The tribological failures of poly-α-olefin (PAO) oil-impregnated porous polyimide (PPI)
undermine the long-term reliability of aerospace bearing cages, often resulting in black …

With the significant penetration of wind generation, wind turbines require higher and higher
lubrication performance for bearings. To improve the lubrication performance of wind power …

A comprehensive dynamic model of ball bearing focusing on structure flexible deformations
is developed in this paper. The cage is split into several discrete segments linked by …

The abnormal state of supporting bearings significantly affects the directional accuracy of
spacecraft flywheel systems. A self-sensing triboelectric nanogenerator (TENG) offers a …

Lubrication failure accompanying with blackening phenomenon significantly reduces the
long-running operational reliability of porous polymide (PPI) lubricated with poly-α-olefin …

Currently, few studies focus on vibration characteristics of cage damage. A test rig can
simulate cage damage is built. Through two kinds of healthy deep groove ball bearings …

Rolling bearing is one of the critical parts of the transmission system and has a high demand
for operating conditions. Suitable operating conditions can ensure that the rolling bearing …

This paper aims to reveal the coupling relationship between surface topography and wear
and introduce a new coupling failure dynamic model of tooth surface topography and wear …

Waviness is the main shape deviation generated in the processing of rolling bearings. The
existence of race waviness directly alters displacement excitation and contact stiffness …

The randomness of the shaft current damage on the bearing raceway results in a certain
inclination of the damage. To accurately characterize inclined shaft current damage, a …