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

Hydraulic Motor

Can I Rebuild the JCB JS180 400/S8564 Final Drive Myself?

Maintaining heavy machinery, such as excavators, is crucial for ensuring their long-term performance and reliability. One of the most vital components of an excavator is the final drive, which plays a key role in the machine’s mobility and functionality. The JCB JS180 400/S8564 final drive is no exception. As an owner or operator, you might […]

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Reduction Gearbox

How Much Does It Cost to Replace an Excavator Travel Motor XJDH-01488 for HYUNDAI R28-7?

Excavators are powerful machines integral to the construction industry, known for their versatility and efficiency. A crucial component of these machines is the travel motor, responsible for moving the excavator on the job site. Specifically, the Travel Motor XJDH-01488 for the HYUNDAI R28-7 is a vital part that, when malfunctioning, can halt your operations. Understanding […]

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Slewing Reducer

What is a Swing Drive?

An excavator is a versatile and indispensable machine in the construction industry. With new, smart tools and job-specific attachments, the range of work excavators can perform continues to grow. Despite these advancements, many of the core components of an excavator remain the same—final drives and travel motors to propel and position the excavator, cylinders to […]

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Slewing Bearing Sealing

How to Judge the Deterioration of Grease in the CAT 336DL 353-0680 Swing Bearing?

The smooth operation of the CAT 336DL 353-0680 swing bearing heavily relies on the quality and condition of its lubricating grease. Proper lubrication not only reduces friction and temperature rise during operation but also extends the bearing’s lifespan. However, deteriorated grease can severely hinder the bearing’s performance and even cause damage. In this blog, we […]

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Gear Hardening

How to Determine the Deterioration of Grease in the CAT 336D 353-0490 Swing Bearing?

The smooth operation of the CAT 336D 353-0490 swing bearing heavily relies on the quality and condition of its lubricating grease. Proper lubrication not only reduces friction and temperature rise during operation but also extends the bearing’s lifespan. However, deteriorated grease can severely hinder the bearing’s performance and even cause damage. In this blog, we […]

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Gear Hardening

Understanding the Stability Issues of Turntable Bearing

Turntable bearings are essential components in various industrial applications, especially in construction equipment. These bearings are known for their ability to handle large axial loads, radial loads, and overturning moments, making them indispensable for heavy machinery. Ensuring their stability and performance is critical for efficient operation. This blog will delve into the factors affecting the […]

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