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

Gear Hardening

Comprehensive Guide to Performing a Load Test on a CAT365CL 397-9666 Swing Bearing

Ensuring the optimal performance and longevity of the swing bearing in a CAT365CL excavator, specifically the 397-9666 model, requires regular load testing. Load tests are crucial for verifying the bearing’s capacity to handle operational stresses, identifying potential issues before they become serious problems, and ensuring the safety and efficiency of the machine. This guide provides […]

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Hole Inspection

Comprehensive Guide on Replacing a CAT374F 378-9586 Swing Bearing

When it comes to heavy machinery maintenance, replacing a swing bearing, such as the CAT374F 378-9586, is a critical operation that requires precision and adherence to specific procedures. This blog will provide a detailed, step-by-step guide on how to replace this particular swing bearing, including necessary tools, preparatory steps, detailed replacement procedures, and post-replacement checks. […]

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carburizing furnace

Inspection Equipment for Excavator Slewing Bearings and Their Functions

Introduction Maintaining the operational integrity of an excavator requires meticulous inspection and maintenance of its slewing bearings. These bearings are critical for the rotation of the excavator’s upper structure and must be regularly checked for wear, damage, and alignment to ensure smooth and safe operation. This blog will delve into the specific inspection equipment used […]

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Gear Hardening

What Tools Are Necessary for Inspecting a CAT374 333-3009 Slewing Bearing?

Inspecting a CAT374 333-3009 slewing bearing requires a variety of specialized tools and equipment to ensure a thorough and accurate assessment. This blog will cover the essential tools needed for this task, providing detailed explanations of their functions and importance in the inspection process. Introduction to Slewing Bearing Inspection Importance of Regular Inspections Slewing bearings […]

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Hole Inspection

What are the Common Installation Errors for a CAT374 367-8361 Swing Bearing?

Introduction The CAT374 367-8361 swing bearing is a critical component of the Caterpillar 374 excavator. This large and powerful machine relies on the swing bearing to facilitate the rotational movement of the upper structure, allowing it to swing smoothly and efficiently. Proper installation of the swing bearing is essential to ensure the longevity and optimal […]

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Hole Inspection

How to Handle Corrosion on a Swing Bearing for a CAT 385C 199-4491

Understanding the Importance of Swing Bearings in Excavators The Critical Role of Swing Bearings Swing bearings, also known as slewing bearings, are essential components in heavy machinery like the CAT 385C excavator. They facilitate the rotational movement of the upper structure relative to the undercarriage, allowing the excavator to swing its arm and bucket to […]

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