Engrenagens para Escavadeira HITACHI OEM | Resistentes ao Desgaste e Substituição Direta

HITACHI OEM Excavator Sprockets | Wear-Resistant & Direct Replacement

Excavator Sprockets : Wear-Resistant Adaptive Transmission Efficient

Our excavator sprockets are forged from high strength alloy steel and precision heat treated to achieve surface hardness of over HRC55 and high wear and impact resistance.The gear teeth are processed according to the original standard, and are precisely meshed with the track links, so as to reduce the stutter and wear, and improve the walking stability and power transmission efficiency.Adapt to Carter, Komatsu, Sany, Hitachi and other mainstream brands of excavators of various tonnages, installation without modification, direct replacement.

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Advantages of Excavator Sprockets

High strength material, wear life increased by 60%

The surface hardness is up to HRC58-62. The core toughness remains good, and the impact and fatigue resistance are far superior to those of ordinary castings.The surface of the gear is carburized to form a hardened layer, the wear rate is 60% slower than that of similar products in the long-term engagement with the track links, and the service life can reach more than 5000 hours under normal operation, thus reducing the downtime loss caused by frequent replacement.

Precision meshing design improves transmission efficiency by 15%

The gear tooth parameters shall be processed in strict accordance with the original drawings, and the tooth profile and tooth pitch error shall be controlled within 0.05 mm to form seamless engagement with the track link.It avoids the problems of "jumping teeth"and"clamping stagnation" caused by the tooth shape deviation of the traditional driving wheel, reduces the power transmission loss to less than 5%, and significantly improves the walking speed and climbing ability of the equipment.

Full model coverage, installation without modification

The product is suitable for global mainstream brands such as Carter, Komatsu, Sany, Hitachi, Volvo, etc., covering all models of 1-50 tons, from mini excavators to large mining equipment.The positions of the driving wheel shaft hole and the bolt hole are precisely processed according to the original factory standard, and the old parts can be directly replaced during installation without cutting or adjusting the body structure, so that the ordinary maintenance personnel can complete the replacement within 1 hour, thereby greatly shortening the downtime of the equipment.

Full-process quality inspection, worry-free after-sales quality assurance

Each excavator sprockets is subject to three rigorous tests: the gear tooth accuracy is checked with a three-coordinate measuring machine, the dynamic balance test ensures that there is no chatter during high-speed rotation, and the bearing pressure test simulates three times the rated load to verify the strength.Only qualified products are allowed to leave the factory, and operation failures caused by quality problems are eliminated.All driving wheels are guaranteed for 12 months.

First prepare tools such as wrench, socket and Jack, ensure that the excavator is in shutdown state and pull up the hand brake, put the bucket on the ground to support the machine body, and make the track on one side of the driving wheel slightly off the ground.Check whether the new excavator sprockets model matches the equipment, confirm that the gear teeth, shaft holes and other key parts are not damaged, and clean up the soil and debris around the old driving wheel to prevent impurities from entering the transmission system during operation.

Loosen the fixing bolts connecting the drive wheel and the travel motor with a wrench, and record the position and quantity of the bolts (some models have locating pins, which need to be pulled out first).Slowly remove the old driving wheel. If it is rusted due to long-term use, apply a small amount of lubricating oil to soak it and then gently knock it to loosen it. Avoid brute force pulling in the process to prevent damage to the traveling motor shaft or peripheral parts.After disassembly, check whether the surface of the motor shaft is worn. If there is a slight scratch, it can be polished. If it is serious, it needs to be repaired first.

FAQ

What brands and tonnage of excavators can your excavator sprockets fit?

Our driving wheels cover the global mainstream brands, including Carter, Komatsu, Sany, Hitachi, Volvo, Doosan, etc., and are suitable for all models of 1-50 tons. Whether it is a mini excavator or a large mining machine, we can provide corresponding models.Only by providing the brand, model or tonnage of the equipment, the customer service can quickly match the driving wheel with precise adaptation and avoid wrong purchase.

How long is the service life of the driving wheel?What are the advantages compared with ordinary products?

Under normal operating conditions, our excavator sprockets have a service life of 5000-8000 hours , which is more than 60% longer than ordinary casting drive wheels.The invention has the advantages that the high-strength alloy steel is integrally forged and strengthened by double heat treatment, so that the hardness of the gear teeth is higher and the gear teeth are not easy to crack, the engagement wear with the track chain links can be reduced, and the abnormal loss of the track caused by the failure of the driving wheel can be reduced.

Do you need professional technicians to install the driving wheel?Can you replace it yourself?

The installation is not difficult, and ordinary maintenance personnel can operate it according to the instructions.Our driving wheel is processed according to the original standard, and the position of the shaft hole and bolt hole is accurate. There is no need to change the fuselage structure, just use conventional tools to disassemble the old wheel, align and install the new wheel, and tighten the bolt according to the standard torque.If you encounter problems during installation, you can contact customer service for video guidance, and some areas can also provide door-to-door installation services.

Is the cracking or deformation of the driving wheel teeth within the scope of the warranty?

Our excavator sprockets are provided with a 12-month warranty. The quality problems such as tooth cracking and body deformation not caused by human factors are within the scope of the warranty, and new parts can be replaced free of charge. However, the damage caused by human factors such as equipment overload, forced operation of the crawler stuck in hard objects, and installation errors are not within the scope of the warranty.If problems occur during the warranty period, they can be dealt with quickly by providing purchase vouchers and fault photos.

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What Our Clients Are Saying

Markus

The Volvo EC220 excavator in our fleet has changed many brands of driving wheels, but I am impressed by the precision of this excavator sprockets-the teeth mesh perfectly with the track links, and there is almost no noise when running.Now it has been used for 14 months, working intensively every day, and the wear of gear teeth is much lower than expected. German mechanics say that the material and technology have reached the original level.

Carlos

The Carter 349D excavator in the mine used to have to change the driving wheel every 4,000 hours, and the gear teeth were always cracked by gravel.After changing this product, it is now almost 7000 hours, and the gear teeth are still intact, not even a slight crack.The most unexpected thing is that because of the precise engagement, the wear rate of the track is also slow, which saves a lot of maintenance costs, and has been recommended to the surrounding mine owners.

Emily

We have a high demand for the delivery speed of equipment accessories. Last time, we urgently needed to adapt the driving wheel of Komatsu PC200. The company delivered the goods from the warehouse in 24 hours and arrived at the construction site in 3 days.The installer said that the position of the axle hole was exactly the same, and it was replaced in an hour. Now it has been used for 8 months, and it works smoothly on the asphalt road and gravel ground. There is no stutter or deviation at all. It is much more reliable than the local brand used before.

Yamada

Our mini-excavators mainly work in farmland and mountainous areas, and the previous driving wheels were always deformed due to bumps.The excavator sprockets have been used for almost a year, and the wheels are still straight on rough terrain, and the teeth and tracks are always close together.After testing, Japanese technicians said that its anti-fatigue performance even exceeded that of some Japanese brands, and its cost performance was very high.

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Why Choose Us

It is processed in strict accordance with the original drawing parameters, the tooth shape and tooth pitch error are controlled within 0.05mm, and the seamless engagement between the gear teeth and the track links is realized, thus completely avoiding the problems of "jumping teeth"and"clamping stagnation".The power transmission loss is reduced to less than 5%, the walking speed of the excavator is increased by 10% -15%, and the climbing ability and the power performance during heavy load operation are stronger.Even in muddy, gravel and other complex terrain, it can maintain stable transmission, reduce abnormal wear of the track, and prolong the service life of the whole walking system.