A DYNAMIC ANALYSIS OF TAPERED ROLLER-BEARINGS UNDER FULLY FLOODED CONDITIONS .2. RESULTS

In the first part of this work (I. Bercea, S. Cretu and N. Mitu, Wear, 188 (1995) 1-10) the dynamic equations of motion of both cage and rollers were derived by using vector matrix algebra for a tapered roller bearing with a model with six degrees of freedom. To solve the differential equations a numerical iterative procedure was also developed. This dynamic model is used in this paper to analyze the kinematic and friction behaviour of an axial loaded tapered bearing. The internal load distribution, bearing friction torque, cage slip, sliding speeds and lubricant friction coefficients are calculated for various working conditions. A good fit was found between computed values and the experimental data presented in the literature. Using the film thickness as an optimisation criterion, deductions of optimal values of ratio R(s)/R(rib) were done.