Everything you Need to Know about Open Gear Grease

When it comes to protecting and preserving your open gears, there is one indispensable product: open gear grease. Open gear grease is a specially formulated and specialized product designed to be applied to the open gears in machinery of all types, from industrial equipment to recreational vehicles.

If you’ve ever had any questions about open gear grease, then this article is for you. We’ll answer all the important questions related to open gear grease and help you determine what type of lubricant is best for your open gear set-up. We’ll also discuss some other important things related to it.

By the end of this article, you’ll be able to have a better understanding of the importance of open-gear lube and how it can keep your equipment running smoothly for years to come. So, let’s get started with it.

Open Gear Grease

What Is Open Gearing and Its Purpose

Open gearing is the term used to describe any mechanism with teeth that mesh together, and which rely on mechanical energy for its operation.

This type of machinery is most commonly found in industrial and manufacturing applications, such as conveyor systems, crushers, and material-handling equipment.

Its purpose is to convert rotary motion from one part of a machine into linear motion in another part.

Open gearing requires regular maintenance, especially when it comes to lubrication. Without lubrication, the meshing parts will grind against each other and wear down more quickly.

That’s why it’s important to take the time to properly understand what kind of lubricant should be used for open gear sets, as well as how often they should be greased.

What Lubricant Is Used for Open Gear Sets

Open gear sets are important components in the machinery you use. To ensure that they remain in great condition, it’s important to use the correct lubricant for open gear sets.

The best type of lubricants for open gear sets is asphaltic, high-viscosity synthetic oil, semi-fluid grease type, and gel/polymer type open gear lubricant. For those who are looking for an even higher-grade lubricant for their open gear set, synthetic oils can be used as well.

Synthetic oils can provide superior protection against extreme temperatures, oxidation stability, and more. However, keep in mind that synthetic oils are more expensive than regular grease lubricants.

Whatever open gear lubricant you decide to use, make sure that it meets the manufacturer’s specifications and is suitable for the type of application you’re using it for.

Can I Use Grease Instead of Gear Oil

It’s a common question that many people want to know; can I use grease instead of gear oil?

The short answer is, both can be used but it is not recommended. The oil vs grease debate is an ongoing process. To get the actual answer, you need to dig into it.

Using grease instead of gear oil can be beneficial in some cases, but it’s not always the best solution. The grease is thicker and will coat the gears more effectively, helping to reduce friction and wear. This is especially helpful in machines that are used in dusty or dirty environments.

However, grease isn’t as effective at cooling the gears as gear oil. It’s also harder to clean off and can be a hassle to replace. So, if you’re looking for a longer-term solution for your gear lubrication, gear oil is probably the better choice.

At the end of the day, it really depends on the specific application and your preferences. If you’re looking for a quick and easy solution, then grease might be the way to go. But if you need something more reliable and long-term, then gear oil is probably the way to go.

Read: About Liquid Grease

How Often Should I Grease an Open Gear Set

Maintaining your open gear sets is an important part of keeping them running smoothly. But it can be hard to know when the right time to grease them is, especially if you’ve never done it before.

So, when should you grease an open gear set? Usually, you should lubricate your open gear sets at least every six months. This might sound like a lot—but if you don’t keep up with regular maintenance, the components will wear out faster and could cause costly damage down the line.

It’s worth noting that this timeline might vary slightly depending on the load placed on your machine and how often it’s used. More frequent maintenance is usually recommended for heavily loaded applications, and for industrial open gear systems in continuous use, lubricants can easily require monthly or weekly servicing.

It’s also essential to check for oil or grease leaks regularly. If they aren’t caught in time, they might cause more damage than expected. Keep a close eye on any areas where seals along the shafts or housings are exposed so you can address them quickly and effectively.

What Grade of Lubricant Is Used in the Gearbox

When it comes to gearbox lubricants, one thing that’s important to know is the grade of lubricant to use. So, what grade of lubricant is used in a gearbox?

Usually, Gearbox lubricants are classified by their viscosity, which is measured using the Society of Automotive Engineers (SAE) viscosity rating system. The most common grades of a gear oil are SAE 75W-90 and SAE 80W-90, which are suitable for most manual transmissions and differentials. However, some gearboxes may require specialized lubricants with higher viscosity or other unique properties, especially in heavy industrial applications. In that case, you may need to use ISO 220 or EP 460 gear Oils. So It is important to use the recommended grade of lubricant for the gearbox to ensure proper lubrication and protection of the gears and bearings.

On the other hand, most modern gearboxes require API GL-5 oil. And there are some individual differences that require a GL-5 oil. In some old-model automotive gearboxes, you may need to use Gl-4 Also. Although in some cases you can use Gl-5 Instead of GL-4.

Read Also About GL6 Gear Oil

open gear grease

Common Mistakes to Avoid When Greasing Open Gears

When greasing open gears, there are some common mistakes you need to avoid to make sure your application works efficiently and lasts longer.

Applying too Much Grease

Applying too much lubrication can actually have an adverse effect. Too much grease or oil can be forced off the gears by the load, resulting in higher temperatures, reduced efficiency, and accelerated wear.

The grease will also likely run off the gear teeth, eventually contaminating the environment. So, take care not to apply too much lubricant. It’s better to keep it light than overdo it.

Not Greasing Enough

On the flip side of that coin is not greasing enough. An inadequate supply of grease will not protect against wear and corrosion as effectively, eventually leading to damage and failure.

And again, a small amount of grease won’t prevent contamination in the environment; on the contrary, it will accelerate wear that leads to contamination.

Applying Improper Lubricant

It’s also essential to pick the right type of grease for your open gear application; if you don’t use a suitable type of lubricant designed for such applications then you might experience issues like unwanted noise or bearing failure due to seizure or corrosion.

Or worse, you might end up with contaminated lubrication that causes accelerated wear and breakdown of your system’s parts.

Understandably, some people are tempted to use cheaper alternatives like regular motor oil for their open gearing—don’t fall into that trap! Improper lubrication will cost you more in maintenance and repairs over time than it would have initially saved you in purchasing costs.

Final Thought

Open gear grease is an essential item to ensure the smooth and proper functioning of your machine.

By following these guidelines, you’ll ensure that your open gear set is lubricated to its maximum capacity and that it can function at optimal performance.

With proper maintenance and regular greasing, your machine’s open gear greasing will be ready for whatever you need it for. Thank you all.


Emon is Lubricants specialist who studied on Petroleum Engineering in UAE. He have more than 10 years experience on different kinds of lubrication including automobile troubleshooting.