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

Excavator Swing Bearing

Clearance Measurement of Excavator Slewing Bearing During Assembly

Ensuring the precise clearance measurement of excavator slewing bearing during assembly is crucial for the machinery’s optimal performance and longevity. Accurate measurement of axial and radial clearances helps prevent operational issues and extends the bearing’s service life. This blog provides a detailed guide on how to measure these clearances during assembly. Introduction Slewing bearings are […]

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Gear Hardening

Detailed Structural Characteristics of Slewing Rings

Introduction Slewing rings, also known as slewing bearings or “machine joints,” play a crucial role in many industries, from construction and mining to military and wind power. These bearings are essential for facilitating rotational movements in heavy machinery such as cranes, excavators, and radar systems. This article delves into the various structural types of slewing […]

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Excavator Slewing Bearing

Repairing Raceway Peeling and Broken Teeth of Excavator Slewing Rings

Slewing rings are critical components in engineering machinery, enabling rotational movement in excavators and other heavy equipment. However, due to manufacturing defects or external factors, these bearings can experience raceway peeling and broken teeth, leading to operational issues. This article provides a detailed guide on identifying and repairing these problems to ensure the longevity and […]

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Excavator Swing Bearings Manufacturer

Essential Maintenance Guide for CAT 365C 199-4565 Slewing Bearing

CAT 365C 199-4565 Slewing Bearing, often referred to as the machine’s “joint.” Proper maintenance ensures the longevity and efficiency of the excavator. This guide outlines a comprehensive four-step process for maintaining the slewing bearing, complete with detailed instructions and specific data to help you keep your equipment in optimal condition. Introduction Maintaining the slewing bearing […]

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21M-25-11100 Swing Bearing for KOMATSU PC600-7 One exemplary model in the realm of swing bearings is the **21M-25-11100 Swing Bearing** designed specifically for the **KOMATSU PC600-7** excavator. This particular swing bearing stands out due to its advanced features, notable advantages, and the crucial role it plays in the functionality of heavy machinery.

Comprehensive Guide: Rotary Bearing Transportation, Installation, and Maintenance

Rotary bearings are critical components in various mechanical systems, requiring meticulous attention during transportation, installation, and maintenance. This blog provides an in-depth look at best practices to ensure the longevity and optimal performance of your rotary bearings. We’ll cover essential steps for handling, storing, installing, and maintaining slewing bearings. Introduction Slewing bearings are vital in […]

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E140 Swing Bearing

Comprehensive Analysis of Single Row Ball and Single Row Cross Roller Slewing Rings

Introduction Slewing rings, crucial components in many heavy-duty machinery and equipment, come in various designs to meet specific operational needs. Two common types are single row ball slewing bearings and single row cross roller slewing bearings. Understanding the structural performance and characteristics of each type is vital for selecting the appropriate bearing for specific applications. […]

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