Working Principle of Self-Lubricating Bearings

2025-09-15 16:52:08 嘉善迪克精密机械有限公司 Viewd 31

Bearings are mechanical components commonly used in machine tools. However, the working and production environments in some industrial enterprises are relatively harsh. During operation, corrosive gases like sulfur dioxide and dust often cause damage to mechanical equipment, leading to severe friction and wear in machine tools. To mitigate such issues, self-lubricating bearings have been developed and applied in machine tool machinery. Let's explore the working principle of self-lubricating bearings.


Self-lubricating bearings utilize a composite material—a novel extreme-pressure solid lubricant—comprising a metal substrate with solid lubricant paste embedded within its pores or grooves. During friction, the metal substrate bears the majority of the load. Through friction, the solid lubricant from the pores or grooves transfers to or back to the friction surface, forming a well-lubricated, firmly adhered, and uniformly distributed solid transfer film. This significantly reduces friction and wear. As friction continues, the embedded solid lubricant is continuously supplied to the friction surface, ensuring excellent lubrication for the friction pair during long-term operation.


The advent of self-lubricating bearings has substantially reduced labor and material costs in industrial production. They minimize friction or seizure between bearings and other components during operation, ensuring the normal functioning of machine tool mechanical parts and safeguarding continuous production. Our self-lubricating bearings require little to no additional lubrication during use, exhibit excellent wear resistance, feature a low coefficient of friction, and offer an extended service life.