Bearings are vital components that widely used in modern machinery. Although usually manufactured with high-strength steels, bearings still suffer from rolling contact fatigue where unique microstructural alterations take place beneath the surface as a result of complex stress state. Studying these is hot research topic many efforts recent decades. In this respect, key information regarding fou...

This paper presents the Finite Element (FE) analyses carried out with aim to predict tooth root fatigue and Rolling Contact Fatigue (RCF) behavior of spur gears, in terms crack propagation maximum number cycles. The combination different materials, i.e. steel titanium, surface treatments, case-hardening application layers by Physical Vapor Deposition (PVD), are investigated. residual stresses i...

A finite element model was developed to investigate the influence of near surface orthogonal shear stress (OSS) on competitive failure mechanism between originated pitting (SOP) and subsurface spalling (SOS), which is intrinsic rolling contact fatigue (RCF). Surface roughness in heavily loaded non-conformal contacts causes competition SOS SOP. In this investigation, tribo-surface has been repre...