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.
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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

swing bearing

Identifying Faults in CAT 345B 136-2969 Swing Bearings

Swing bearings are integral components in heavy machinery, responsible for facilitating rotation and bearing substantial loads. The CAT 345B 136-2969 Swing Bearing, in particular, plays a crucial role in the efficient operation of various industrial equipment. Given its importance, identifying faults early is essential to prevent machinery downtime and costly repairs. In this blog, we […]

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Slewing Bearing CAT 349D 353-049

How to Maintain the CAT 345BII Swing Bearing 227-6094 for Optimal Operation

In the world of heavy machinery, where large equipment performs various rotating operations, the CAT 345BII Swing Bearing 227-6094 is a crucial component. This double-row slewing bearing ensures smooth operation and durability of machinery such as cranes and excavators. Proper maintenance of these bearings is essential to extend their lifespan and maintain their functionality. In […]

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swing bearings

Causes for Abnormal Sound of Cross Roller Swing Bearings

Cross roller swing bearings are essential components in various heavy machinery, known for their ability to handle high loads and ensure smooth rotation. However, like all mechanical parts, they are subject to wear and tear over time. One common issue that arises from prolonged use is the occurrence of abnormal noise during operation. These noises […]

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swing bearings

How to Improve the Lifespan of CAT 345BII Swing Bearing 227-6094?

In the realm of heavy machinery and construction, the CAT 345BII Swing Bearing 227-6094 plays a crucial role in ensuring the smooth and efficient operation of equipment such as cranes, excavators, and other large-scale machinery. To maximize the service life and feasibility of these bearings, it is essential to select the correct size and precision, […]

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Gear Hardening

What is a CAT 345BL 169-5536 Swing Bearing Suited for Temperature and Work Environment?

The CAT 345BL 169-5536 Swing Bearing is a critical component in the world of heavy machinery, specifically designed to handle substantial axial loads, radial loads, and overturning moments. Known for its robust construction and high safety factor, this swing bearing is commonly utilized in various mechanical equipment such as medium to large cranes, mining equipment, […]

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Gear Hardening

Cross Roller Slewing Bearing: How Much Do You Know?

In the realm of heavy machinery and engineering, cross roller slewing bearings are indispensable components that ensure smooth and efficient rotation in large rotary devices. These bearings are commonly found in applications such as bucket wheel excavators, heavy transport machinery, port machinery, mining machinery, and construction engineering machinery. Their role is pivotal in maintaining the […]

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