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Trusted Manufacturer of Slewing Bearings & Large Machined Components

Company Telephone: +86 158 3855 3230

E-mail Address: mia@hgb-bearing.com

WhatsApp: 8615838553230

Company Location：NO9, Sanxi Road, Ximagou Industry Park, Jianxi district, Luoyang, Henan, China

Daewoo Excavator slewing bearing manufacturer

Validated Daewoo Excavator Slewing Bearing Manufacturing for Global Fleets

Your business deserves the transparency of a direct factory partner capable of proving technical expertise and inventory scale before you commit to a high-value procurement contract. Securing a verified manufacturing source ensures that every machine rotation remains precise and your project timelines remain uninterrupted.

When sourcing a Daewoo Excavator slewing bearing manufacturer, your procurement team is likely navigating a complex market flooded with intermediaries and inconsistent quality standards. The primary risk at this decision stage is not just the component itself, but the lack of accountability from suppliers who cannot provide raw material traceability or engineering blueprints. You need to verify that a partner possesses the heavy-duty machining capacity and metallurgical knowledge required to handle the extreme tilting moments and radial loads inherent in DH and Solar series operations without premature failure.

Luoyang Heng Guan Bearing Technology Co.,Ltd bridges this trust gap by offering a transparent production process for the entire range of Daewoo (Daewoo/Doosan Daewoo) excavators. The facility specializes in revitalizing older machines by strictly adhering to original structural parameters and mounting hole positions to ensure seamless installation. Whether your fleet requires a standard swing gear for a DH220 or 1:1 precise measurement and customization for a discontinued early model, the focus remains on addressing the market pain point of finding high-precision spare parts that match OEM load capacities perfectly.

As a dedicated manufacturer, the production floor follows ISO 9001, DIN, and RoHS rules. Each unit goes through strict ultrasonic flaw detection and raceway hardness testing to reach HRC 55–62. The factory cuts wait times from months to days by keeping a large stock of classic Daewoo models. This is made possible by a quality assurance system that meets GB national standards. This technical infrastructure has a service life of more than 10,000 hours, which is proof of its dependability for professional vendor approval and long-term fleet stability.

Compare the technical specifications and factory certifications against current procurement criteria to verify this standing as a top-tier industry supplier.

High-performance alloy steel forgings and induction-hardened gear teeth provide the structural integrity required for heavy-duty construction machinery rotation.

Related Products

Port Crane Slewing Bearing

1. Product Description: Port crane slewing bearing. This extra-large slewing bearing is designed specifically to meet the demanding load requirements under extreme operating conditions. Its core features include exceptional size, ultra-high strength, and excellent stability, making it an ideal foundational component for key equipment such as heavy-duty port machinery.
2. Product Structure: Three-row roller slewing bearing
3. Size Range: Product dimensions range from 4238mm x 270mm. Special sizes are available for custom design.
4. Materials: Base material: 42CrMo, 50Mn special alloy steel
Rolling elements: GCr15SiMn high-purity bearing steel
Seal material: Imported nitrile rubber or fluororubber
5. Applications:
Mainly used in various heavy-duty port machinery, such as port cranes, stackers and reclaimers, and container gantry cranes.

View Details

CT Machine Slewing Ring

Large Diameter Crane Slewing Bearing

CT Bearings

Internal Gear Rotary Slewing Bearing

Certified Manufacturer of OEM-Grade Daewoo Excavator Slewing Bearings

As a specialized Daewoo Excavator slewing bearing manufacturer based in Luoyang, the heart of China’s bearing industry, Luoyang Heng Guan Bearing Technology Co.,Ltd stands as a verified partner for high-precision Daewoo Excavator slewing bearings. We have dedicated over 20 years to perfecting the production of swing gears for the full range of Daewoo and Doosan equipment, covering more than 200 classic models including the legacy DH and Solar series. Our facility operates with advanced production lines that allow us to maintain a consistent inventory of 500+ units, ensuring rapid global response and minimized downtime for our international clients.

Our strength comes from being very good at technology. Following the strict rules of the GB and ISO 9001 quality management systems, each bearing is made from high-quality 42CrMo or 50Mn alloy steel. We use strict Ultrasonic Flaw Detection (UT) and Magnetic Particle Inspection (MT) to make sure the structure is solid. This way, we can be sure that our goods meet the OEM's load limits and fitting accuracy. For retired or non-standard models, our expert team offers 1:1 exact measurement and customization, fixing the critical industry pain point of finding parts for older machinery. We make sure that our slewing rings can handle high-intensity demolition and marine environments by adhering to international standards like DIN and ISO. We offer global fast shipping to keep customers' downtime to a minimum, and we offer full expert help for installation.

Contact our engineering team today to verify our factory credentials and request a detailed technical quote for your Daewoo fleet.

✅ 20+ Years Industry Expertise

✅ ISO 9001 & GB Certified

✅ 500+ Models in Stock

✅ 1:1 OEM Precise Customization

✅ 100% Ultrasonic Flaw Detection

Maximize Equipment Uptime with OEM-Standard Daewoo Swing Gear Solutions

Sourcing reliable Daewoo Excavator slewing bearing manufacturer for aging Daewoo or Doosan fleets often involves a risky choice between expensive original parts or low-quality alternatives that fail prematurely. Luoyang Hengguan Bearing bridges this gap by offering factory-direct manufacturing that adheres to strict ISO and OEM structural parameters. The production process revitalizes classic DH and Solar series excavators through precision-engineered components, ensuring high-load stability and seamless rotation for demanding construction environments.

