Lubricating Oils
Lubricating oils are fluid or semi-solid lubricants used to reduce friction and wear of the components in automotive vehicles and mechanical equipment, achieving the purposes of lubrication, assistant cooling, anti-corrosion, cleaning and so on.
Lubricating oils are generally composed of base oil (approx. 90%), additives (approx. 5-10%) and solid lubricants (0-5%). Base oil is the major composition of lubricating oil, determining the basic physical and chemical characteristics. Additives are able to improve the disadvantages of base oil. Solid lubricants are usually used for emergency lubrication.
According to the different types of base oil, lubricating oils are divided into:Mineral Oil,Polyalphaolefine，Polyglycol，Ester，Silicon oil，PFPE
Based on lubricating oil’s physical and chemical characteristics, critical technical data items include:viscosity，Viscosity-temperature Index，Pour point，Total Acid Number (TAN),Water content，Elemental analysis
Lubricating Greases
Lubricating grease is composed of base oil, thickener and additives. The lubricity for the friction point in the running mechanical component subject to constant medium and heavy load is determined by base oil and additives, while thickener contributes to assistant lubrication.
The following factors should be considered for assessing and selecting the right lubricating grease：Base oil type and viscosity，Thickeners ，Consistency
Service temperature range of lubricating greases:Oil separation ，Water resistance ，Corrosion resistance，Minimum shelf life of lubricating grease
