From: Assessment of the relationship between lubricating oil viscosity and surface-attached adhesion rate via regression modelling
Diameter of steel ball (mm)
No
Viscosity (NÂ s/m2)
Rate of surface-attached adhesion (%)
3
1
0.072
10.61
2
10.49
0.071
10.35
3.5
0.070
10.15
10.05
0.069
9.82
4
9.78
0.068
9.64
9.52