Test analysis of anti-friction/wear of fullerene C60 lubricating oil to planetary gear shaft
LIU Guoliang
ZHAO Xinhao
Abstract：[Objective]Effective lubrication is one of the most efficient methods for reducing friction and minimizing wear on metal component surfaces in mechanical motion pairs.To address the rapid friction and wear failure of the planetary gear shaft in differential assemblies,the anti-wear and friction-reduction effects of fullerene C60 nano-carbon sphere lubricant on planetary gear shafts were investigated.[Methods]Firstly,friction and wear tests were conducted under the action of fullerene C60 lubricant to analyze the influence of C60 nano-carbon sphere concentration on the friction coefficient and wear scar surface morphology.Secondly,a differential assembly fatigue life test bench was utilized to perform fatigue wear tests on the differential planetary gear shaft,observing the friction-reducing effects of C60 nano-carbon spheres on the gear shaft.[Results]The analysis results demonstrate that the average friction coefficient under the action of fullerene C60 nano-carbon sphere lubricant is as low as 0.080 1,representing a 71.1%reduction compared to the base lubricant.Furthermore,the wear amounts on both ends of the planetary gear shaft pins decrease by approximately 60%.
Keywords：Fullerene C60Friction and wearDifferential assemblyLubricating oil additive
Publication Date：2026-05-31
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 86-89,117 )