Wear experiment and model of rolling balls in sliding-rolling conditions

Abstract

When the rolling bearing is working, sliding and rolling always exist in the friction pair simultaneously. The operating condition is complicated and fickle. For these kinds of behaviors, it is necessary to simulate the bearing sliding-rolling ratio (SRR), load, speed and other operating parameters in the wear-testing research between the rolling elements and the inner or outer ring. By the improvement of the transmission, measurement, and control system of an existing pure rolling contact fatigue test rig for bearing ball with three contact points, the simulation of bearing balls would be more realistic and test parameters are close to actual operating conditions. The rolling ball wear experiments were carried out under different SRRs operation conditions. By analyzing test data, the calculation model of wearing rate under the operation condition of sliding-rolling was established based on Archard model.

Skidding and spinning investigation for dry-lubricated angular contact ball bearing under combined loads

“…There is a large volume of published studies describing the skidding characteristics of rolling bearings. Xi et al [12] developed a wear prediction model based on the rolling-sliding ratio through experimental data, and studied the influence of rolling-sliding ratio, load, and rotational speed on the wear of ball bearings. Wang et al [13] proposed a dynamic model considering the combined radial and axial load and lubricant to understand the effect of high speed on skidding in ACBBs.…”

Research on the relationship between transmission efficiency and input torque of manual transmission

“…Xi et al of Shanghai University study the rolling bearing, the sliding-rolling ratio (SRR), load, speed and other operating parameters of the rolling bearing are researched. Then the power loss calculation model of wearing rate under the operation condition of slidingrolling was established [4]. Xie and Rao of Shanghai JiaoTong University researched the nature of friction coefficient of lubricated bearing, calculated the Stribeck curves as the function of load and speed, and put forward the essential model of friction coefficient [5].…”