What are the important properties of lubricants?

A good lubricant generally possesses the following characteristics:

  • A high boiling point and low freezing point (in order to stay liquid within a wide range of temperature)
  • A high viscosity index.
  • Thermal stability.
  • Hydraulic stability.
  • Demulsibility.
  • Corrosion prevention.
  • A high resistance to oxidation.

What is the most important property of a lubricant?

Viscosity is one of the most important properties of a fluid lubricant that determines the fluid friction involved in lubrication, the load-carrying capacity of the lubricant film, its resistance to the initiation of relative movement of moving parts and the sealing capacity, pumpability and heat transfer properties of …

What are 3 common lubricants?

There are three main types of lubricants: oil-based, water-based, and silicone-based.

What are the 5 properties of oil?

The key oil properties that are generally needed for understanding a reservoir and its producability are:

  • Bubblepoint pressure.
  • Solution gas oil ratio (GOR)
  • Formation volume factor.
  • Viscosity.
  • Interfacial tension.
  • Density.
  • Isothermal compressibility.

How do I choose a lubricant?

Oil selection criteria. When you select a lubricating oil, the most important parameters are the viscosity and viscosity index, the thermal stability (which influences the choice of oil type) and the additive package (EP/AW and corrosion protection) that fits the operating conditions for the application.

What are the 7 purposes of lubrication?

To lubricate each part of the bearing, and to reduce friction and wear. To carry away heat generated inside bearing due to friction and other causes. To cover rolling contact surface with the proper oil film in order to prolong bearing fatigue life. To prevent corrosion and contamination by dirt.

What are Class 8 lubricants?

Lubricant is a substance used to reduce friction between surfaces in contact which reduces heat generated when the surfaces move. The property of reducing friction bisetween two particles is known as lubricity.

What are the four types of lubricant?

Let’s start with the fundamentals. Lubricants are classified into four types: oil, grease, penetrating lubricants, and dry lubricants. The two most common lubricants you’ll encounter on a daily basis are oil and grease, but your facility will still use dry and penetrating lubricants.

What Colour is oil?

New oil is clean and golden in colour, but quickly turns dark brown or black when it’s in use. This darkening is quite normal and is nothing to worry about. It can even look black right after you refill it, when new oil mixes with leftover old oil. However, if it’s black and the texture is sludgy, it’ll need replacing.

What is the property of liquid oil?

Oil properties Of primary importance are bubblepoint pressure, solution gas-oil ratio (GOR), and formation volume factor (FVF). In addition, viscosity and interfacial or surface tension must be determined for calculations involving the flow of oil through pipe or porous media.

What is the safest lubricant to use?

List of possible lubrication alternatives

  • Aloe vera. Aloe vera is water-based and can improve skin hydration while also reducing irritation.
  • Plain yogurt. Plain yogurt could be a useful alternative lubricant.
  • Olive oil.
  • Virgin coconut oil.
  • Egg whites.