, solving the lubrication problem for enterprises under special working conditions and bringing significant ec-

onomic and social benefits. However, due to various reasons, more domestic enterprises have not yet adopted it, and the above situation still exists.

Key technical principles

The composite material used in embedded self-lubricating bearings is a new type of anti extreme pressure solid lubricating material, consisting of a metal substrate and a 

solid lubricant paste embedded in the holes or grooves of the substrate. During the friction process, the metal substrate bears the majority of the load. Through friction, 

solid lubricants in holes or grooves transfer or reverse transfer to the friction surface, forming a well lubricated, firmly attached, and uniformly covered solid transfer film 

on the friction surface, greatly reducing friction and wear. As friction progresses, the embedded solid lubricant continuously provides lubrication to the friction surface, 

ensuring good lubrication of the friction pair during long-term operation.