Chain Lubrication Problems and How Chain Oil Solves Them

you ever wondered why some machine chains wear out too quickly or start moving in a jerky and noisy way? In many cases, the problem is poor chain lubrication.

Chain lubrication is a very important part of machine maintenance, but it is often ignored or done incorrectly. When chains are not lubricated properly, they can wear out faster, create more friction, and stop working smoothly. This can lead to serious operational problems and costly repairs.

One common mistake is using the wrong type of lubricant, such as used oils or thick greases. These products may not reach the important moving parts of the chain. As a result, the chain can stretch (chain elongation), move roughly, or even break over time. At Fubex Lubricants, we provide high-quality chain oils designed to keep your chains running smoothly. With fast shipping, a price match guarantee, and easy returns, getting the right lubricant has never been easier. Not sure which chain oil is best for your equipment? Call us at +971 50 544 9614 — our friendly team is always ready to help you choose the right product.

Awais I., Sales Director, says, “Using the wrong chain oil can cause excessive friction, faster wear, and poor chain performance. Choosing the right chain oil helps chains run smoothly, reduces wear, and keeps industrial machines operating reliably for a longer time.”

Using the right lubrication method and the right chain oil helps machines run smoothly, reduces wear, and extends the life of the chain.

The Importance of Using the Correct Lubricant

Choosing the right lubricant starts with understanding how chains work. Chains usually operate under boundary lubrication conditions. This means the metal parts of the chain move very close to each other with very little oil separating them. Because of this, the lubricant must be able to reach the small spaces between the moving parts.

For example, grease is not always a good choice for chains. Grease is thick and cannot easily flow into important areas of the chain, such as the pin, roller, and bushing. When these parts do not get enough lubrication, the chain can start to stretch over time. This stretching is called chain elongation, and it can eventually lead to chain breakage.

Using old or used lubricants can also cause problems. These oils may contain sludge or carbon deposits. Such contaminants can block the small openings where oil needs to enter the chain. When this happens, the lubricant cannot properly protect the moving parts, which increases the chance of mechanical damage.

Another common mistake is using the wrong type of oil, such as hydraulic oil. Many chains need oils with higher viscosity, like ISO VG 320, to handle heavy pressure and heat during operation. They may also need extreme pressure (EP) additives to protect the metal surfaces.

If the lubricant does not have the right viscosity or additives, the chain can experience more friction, faster wear, and lower efficiency. Over time, this can lead to serious machine problems or even equipment failure.

The Role of Tackifiers in Chain Lubrication

Tackifiers are special additives used in many chain lubricants. They help the lubricant stick better to the metal surface of the chain. Because of this, the oil stays on the chain instead of dripping off during operation.

This is very important in industrial machines where chains work under heavy loads and high temperatures. When the lubricant stays in place, it can continue to protect the moving parts and reduce friction.

In many factories, chains are used to move products from one place to another. If the lubricant drips or spreads, it may contaminate the products being transported. Using lubricants with tackifiers helps prevent this problem by keeping the oil where it belongs—on the chain.

This is especially important in industries like food and beverage production and precision manufacturing, where cleanliness and product quality are very important.

By helping the lubricant stay on the chain, tackifiers also protect the chain from moisture, dust, and other contaminants. This helps reduce wear and keeps the chain working smoothly for a longer time.

Chains for Drives

There are three main types of chains used in drive systems:

• Precision Roller Chain – This type follows the ASME B29.1 standard and is one of the most common chains used in machines.
• Silent (Inverted-Tooth) Chain – This chain follows the ASME B29.2 standard and runs more smoothly than roller chains.
• Engineering Steel Offset Sidebar Chain – This type follows the ASME B29.10 standard and is designed for heavy-duty work.

Roller chains are made with pitches from 0.25 to 3.0 inches. They are used in many machines and can work in slow, medium, or high-speed drives. Silent chains have pitches from 0.375 to 2.0 inches. They run more smoothly and are mostly used in high-speed machines.

Engineering steel chains have pitches from 2.5 to 7.0 inches. These chains are stronger and are usually used in slow-speed heavy-duty drives.

Chains for Conveyors

Chains are also widely used in conveyor systems that move materials from one place to another.

