Excavator Swing Bearing Manufacturer

Excavator Parts

Xuzhou National Construction Machinery

Welcome to Xuzhou National Construction Machinery Co., Ltd.! We offer over 1,000 types of excavator swing bearings and are committed to being a leading manufacturer and supplier of top-quality engineering machinery components. Our primary products include swing bearings, hydraulic pumps, final drives, swing reduction gearboxes, excavator final drive planetary carriers, hydraulic motors, slewing reducers, travel reducers, gearbox parts, slewing gears, and excavator rotary shafts.

Based in Xuzhou City, China, our company is located in the heart of the engineering machinery industry. Our mission is to provide superior products and exceptional service to our clients, ensuring their utmost satisfaction. We consistently strive for excellence, providing high-performance and durable products to our clients.

Get in touch with us now for the latest quote.
Excavator swing bearing types
Common types include:
1. Single-row four-point contact ball bearings: These are simple in design and suitable for light axial and radial loads, typically used in small and medium excavators.
2. Double-row different diameter ball bearings: These can handle larger loads and offer higher stability, ideal for medium and large excavators.
3. Crossed roller bearings: Featuring crisscrossed rollers, they can withstand significant loads and torque, perfect for high precision and rigidity applications.

4. Three-row roller bearings: These distribute loads across three rows, providing the highest load capacity, mainly used in super-large excavators.
CNC gear shaper
Excavator Spare Parts ,slewing bearing replacement
Excavator slewing bearing replacement involves several key steps to ensure proper function and longevity. First, safely position the excavator and detach the superstructure. Remove any hydraulic connections and electrical wiring. Unbolt the old slewing bearing carefully to avoid damaging adjacent components. Clean the mounting surfaces thoroughly to remove debris and old grease. Position the new slewing bearing accurately, ensuring alignment with bolt holes. Secure it with new bolts, torquing them to the manufacturer’s specifications. Reconnect all hydraulic and electrical systems, then test the slewing function to ensure smooth operation. Regular maintenance and proper lubrication are crucial to prolong the bearing's life.
CNC vertical lathe
Excavator Slewing Ring,Turntable Bearing Wear Signs
Signs of wear in excavator slewing ring bearings include several key indicators. Look for unusual noises like grinding or clicking during operation, which suggest internal damage. Increased play or looseness in the bearing can be felt as excessive movement in the excavator's upper structure. Visible leakage of grease or oil around the bearing indicates possible seal failure. Irregular or jerky slewing motion can point to uneven wear or internal issues. Additionally, check for metal shavings or debris in the lubricant, a clear sign of internal wear and tear. Regular inspections and timely maintenance can prevent severe damage and costly repairs.

Production Equipments

It integrates forging, annealing, turning, salt bath quenching, grinding, assembly, and precision rolling element production, and specializes in the design and production of various series of high-speed, low-noise, long-life swing bearings.

Testing Equipments

Precision testing equipment can conduct precise detection and analysis of size, roughness, shape, contour, and spatial position of bearings and accessories.Bearing life and performance testing equipment can simulate actual working conditions for bearing life, noise (howling), dustproof, waterproof (mud), grease leakage, temperature rise, high (low) temperature resistance, etc. The laboratory is equipped with multiple test engineers who can design test plans according to customer requirements.

Swing Bearing Display Area

Our Replacement Slewing Bearings

At our company, we understand the critical role that swing bearings (also known as swing circles, ring gears, ring bearings, slewing ring bearings, slewing rings, and turntable bearings) play in the smooth and efficient operation of your equipment. That’s why we offer an extensive inventory of swing bearings suitable for a variety of manufacturers and machines.

Our replacement slewing bearings are meticulously designed and manufactured to meet or exceed the highest industry standards. These bearings are known for their robustness, precision, and durability, ensuring that your equipment remains operational and efficient even under the most demanding conditions. One of the significant advantages of choosing our replacement slew bearings is the substantial savings they offer over expensive OEM parts. 

Knowledgeable Excavator Parts Specialists Search for You

We take pride in not only the quality of our products but also the expertise of our team. Our parts specialists possess extensive knowledge and a long history in the industry, ensuring that you receive the best possible advice and support. Whether you are unsure about the specific part you need or have questions about compatibility, our experts are here to provide you with peace of mind. Their in-depth understanding of various manufacturers and machine models means you can order with confidence, knowing you are getting the right part for your needs.

Contact our parts specialists today and experience the benefits of working with a trusted partner in the industry. Your machinery’s performance and longevity are our top priorities, and we are committed to helping you achieve both.

Excavator Swing Bearing

Excavator Swing Bearing

Troubleshooting Common Issues with Slewing Bearing CAT 349D 353-0490

Slewing bearings are critical components in heavy machinery like the CAT 349D excavator. Ensuring smooth rotation and efficient operation is vital for the longevity and performance of your equipment. However, these components can encounter several issues during their lifecycle. This blog delves into the common problems with slewing bearing CAT 349D 353-0490, specifically model 353-0490, […]

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Common Challenges and Solutions in Maintenance and Repair of Swing Bearings 227-6037 for CAT 345DL

Excavators are indispensable in the construction and mining industries, and one of their most critical components is the swing bearing. The swing bearing, particularly the Swing Bearings 227-6037 for CAT 345DL, supports the upper structure’s weight and enables its rotation. A failure in this component can lead to significant damage and pose dangers to the […]

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Overview of Excavator Turntable Bearings : Key Components and Functions

Turntable bearings are essential components in excavators, ensuring the stability and smooth operation of these powerful machines. Designed to enable a full 360-degree rotation, turntable bearings are critical for the efficient movement of materials and effective excavation operations. This article provides an in-depth overview of Excavator Turntable Bearings, highlighting their key components, functions, and maintenance […]

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How Does an Excavator Slewing Bearing CAT 350 1026392 Work?

Understanding the operation of an excavator slewing bearing CAT 350 1026392 is crucial for appreciating its role in heavy machinery. Slewing bearings are essential components that support axial loads, radial loads, and tilting moments. Developed in the late 1940s, these bearings have evolved to offer robust and reliable performance in various applications. This blog will […]

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Excavator Hydraulic Pump Failure Warning Signs

In the realm of heavy machinery, the hydraulic pump in an excavator plays a crucial role akin to that of the heart in a human body. It is responsible for pumping hydraulic fluid, thereby providing the pressure and power necessary for the excavator to perform various tasks. When the hydraulic pump in your John Deere […]

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Gear and Slewing Ring Hardening Solutions: Enhancing Strength and Performance

In the world of engineering, gears and slewing rings are indispensable components that play crucial roles in various applications. These essential parts are responsible for transmitting power, facilitating rotation, and supporting heavy loads across diverse industries, including automotive, aerospace, mining, and manufacturing. To withstand demanding conditions and ensure their longevity and performance, hardening solutions for […]

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