Tribological behavior of grooves textured thrust cylindrical roller bearings under dry wear

• Published in: Advances in mechanical engineering Vol. 13; no. 12
• Main Authors: Long, Risheng, Pan, Zhen, Jin, Zhihao, Zhang, Yimin, Sun, Shaoni, Wang, Yueyong, Wang, Yibing, Li, Manhong
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.12.2021; Sage Publications Ltd; SAGE Publishing
• Subjects: Bearing strength; Bearings; Coefficient of friction; Design optimization; Grooves; Mechanical properties; Mechanical systems; Parameters; Roller bearings; Tribology; Wear; surface texture; friction and wear; dry wear; Rolling element bearing; groove
• ISSN: 1687-8132; 1687-8140
• DOI: 10.1177/16878140211067284

To prolong the serve life of roller element bearings (REB) and improve the reliability of mechanical system, the tribological behavior of the “washers-cage-rollers” system of grooves textured thrust cylindrical roller bearings (TCRB, 81107TN) under dry wear was researched. The pattern parameters include: width of grooves (WOG, 50, 100, and 150 μm), depth of grooves (DPOG, 7, 11, and 15 μm), as well as groove deflection angle (GDA, 0°, 45°, 90°, and 135°). The influence mechanism of grooves on the tribological properties of REBs is discussed. The results show that: As the GDA is 45°, the coefficient of friction (COF) and mass loss of bearing is the lowest among four angles. The average COFs of grooves textured bearings are much higher than that of smooth one, and their mass losses are all lower than that of smooth bearing. The influence of pattern parameters on the surface stresses of grooves textured bearings is weak. In this work, when the WOG is 50 μm and the DPOG is 7 μm, the wear loss of grooves textured bearing is the lowest, reduced by up to 75.6%. This work can provide a valuable reference for the raceway design and optimization of REBs.