Daewoo Excavator slewing bearing
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.
- 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



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.

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

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 8,000–15,000 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.





