PC1250 Excavator Bearings
2. Product Structure: A three-row roller design (slewing bearing): Two horizontal rows of rollers bear axial loads and overturning moments, while a vertical row of rollers bears radial loads. This ensures balanced load distribution and far superior impact resistance compared to conventional bearings.
3. Size Range: Outer Diameter 2200mm-3200mm; Inner Bore Diameter: 1800mm-2800mm and above.
Cross-Section Height: 150mm-300mm.
4. Material: Ring Material: High-strength 50Mn or 42CrMo alloy steel.
Rolling Elements: High-precision, high-hardness GCr15 bearing steel balls.
Seal Strips: Oil-resistant and wear-resistant nitrile rubber (NBR).
5. Applications: PC1250 and equivalent mining excavators (such as the Komatsu PC1250 and Caterpillar 6090), mining equipment, and large construction machinery.
PC1250 Excavator Bearings - Heavy-Duty Mining Equipment Solutions
When your PC1250 excavator operates in demanding mining conditions, you need bearings that deliver exceptional reliability. PC1250 Excavator Bearings from Luoyang Heng Guan Bearing Technology are specifically engineered for ultra-large mining excavators, providing superior performance in the most challenging environments. Our three-row roller slewing bearings and precision spherical plain bearings ensure your equipment operates smoothly with minimal downtime. These heavy-duty components are designed to handle extreme loads while maintaining consistent performance throughout their extended service life.
Why Choose Our Heavy-Duty Mining Bearings?
Your excavator faces tremendous stress during operation. Our bearings are built to handle these challenges head-on. The innovative three-row roller design distributes loads more effectively than conventional single-row alternatives.
Key Performance Features:
- Superior Load Distribution: Two horizontal roller rows manage axial loads and overturning moments
- Enhanced Radial Support: Vertical roller row handles radial forces efficiently
- Extended Service Life: High-precision GCr15 bearing steel construction
- Reduced Maintenance: Oil-resistant NBR seals minimize contamination
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Technical Specifications
Our mining excavator bearings feature robust construction tailored for heavy equipment applications:
Dimensional Range:
- Outer Diameter: 2200mm-3200mm
- Inner Bore Diameter: 1800mm-2800mm+
- Cross-Section Height: 150mm-300mm
Premium Materials:
- Ring Material: High-strength 50Mn or 42CrMo alloy steel
- Rolling Elements: Precision GCr15 bearing steel
- Sealing System: Wear-resistant nitrile rubber (NBR)
Applications for Large Mining Equipment
These specialized bearings serve critical functions across various excavator components:
- Slewing Platform: Smooth 360-degree rotation capability
- Traveling Mechanism: Reliable track drive support
- Boom Connections: Robust articulation points
- Attachment Points: Secure implement mounting
Your PC1250 excavator benefits from our precision manufacturing processes. Each bearing undergoes rigorous quality testing to ensure optimal performance in mining applications.

Manufacturing Excellence
Located in Luoyang, China's bearing industry hub, our facility combines decades of experience with modern technology. Our ISO9001-certified manufacturing process ensures consistent quality across every product.
Quality Assurance Process:
- Coordinate measuring machine verification
- Vibration testing protocols
- Comprehensive life cycle testing
- Full traceability documentation
Our team of over 50 engineers brings extensive expertise to every bearing design. We maintain precision grades from P0 to P4, ensuring your specific application requirements are met.

Custom Solutions Available
Understanding that mining operations have unique demands, we offer comprehensive customization services. Our engineering team can develop specialized bearing solutions based on your specific operating conditions.
Services Include:
- Technical consultation and design review
- Custom bearing development
- Installation guidance and support
- Equipment mapping and replacement planning
Global Trust and Reliability
Our bearings have proven their worth across international markets. Customers in over 50 countries rely on our products for their critical applications. From the United States to Germany, Australia to South Africa, our bearings deliver consistent performance.
We maintain substantial inventory levels for faster delivery. This ensures your equipment stays operational when you need replacement PC1250 Excavator Bearings.
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FAQ
Q: What makes these bearings suitable for PC1250 excavators specifically?
A: Our bearings feature the exact dimensional specifications and load ratings required for PC1250 applications. The three-row roller design provides superior load distribution compared to standard bearings.
Q: How do I determine the correct bearing size for my excavator?
A: Contact our technical team with your equipment serial number and application details. We'll help identify the precise specifications needed for your specific model.
Q: What is the typical service life of these bearings?
A: Service life varies based on operating conditions, but our high-quality materials and precision manufacturing typically extend bearing life significantly beyond standard alternatives.
Q: Do you provide installation support?
A: Yes, we offer comprehensive installation guidance and technical support to ensure proper bearing installation and optimal performance.
Q: Can you customize bearings for modified excavators?
A: Absolutely. Our engineering team specializes in custom bearing solutions for modified equipment and unique operating requirements.
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Contact Us
Ready to enhance your excavator's performance? Our technical team stands ready to help you select the optimal bearing solution. We provide comprehensive support from initial consultation through installation and beyond.
Contact our bearing specialists at mia@hgb-bearing.com for personalized assistance. Whether you need standard replacements or custom PC1250 Excavator Bearings solutions, we deliver the quality and reliability your mining operation demands.
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