Factory-Direct Precision Matching OEM Structural Standards
Each Daewoo excavator slewing bearing is made from high-quality alloy steel that has been formed and then put through a special process called induction hardening. By strictly following the original mounting hole positions and load capacity specifications, the manufacturing process gets rid of the common problems with generic replacements that cause them to rock and break down early. Even older Solar or DH series machines work with the same precision and structural integrity as the day they left the factory thanks to this strict process.
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Rapid Response Inventory for Global Logistics Efficiency
Downtime costs are a primary concern for construction fleet managers, which is why a comprehensive stock of slewing rings for classic Daewoo models is maintained. Warehouse strategies focus on high-demand DH series components, enabling immediate dispatch and global express delivery. By reducing lead times from months to days, this logistics framework helps operators minimize financial losses associated with idle equipment and maintain tight project schedules without compromising on component quality.
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Custom 1:1 Engineering for Discontinued Equipment
Finding spare parts for discontinued early Daewoo models or non-standard heavy machinery can be nearly impossible in the open market. A dedicated sample-to-production workflow utilizes 1:1 precise measurement techniques to recreate bearings for legacy machines. Engineers analyze the specific axial and radial load requirements of unique equipment, providing a customized solution that restores the swing performance of older excavators that would otherwise be decommissioned.
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Rigorous Lifecycle Testing for Extreme Field Conditions
To ensure durability in harsh demolition or forestry environments, every unit undergoes Ultrasonic Flaw Detection and Magnetic Particle Inspection to identify internal forge inclusions. Gear tooth accuracy and raceway hardness are measured to prevent pitting under high-torque operations. These professional-grade verification steps guarantee that each bearing exceeds standard fatigue life expectations, providing a reliable pivot point that manages simultaneous axial and tilting moment loads.
Review Quality Standards

15,000+ | Annual Production Capacity

1:1 | OEM Structural Parameter Matching

50+ | Countries Served Globally

ISO 9001 | Certified Quality Management

High-performance alloy steel ensures long-term resistance against gear tooth fatigue and seal degradation.

FAQs

1. Are you a direct manufacturer of Daewoo Excavator slewing bearings and where is your facility located?

Luoyang Hengguan Bearing is a specialized manufacturer located in Luoyang, China, the global hub for bearing technology, operating under ISO 9001, DIN, and RoHS standards. Our factory focuses exclusively on the engineering and production of slewing rings for heavy machinery, including the entire range of Daewoo and Doosan equipment. By maintaining an in-house production line, we control every step from 50Mn/42CrMo forging to induction hardening. This direct manufacturing model allows us to offer 100% traceability on all components, ensuring that each Daewoo Excavator slewing bearing meets rigorous industrial benchmarks. Feel free to request our factory video or ISO certification documents for verification.
2. Can you provide fast delivery for classic Daewoo models like the DH or Solar series?

Yes, we maintain a comprehensive inventory of slewing bearings for classic Daewoo DH and Solar models to support global express delivery within 3 to 7 business days. We recognize that equipment downtime can cost operators thousands of dollars daily, which is why we stock high-demand parts for the DH220, DH300, and Solar series. For units currently in stock, we provide same-day dispatch after quality inspection. This logistical efficiency, combined with our strategic location near major shipping ports, minimizes your maintenance window and restores your machine’s high-efficiency slewing capabilities quickly. Contact our sales team today to check the real-time stock status for your specific model.
3. How do you ensure your slewing rings meet OEM standards and international certifications?

We guarantee quality by adhering to ISO 9001, DIN, and GB standards, performing 100% Ultrasonic Flaw Detection (UT) and raceway hardness testing on every unit. Each Daewoo Excavator slewing bearing we produce undergoes a multi-stage inspection process, including Coordinate Measuring Machine (CMM) verification for mounting hole alignment and gear tooth accuracy. We target a raceway hardness of HRC 55-62 and a depth of 3-5mm to prevent premature pitting. These technical specifications ensure our bearings manage the massive simultaneous axial and radial loads typical of heavy digging. Every shipment includes a detailed inspection report and a 12-month warranty, providing you with the same reliability as an original OEM part.
4. Can you manufacture replacement bearings for discontinued or non-standard Daewoo machines?

Yes, we specialize in 1:1 precise measurement and customization for discontinued early Daewoo models or non-standard equipment based on your specific samples or technical drawings. For older machinery where original parts are no longer available in the market, our engineering team uses advanced reverse engineering to match structural parameters and load capacities perfectly. We support custom production runs even for single units, addressing the critical pain point of sourcing spare parts for vintage machines. This customization process typically takes 15 to 25 days, ensuring your older fleet is revitalized without requiring expensive structural modifications to the excavator’s undercarriage.
5. What are the key factors to consider when evaluating a manufacturer for excavator slewing bearings?

Evaluating a manufacturer for excavator slewing bearings requires looking at material grade, heat treatment precision, and adherence to international quality certifications like ISO or DIN. A reliable supplier should utilize high-grade 50Mn or 42CrMo alloy steel and provide proof of induction hardening on both the raceways and gear teeth to ensure long-term wear resistance. Furthermore, the ability to provide detailed technical data, such as axial and radial clearance tolerances (typically within 0.05mm to 0.20mm), is a hallmark of a professional manufacturer. Choosing a supplier with specialized expertise in the Daewoo/Doosan series ensures that the mounting hole positions and gear modules are a perfect fit, preventing costly installation errors.