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
0.077
12.65
2
12.54
0.076
12.34
3.5
12.30
0.075
11.92
0.074
11.48
4
0.073
11.15
11.08
0.072
10.86