Abstract In this work, we proposed a method for coating the whole surfaces of bearing balls uniformly by carbon film with rotatable ball clamp. We studied carbon/carbon friction self-designed current-carrying test system. A notable and instant force drop 28% significant wear alleviation were found when currents applied. By using TEM-, SEM-, EDS-analysis, special stacks mixture large particles o...

A new, rapidly convergent, numerical procedure for internal loading distribution computation in statically loaded, singlerow, angular-contact ball bearings, subjected to a known combined radial and thrust load, which must be applied so that to avoid tilting between inner and outer rings, is used to find the load distribution differences between a loaded unfitted bearing at room temperature, and...

Bearing stiffness, as one of the most important service characteristics for ball bearing, plays a crucial role in bearing design and rotor dynamic analysis. To rapidly accurately calculate stiffness matrix under arbitrary load conditions, 5-DOF analytical model analysis has been established by ball–raceway contact analysis, implicit/explicit differential method, operations. The validated compar...

The authors ran 3 experiments to investigate how catchers deal with the horizontal component of the ball's trajectory in an interception task during locomotion. The experiments were built upon the finding that velocity adaptations are based upon changes in the horizontal angular position or velocity of the ball with respect to the observer (M. Lenoir, M. Janssens, E. Musch, E. Thiery, J. Uytten...