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Daewoo Excavator slewing bearing

Luoyang Hengguan Bearing specializes in providing slewing bearings for the entire range of Daewoo (Daewoo/Doosan Daewoo) excavators. Our products cover classic DH and Solar series models. All bearings strictly adhere to OEM standards in terms of structural parameters, load capacity, and mounting hole positions, ensuring older models are revitalized and achieve high-efficiency slewing.

In Stock and Customization

Classic Models in Stock: We maintain a large inventory of classic Daewoo models, supporting global express delivery to minimize customer downtime losses.

1:1 Precise Measurement and Customization: For discontinued early Daewoo models or non-standard equipment, we support measurement and customization based on samples, addressing the pain point of finding spare parts for older models in the market.
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  • Product Description

Daewoo Excavator Slewing Bearing: OEM-Quality Replacement Solution

Luoyang Heng Guan Bearing Technology specializes in manufacturing Daewoo Excavator Slewing Bearing solutions for the complete range of DH and Solar series models. Our products maintain strict adherence to OEM standards in structural parameters, load capacity, and mounting configurations. Whether you operate a compact DH55 or a heavy-duty Solar 470, we provide precision-engineered bearings that restore your equipment to full operational capability. Each bearing undergoes rigorous quality control to ensure it meets the demanding requirements of excavation work.

Product Structure and Design

We manufacture three main structural configurations to match different Daewoo models and working conditions:

Single-Row Four-Point Contact Ball Bearing

This design suits light to medium-duty excavators. The structure provides smooth rotation with compact dimensions. It effectively absorbs multi-directional loads while maintaining stable operation during boom and bucket movements.

Single-Row Cross Roller Bearing

This configuration offers higher load capacity than ball bearings. The crossed roller arrangement provides excellent rigidity and precision. It works well for mid-range excavator models requiring enhanced stability.

Three-Row Roller Bearing

Our heaviest-duty option serves mining-grade excavators. This structure delivers exceptional impact resistance and rollover stability. It handles extreme loads in harsh working environments where equipment faces continuous stress.

Contact our engineering team: mia@hgb-bearing.com

Daewoo Excavator slewing bearing installation
Daewoo Excavator slewing bearing Customer Reviews
Daewoo Excavator slewing bearing factory

Compatible Daewoo Models

Our product range covers all major Daewoo excavator series:

Model Series
Specific Models
Mini Excavators
DH55, DH60, DH80, Solar 55, Solar 75
DH-5/DH-7 Series
DH130, DH150, DH215, DH220, DH225, DH258, DH280, DH300, DH320, DH330, DH370, DH420
Solar V/VII Series
Solar 130LC, Solar 140LC, Solar 170LC, Solar 210, Solar 220, Solar 225, Solar 250, Solar 300, Solar 400, Solar 420, Solar 470

Daew Model Product Parameters

Model
Part Number
Outer Diameter
Inside Diameter
Total height
Outer Height
Inner Height
Outer Hole Parameters
Inner Hole Parameters
Number of Teeth
109-00159
1682
1319
138
120
110
44
44
111
109-00165
1202
945
84
75
70
36-Ф22
36-M20
80

Material Selection and Heat Treatment

Base Material Quality

We use 50Mn and 42CrMo alloy steel. These materials undergo integral precision forging to improve internal density and mechanical properties. The forging process eliminates internal voids and ensures consistent strength throughout the component. This prevents structural deformation under heavy operational loads.

Raceway Hardening Process

The raceway receives precision medium-frequency induction quenching treatment. This process achieves stable surface hardness between HRC55 and HRC62. The hardened layer depth meets exact specifications for optimal performance. This treatment significantly improves wear resistance, fatigue resistance, and anti-spalling characteristics. Your product will maintain its performance over extended service periods.

Inventory and Custom Solutions

Stock Availability for Popular Models

We maintain substantial inventory of classic Daewoo models. This enables global express delivery to minimize your downtime costs. When equipment stops working, every hour counts. Our ready stock helps you get back to operation quickly.

Custom Measurement Service

For discontinued early Daewoo models or non-standard equipment, we offer measurement-based customization. Our engineers perform 1:1 precise measurement from your existing bearing. This solves the common pain point of finding spare parts for older excavators. We create replacement bearings that match your exact specifications without requiring original drawings.

Manufacturing Capabilities

Production Equipment

Our facility operates advanced machinery including:

  • CNC vertical lathes for large-diameter turning
  • CNC quenching machines for controlled heat treatment
  • CNC gear shapers for precise tooth profiles
  • Machining centers for complex features
  • Grinding machines for final surface finishing
  • Large gear hobbing machines for external gearing

Quality Assurance

Testing Procedures

Every bearing undergoes comprehensive testing:

  • Coordinate measuring machine inspection for dimensional accuracy
  • Vibration testing to ensure smooth rotation
  • Life testing to verify durability expectations
  • Load testing to confirm capacity ratings

Process Traceability

We maintain full traceability from raw material to finished product. Every manufacturing step receives strict quality control. This systematic approach ensures consistent product quality across all batches.

Daewoo Excavator slewing bearing Certification

Installation Guidance and Services

Engineering Consultation

Our technical team provides professional support for bearing selection, load calculation, and application analysis. We help you choose the right Daewoo Excavator slewing bearing configuration for your specific working conditions.

Installation Guidance

Proper Installation straightforwardly influences bearing performance and service life. We give nitty gritty Installation informational and specialized support  to guarantee redress mounting procedures.

On-Site Estimation and Reverse Engineering

When you need unique drawings or confront hardware out of date quality, our engineers can visit your location. We perform exact estimations of existing components and make substitution arrangements through reverse engineering. This benefit especially benefits administrators of more seasoned gear where unique parts are no longer available.

Customized Bearing Design Services

Beyond standard substitutions, we plan specialized arrangements for special necessities. Our capabilities incorporate:

  • Load-specific design optimization
  • Custom sealing arrangements for extreme environments
  • Modified gear parameters for special applications
  • Adapted mounting configurations

Our Partners

FAQ

Q: How do I know which slewing bearing fits my Daewoo excavator?

A: Send us your excavator show number or photographs, and our engineers will distinguish the rectify bearing.

Q: What is the ordinary service life of your slewing bearings?

A: With appropriate grease and upkeep, service life is ordinarily 8,00015,000 working hours.

Q: Can you supply bearing for suspended Daewoo models?

A: Yes. We can custom-manufacture substitution bearing based on your existing component.

Q: What is your conveyance time?

A: Stock models dispatch inside 7-15days. Custom orders ordinarily require 4-6 weeks..

Q: Do you give installation support?

A: Yes. installation guides are included, and specialized bolster is accessible upon request.

Q: How do your bearing perform in unforgiving environments?

A: Heavy-duty seals offer assistance avoid tidy and mud entrance whereas holding grease for solid operation.

Q: What guarantee do you offer?

A: We give guarantee scope against fabricating surrenders. Terms shift by show and application.

Q: Can you handle bulk orders?

A: Yes. We bolster armada upkeep programs with bulk generation capacity and need planning.

Contact Us for Your Bearing Needs

For technical inquiries, quotations, or order placement for Daewoo Excavator slewing bearing, reach our engineering team at mia@hgb-bearing.com.​​​​​​​

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Tell us your requirements — drawings, size, or application