Hyundai R480-9 R520-9 390B-12100 Swing Reduction Gearbox For Crawler Excavator

Product Specification

Hyundai R480-9 R520-9 390B-12100 swing reduction gearbox for crawler excavator parts

The excavator slewing gearbox is one of the most critical core components of an excavator, primarily responsible for enabling the rotation of the upper structure. Driven by a hydraulic motor, the slewing gearbox transmits power to the slewing bearing, allowing the excavator to rotate flexibly during operation and perform various complex tasks such as digging, loading, and unloading. The performance of the slewing gearbox directly determines the operational precision, efficiency, and overall stability of the excavator. Therefore, the design and manufacturing of the slewing gearbox must meet extremely high technical requirements, including high load capacity, low noise, long service life, and excellent impact resistance.

We could supply the swing gearbox , also the inner spare parts as below model:

The working principle of the slewing gearbox is based on a gear transmission system. The power output by the hydraulic motor is transmitted through a set of gears to the slewing bearing, driving the upper structure of the excavator to achieve 360-degree rotation. During this process, the slewing gearbox must withstand significant radial and axial loads, especially when the excavator is performing heavy-duty operations. The gears and bearings inside the slewing gearbox are subjected to tremendous pressure. As a result, the internal gears of the slewing gearbox are typically made of high-strength alloy steel and undergo precise heat treatment processes to enhance their hardness and wear resistance. Additionally, the housing of the slewing gearbox is made of high-strength cast iron or cast steel to ensure structural stability under high-load conditions.

Company Description

GZ Belparts Engineering Machinery Co., Ltd, founded in September 2013, is a foreign trade company, which is specialized in
procuring and selling excavator parts.
Our main products are excavator hydraulic pump, hydraulic parts, travel motor and gearbox, swing motor, and gearbox. 

The founder of our company has more than 9 years experience in importing and exporting and is able to help customers solve various import and export problems. We maintain good long-term relationships with all kinds of accessories factories. Thus, we can help develop and produce new products according to customer’s requirements or samples, providing technical support to customers and offering perfect services.

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• 1. Commodities will be sent to all the countries all over the world.

• 2. Please make sure that your address and contact information is correct.

• 3. Products will be carefully checked before shipment.

• 4. Generally, items will be shipped 2 working days after the payment is received.

• 5.Should any delay happen due to logistic company and local customers or duties, we will inform via message or email immediately and your understanding will be highly appreciated.

• 6.Strong carton or wooden box for gear components. Wooden box for gearbox assembly

• 7.Delivery methods: By Sea, By air to the local international airport, By express like DHL TNT FEDEX

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