Everything You Need To Know About Types of Equipment Lubrication

30 Mar 2023

Everything You Need To Know About Types of Equipment Lubrication

We have a long history with equipment lubrication. The concept dates back to the 14th century BC when Ancient Egyptians used animal fat to grease their chariot wheels. Nowadays, lubricants are used on everything from cars and motorbikes to large-scale industrial machinery. 

The market for engine lubricants exploded during the industrial revolution and continues to grow even today. With so many different products and applications, it can be confusing for those new to the industry.

To help smooth things over, this guide covers everything you need to know about the different types of equipment lubrication. 

• What is the meaning of Lubricant?
• What are the Benefits of Lubrication?
• What are the properties of Lubricants?
• What Kind of Substances are Known as Lubricants?
• What are the Different Types of Lubrication?
• Lubricants for:
  • Agriculture
  • Industrial Machines
  • Marine
  • Cars
  • Motorbikes
  • Electric Vehicles

What is the Meaning of Lubricant? 

A lubricant is a substance used to reduce friction between engine and equipment components. Usually in oil or grease form, a lubricant is applied to moving parts to prevent wear, overheating, and excessive stress, allowing for the smooth, ongoing operation of machine elements.

What are the Benefits of Lubrication?

The advantages of using lubrication usually depend on the application. Generally, however, they are used to improve the operation and lifespan of machinery from car engines to wind turbines and industrial equipment. 

When applied correctly, lubricants coat metallic surfaces with a film that reduces friction, rust, and corrosion. This has the power to prevent breakdowns, eliminating repair or replacement downtime and costs. Lubricants are also used to control the temperature of moving machinery parts by transferring heat away from critical elements. This all contributes to the smooth running of operations, limiting the need for maintenance and repair.

What are the Properties of Lubricants?

A good quality liquid lubricant is classified by a range of characteristics. Some of the core properties of oil lubricants are as follows:

• Viscosity Index: Oil lubricants are often graded by their viscosity (how thick the liquid is). Light engine oils with a low viscosity are better for vehicles in cold climates, while thicker oils perform better at warmer temperatures. Multigrade oils are engineered to work efficiently in both hot and cold environments. 
• Flash Point: This refers to the lowest temperature a flame momentarily appears on the lubricant’s surface when a naked flame is held next to it. The flash point should always be higher than the machinery’s operating temperature. 
• Pour Point: This is the temperature at which the lubricant becomes too viscous to flow effectively. Pour point depressants are commonly added to lubricants to lower this temperature and improve cold environment performance.  
• Demulsibility: Lubricant oils must resist emulsification when brought into contact with water to avoid the collection of dust and dirt, which leads to increased wear, friction and oxidation. 
• Anti-Wear: Lubricating oils should be able to withstand high loads without causing wear to machinery. They should never contain sulphur to prevent chemical corrosion. 
• Volatility: Very high temperatures can cause lubricant oils to evaporate. The loss of oil through evaporation is known as volatility – good quality oils should have low volatility at the necessary operating temperature.
• Oxidation Stability: Lubricants should be able to resist oxidation, which can make them less effective over time. This is especially important for lubricants used in high-temperature applications.

What Kind of Substances are Known as Lubricants?

Lubricants can be liquid, semi-solid, solid, and even gas. However, the most common substances used for equipment lubrication are oils and greases, which are widely used across industries from agriculture to automotive. 

What are the Different Types of Lubrication?

Oil 

Liquid lubricants can be made from mineral oil (derived from crude oil) or synthetic oil. A good quality oil lubricant has the properties listed above and often contains additives to help it function correctly in a range of different environments. Oil lubrication is most commonly used for car engines, hydraulics, industrial machinery and fast-moving parts.

Grease 

Grease is a semi-solid lubricant which is made from the same base stock as a liquid lubricant. Along with oil and additives, it also contains thickener to achieve the desired consistency for its application. 

Because grease has a dropping point – the temperature it starts to lose its structure and return to oil form – it is most often used for lower-speed components in heavy-duty machinery. It is also used for components that are inaccessible or sealed, such as gearboxes, to ensure they remain lubricated for a long time. 

Dry Lubricants  

Dry lubricants mostly consist of graphite in a spray form mixed with a solvent. This solvent eventually evaporates to leave a slippery residue which reduces friction. Dry lubricants tend to be used in situations when oil or grease cannot be used due to extreme environmental conditions. 

Penetrating Lubricant 

Penetrating lubricant is used to break up rust and loosen stuck parts. It is only used in one-off circumstances and never for the ongoing smooth running of machinery.

Types of Lubrication by Industry 

Lubricants for Agriculture 

Agricultural equipment lubricants include everything from hydraulic oils to keep tractors going in extreme conditions to grease for farm equipment and combine harvesters. 

Lubricants for Industrial Machines 

Boosting machine efficiency and protecting plants from periods of downtime, both oil and grease lubricants keep industrial machinery operating at peak efficiency.

Lubricants for Marine Equipment 

Keeping the shipping industry afloat, marine lubricants protect the engines and other moving components of sea vessels. Grease for ropes and bearings can also protect against water, rust and corrosion. 

Lubricants for Cars 

You’ve probably heard of engine oil, which is specially formulated to protect road vehicles from wear and deposits, ensuring engine durability. Other car lubricants such as greases are used for long-term protection for things like wheel bearings and chassis components.

Lubricants for Motorbikes 

Motorbike lubricant includes engine oil that can withstand a wide range of operating conditions, preventing engine wear and tear all year round. You’ll find engine oils formulated for two-stroke engines as well as multi-grade motorcycle oil.  

Lubricants for Electric Vehicles

Just like petrol and diesel engines need lubrication, electric vehicles need e-fluids to keep things running at optimal performance and extend battery life. 

Want to know more about equipment lubrication? Check out our blog for more guides and insights, or get in touch to ask us about Gulf products and applications.