An Effect of Sliding Frequency on Tribological Property of the Bearing with Equiproportional Rectangular Grid-Structures

For optimizing the tribological behaviors of sliding bearing, an equal ratio structure of rectangular micro-grid is well constructed and then filled with the SnAgCu-CaF2 (SC) to form a surface micro/nanostructure. The reciprocating wear tests are performed at different sliding frequencies, ensuring that the tribological property at 7 Hz of a TASC-G4 is the best. During wear, the SC in a grid structure migrates to the friction surface and then spreads out to form an SC-rich lubrication film. In this film, a good wrapping in SnAgCu of CaF2 is ensured, helps a plastic enhancement of SnAgCu, an oxidation reduction and the rolling friction of CaF2. These enhance the lubrication film to resist friction damage, reduce sliding resistance, and strengthen interface lubrication, subsequently improves the tribological behaviors of the TASC-G4. The methods and conclusions are obtained to provide an important reference for improving tribological adhibition of the sliding bearings.