Also known as a drive belt, the fan belt is a vital part of any Forklift engine, and it plays an essential role in the proper functioning of any forklift. Without a good drive belt, many accessories would not be able to work. Lift Parts Warehouse is aware of this, and we want to share some considerations that you should consider when purchasing a new one to replace the damaged one. We assure you that you will not have any problems when selecting the appropriate model with this information.
Forklift Fan Belt Purpose
As part of the forklift cooling system, this forklift drive belt is an essential component of this vehicle type, responsible for transmitting a portion of the force generated by the engine to rotate different parts of the forklift. The fan belt is in charge specifically to:
The water pump circulates coolant through the engine to keep it at a safe operating temperature.
Without a properly functioning fan belt, these critical systems would quickly fail, leading to a breakdown of the forklift. Thankfully, fan belts are relatively easy and inexpensive to replace.
As a multifunctional component, these fan belts are often also called:
Forklift drive belt.
Forklift serpentine belt.
Forklift alternator belt.
Fan Belt Components
Body: It is made of a resistant rubber material. Although its shape depends on its position -given its flexibility- it is circular or oval if extended completely. The material used for its construction could be natural rubber (NR), nitrile rubber (NBR), synthetic rubber ( HNBR), etc.
Tensile Cords: These are various flexible lines made of nylon, fiberglass, steel wire, polyester, etc. It acts as a solid structure that makes the belt solid and stable.
Cover: This is a protective layer made of plastic. Its function is to provide endurance of the rubber body to resist the temperature increase generated by the high friction.
How a Fan Belt Works
Drive belts are found in engines with internal combustion. Its wedge-shaped face is positioned over the fan, water pump, and alternator pulleys; it connects all these elements with theenginecrankshaft.
When engine cylinders start to run, it creates a parallel movement that generates a crankshaft rotation. So, the fan belt takes advantage of this force to rotate the other components by their respective pulleys.
The inner face of the fan belt, with its wedge shape, covers a larger pulley surface, which allows a better grip and excellent stability. This characteristic permits that:
A better energy transmission.
Decrease the noise levels.
Reduce the bearing load.
In addition, the fan belt is made of high-strength materials that resist wear and tear—resulting in a longer lifespan for the fan belt and reduced maintenance costs for the forklift.
Fan Belt Types
Raw-edge Cogged (REC): This belt type has no sloping sides, and the drawstring can be seen. Given there is no fabric wrapping, the tension cords have more space to reinforce the belt. The underside Coggins reduce the bending resistance.
Raw-edge Plain (REP): It differs from the REC, in its rubber profile, given the drawstring has no space and its internal face has a plain shape that is positioned over the pulleys.
Wrapped belt: Also known as smooth belts. Its fabric layer protects the belt internals and provides resistance against abrasion, contamination, and oil.
Another way to classify the fan belt could be by:
Cross-sectional size: A,B,C,D, and E.
Transmission belt power.
Table 1. Equivalence between the cross-sectional size and transmission power of a drive belt
Width x Length (mm)
0.1 to 3
0.5 to 6
1 to 12
3 to 32
When Should I Replace a Forklift Fan Belt?
The fan belt on a forklift is an essential component responsible for driving the cooling fan that helps to keep the engine from overheating. Over time, the fan belt will stretch and wear out and eventually need to be replaced. However, trying to determine exactly when to replace a fan belt can be tricky, as the condition of the belt can vary significantly depending on how it has been used and maintained. As a general rule, it is recommended that a forklift drive belt be replaced every two years or after 2500 hours of use, whichever comes first. However, if the forklift is used in a particularly dusty or dirty environment, the belt may need to be replaced more frequently.
There are several reasons why this belt deteriorates and needs to be replaced. The most common are:
Cracking: The most common reason for this problem is the time of use. Like any component made of rubber, it changes its properties as time goes by. The belt will appear drier, with excessive cracking, and lose flexibility.
Glazed belt: A loss of belt tension causes a belt to slip. The high and constant friction between the belt and the pulley generates a substantial heat accumulation. As a result, the belt is polished until it has a glazing appearance. This problem occurs when the tensioner is flawed or worn. A belt glazing does not permit a proper grip, even if it is tightened again.
Fraying: Over time, the belt can become worn and damaged, causing it to tear apart at the edges. This problem is usually caused by misaligned pulleys, which put undue strain on the belt fibers. As a result, the belt will start to degrade and eventually break. In addition to being a visible problem, this issue can also be identified by a rubbing noise.
Contamination: The forklift drive belt is exposed to getting wet or soggy by oil from the engine or the coolant from the cooling system. If this happens, the belt will wear out, and its performance will be affected. A deep inspection is needed to find the leakage and solve the problem. Otherwise, a new belt installed will suffer the same issue. By taking these precautions, you can ensure that your forklift will continue to perform at its best.
We suggest you look at the following video and see how easy it is to install a new one.
How to Choose the Correct Fan Belt for your Forklift?
When you need to replace your forklift drive belt for your cooling system, we suggest you keep in mind the following considerations:
The type: A REC belt is appropriate for small pulleys. On the other hand, a REP is commonly used in pulleys with large diameters. For this reason, generally, raw-edge belts are more expensive than wrapped belts. Make sure you buy the best quality forklift drive belt, and that way, you will avoid unnecessary headaches.
Dimensions: Measure the width and the length of the cross-section and the nominal inside length. In this way, you can determine what belt class you need ( according to table 1).
Compare type and dimensions with the tag on the belt: The code marked on the belts provides a complete specification. For example, a belt AX2032 means a belt type "A," and an "X" indicates a Raw-edge Cogged type. Finally, the "2032" refers to its nominal inside length.
Lift Parts Warehouse Your Trusted Online Retailer
Lift Parts Warehouse is the best place to buy a new forklift fan belt. We have a wide variety of serpentine belts to choose from. Our inventory covers models for forklift brands like TOYOTA, NISSAN, HYSTER, CLARK, TCM, and many other brands, and our prices are very competitive. Our belts are made from high-quality materials that will last a long time, and we offer a money-back guarantee if you are not satisfied with your purchase.
If you have any questions about our products or services, do not hesitate to contact us. We count on a professional team with extensive experience with forklifts and spare parts. They would be more than happy to help you find the perfect belt for your needs.
Lift parts warehouse also has wide industry contacts and other resources that make it possible to mark down specific prices to save you money while purchasing a high-quality product. We assure same-day shipping on all orders by 2 PM PST and 1-3 day ground shipping from 19 warehouses. Buying with Lift Parts Warehouse is a decision you won't regret.
You can find the right forklift serpentine belt for your model without any problems with all this information. Selecting a new one on time is crucial to keep the water pump and cooling system fans rotating optimally - don't wait until they crack, glaze, or fray to replace it. At Lift Parts Warehouse, you'll find the perfect drive belt model at an unbeatable price with just a few clicks. Don't miss out on your chance to keep your forklift running smoothly and efficiently, without fail.