Table 1: Summary of Parameters Used in the Analysis

Parameter Constant Value Range
Load, F(N) 150 0-150
Radius of ball, R1(mm) 6.3 -
Angular velocity, ω (rad/s) - 0-4.5
Radial clearance, c (mm) 0.7 0.05-0.70
Young’s modulus, E´ (GPa) 3.7 -
Poisson’s ratio,ν 0.36 -
Viscosity, η (mP·S) 0.9, 1.24 -
Mean surface roughness of ball, Ra1 (µm) 0.585 -
Mean surface roughness of socket, Ra2 (µm) 0.525 -
Compound surface roughness, σ (µm) 0.786 -