Effect of type and concentration of fluid lubricant additive on the properties of greases

الملخص EN

The main aim of this research is to study the effect of fluid lubricant on the properties of soap greases, such as lithium, calcium, sodium, and lithium–calcium.

Base stock oils 40, 60, and 150 have been added with different concentrations to grease to obtain the best concentration that improves the properties of greases such as load carrying, wear resistance, corrosion resistance, drop point, and penetration.

Decrease in grease properties has been noticed when adding 20 % of base sock oil 40, and 30 % of base stock oil 60, but no significant change being observed of base stock oil 150.

Also, it is noticed that as the viscosity of base stock increases the effect of oil on changing grease properties will decrease.