Both precision roller chains and engineering steel roller chains are commonly used in conveyors such as:

• Slat conveyors
• Apron conveyors
• Pusher conveyors
• Crossbar conveyors

Other types of chains are also used in conveyor systems. For example:

• Welded steel chains are often used in scraper and drag conveyors.
• Forged link chains are commonly used in overhead trolley conveyors and floor conveyors.

Different conveyor systems may also use roller chains, rollerless chains, cast chains, polymeric chains, flat top chains, and silent chains.

How Chains Fail

Chains can fail in three main ways: tensile failure, fatigue failure, and wear.

Tensile failure happens when the chain carries too much load. The chain stretches too much or may even break apart because of the heavy tension.

Fatigue failure happens when the chain is loaded again and again over time. Even if the load is not extremely heavy, small cracks can slowly form in the chain parts. These cracks grow larger until the chain finally breaks.

Wear failure happens when the chain parts rub against each other for a long time. Friction, dirt, corrosion, or abrasion slowly remove material from the chain. When this happens, the chain may no longer fit properly on the sprockets, or it may become too thin and break.

Proper lubrication is very important because it reduces wear and helps the chain last longer.

Extremely Low-Temperature Chain and Conveyor Applications

Many low-temperature industrial chains and conveyors are used in food processing plants. In these environments, temperatures can go far below -40°F (-40°C). At these very low temperatures, normal mineral-based lubricants often stop working properly because they become too thick or freeze.

In food production, freezing is usually a continuous process. For small food items like cut fruits, vegetables, or small pieces of meat, freezing tunnels use cold air to freeze the products. In these systems, fans move very cold air around the food, so conveyors may not always be needed.

However, when the food products are larger or heavier, conveyors are required to move them through the freezing system. One common machine used for this is a cryogenic spiral freezer. In this equipment, the chain does not rotate the system—that job is done by a gearbox. Instead, the chain supports and moves the conveyor that carries the food.

In these extremely cold conditions, PAO (Polyalphaolefin) synthetic oils are often used. These oils work very well at low temperatures and can still flow smoothly even in extreme cold. They are also suitable for H1 food-grade applications, which means they can be safely used in food processing equipment.

When choosing a lubricant for very cold environments, it is important to find the right balance between viscosity and anti-wear protection. At temperatures between -70°F (-57°C) and -90°F (-68°C), the ability of the lubricant to flow properly becomes very important.

Food processing companies are always trying to lower freezing temperatures to improve production speed. In fact, when the temperature drops by about 15°F (-10°C), the freezing speed can almost double.

Another challenge is that freezing equipment must go through a CIP (Clean-In-Place) cleaning process. During CIP cleaning, the equipment is washed with chemicals at normal or higher temperatures. Because of this, the lubricant must also be strong enough to protect the equipment from wear and corrosion before, during, and after cleaning.

Final Takeaways

Chains are an important part of many industrial machines, but they can face several problems like friction, wear, rust, contamination, and lubricant loss. When the wrong lubricant is used or lubrication is not done properly, these problems can lead to reduced efficiency, frequent maintenance, and even chain failure. 

Using a specialty chain oil is a smart solution because it is designed to handle heavy loads, high temperatures, and harsh working conditions. It can penetrate critical chain parts, reduce friction, protect against corrosion, and stay in place during operation. With the right chain oil, businesses can improve machine performance, extend chain life, and reduce downtime, keeping their equipment running smoothly and reliably.

FAQs

Q1: What are the benefits of chain oil?

Chain oil helps chains and sprockets work better and last longer. It reduces friction between moving metal parts and helps prevent wear and damage. Chain oil also protects the metal from rust and corrosion. When chains are properly lubricated, they run more smoothly and do not need to be replaced as often.

Q2: Why is oil applied to chains?

Oil is applied to chains to keep them running smoothly and efficiently. When a chain moves, its metal parts rub against each other. Chain oil forms a thin protective layer between these metal surfaces. This layer reduces heat, lowers friction, and protects the parts from wear and rust. As a result, the chain works better and lasts longer.

Q3: What happens if you don’t oil your chain?

If you do not oil your chain, the metal parts will rub directly against each other. This creates more friction and heat, which causes the chain to wear out faster. Over time, the chain may stretch, become weak, or even break. Without lubrication, the chain is also more likely to rust and corrode, especially in dusty or wet environments.