Liebherr Excavator slewing bearing
Service & Support: We maintain a large inventory of stock items covering a full range of models. We also offer services to reverse-engineer (measure and map) existing bearings to produce brand-new, custom-made replacements.
Common Structural Types and Application Conditions
Single-Row Four-Point Contact Ball Structure
Features: Compact structure, flexible rotation, smooth operation, and low noise levels.
Capabilities:Capable of simultaneously withstanding axial loads, radial loads, and overturning moments.
Single-Row Cross-Roller / Three-Row Roller Structure
Features: High load-bearing capacity, high rigidity, and excellent resistance to impact and overturning forces.
Applications:Perfectly suited for extreme operating conditions involving heavy loads, high-frequency rotation, and mining/crushing operations.
- Product Description
Liebherr Excavator Slewing Bearing: High-Performance Turntable Solutions for Heavy-Duty Applications
This critical component for Liebherr Excavator Slewing Bearing—also known as a swing circle or turntable bearing—enables smooth 360-degree rotation while simultaneously handling enormous axial loads, radial forces, and toppling moments.
You're essentially relying on this bearing to connect your machine's upper carriage to the undercarriage. It's not just a rotating interface—it's a precision-engineered structural element that keeps your excavator stable during bucket penetration, material handling, and demolition work. From compact R914 models to ultra-class R9800 mining excavators, each machine depends on this bearing for reliable performance.
At Luoyang Heng Guan Bearing Technology, we manufacture slewing bearings that match Liebherr's demanding specifications. Our products deliver the durability you need for deep-pit mining, port operations, and high-reach demolition projects.Contact our engineering team: mia@hgb-bearing.com
Complete Model Coverage for Your Fleet
Our product range covers the entire spectrum of Liebherr equipment:
R-Series Crawler Excavators:R914, R924, R926, R934, R936, R944, R946, R954, R964, R966, R974, R976, R984, plus ultra-class models including R9200, R9350, and R9800.
A-Series Wheeled Excavators:Full compatibility with mounting interfaces and structural dimensions.
Key Technical Parameters
Parameter | Specification |
Diameter Range | 800mm – 4500mm (model dependent) |
Raceway Hardness | HRC 55-62 |
Hardening Depth | 3-5mm |
Material | 42CrMo / 50Mn alloy steel |
Gear Module | 6-20 (application dependent) |
Precision Grade | P0, P6, P5, P4 available |
Sealing Type | Multi-lip NBR/FKM |
Load Capacity | Custom-calculated per model |
Mounting Bolt Grade | 10.9 / 12.1 high-tensile |
Liebherr 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 |
LE982706001 | 1215 | 940 | 115 | 72 | 105 | 48-φ22 | 56-M20 | 94 | |
LE982751901 | 1215 | 940 | 115 | 72 | 105 | 48-Ф22 | 56-M20cloth | 94 | |
982751901 | 1215 | 940 | 115 | 72 | 105 | 48-Ф22 | 56-M20cloth | 94 | |
932833001 | 1215 | 940 | 115 | 72 | 105 | 48-Ф22 | 56-M20cloth | 94 | |
982751901 | 1215 | 940 | 115 | 72 | 105 | 48-Ф22 | 56-M20cloth | 94 | |
933816501 | 1355 | 1012 | 125 | 40 | 48 | 92 | |||
LE939500601 | 1355 | 1012 | 125 | 92 | 113 | 40-26through hole | 48-M24 | 92 | |
982752401 | 1355 | 1012 | 125 | 92 | 113 | 40-26through hole | 48-M24 | 92 | |
933628601 | 1365 | 1008 | 150 | 112 | 140 | 60-Ф26 | 72-M24cloth | 84 | |
933626601 | 1365 | 1008 | 150 | 112 | 140 | 60 | 72 | 84 |
Structural Configurations Matched to Your Application
Single-Row Four-Point Contact Ball Structure
This design suits your standard excavation needs. You get:
- Compact dimensions that save installation space
- Smooth rotation with minimal noise
- Simultaneous load handling: axial, radial, and tilting moments
- Ideal for general construction and material handling
Single-Row Cross-Roller and Three-Row Roller Structures
When you face extreme conditions, these configurations deliver:
- Maximum load capacity for heavy bucket work
- Superior rigidity against shock loads
- Enhanced resistance to overturning forces
- Perfect for mining, quarrying, and rock-crushing applications
Manufacturing Process: Built for Durability
Premium Ring Materials
We forge inner and outer rings from 50Mn or 42CrMo alloy steel. This process creates a dense grain structure that gives you high strength and excellent toughness. Your bearing won't deform under sudden impact loads.
Hardened Raceways
Our medium-frequency induction hardening process creates raceways with:
- Hardness: HRC 55-62
- Hardening depth: 3-5mm
- Precision-ground surface finish
This means you get superior resistance to wear, spalling, and fatigue. Your bearing maintains smooth rotation throughout its service life, even under continuous heavy loads.
Solving Your Real Operating Challenges
Heavy Load Capacity
Your concern:Raceway fracture under extreme bucket loads, or machine tipping during operation.
Our solution:We perform finite element analysis to optimize load distribution. Our strengthened raceway design handles impact forces without deformation.
Extended Service Life
Your concern:Frequent bearing replacement disrupts your project schedule and increases costs.
Our solution:Optimized heat treatment and wear-resistant materials extend operational life. We conduct accelerated life testing to verify durability before shipment.
Effective Sealing Performance
Your concern:Dust and mud contamination cause premature failure in mining and construction environments.
Our solution:Triple-lip sealing systems keep contaminants out. Our design prevents water and abrasive particles from reaching the raceway.
Custom Engineering for Special Requirements
If your application exceeds standard specifications, we provide:
- Load Capacity Customization:Engineered calculations for unusual boom lengths or attachment weights
- Non-Standard Dimensions:Custom diameters and heights to fit modified machines
- Special Sealing:Enhanced protection for underwater demolition or extreme dust environments
- Alternative Materials:Upgraded steels for arctic or high-temperature operations
Quality Assurance You Can Trust
Manufacturing Standards
- ISO 9001 certified production system
- RoHS compliant materials
- Adherence to DIN and ISO bearing standards
Inspection Protocol
Non-Destructive Testing:Ultrasonic and magnetic particle inspection detect internal flaws in forged rings.
Raceway Verification:We measure hardening depth and transition zone characteristics to ensure proper heat treatment.
Gear Accuracy:CMM (Coordinate Measuring Machine) verification ensures tooth profiles mesh smoothly with your swing drive pinion.
On-Site Measurement and Reverse Engineering Service
When you lack original drawings or face discontinued parts, our field service team provides:
- On-Site Assessment:Engineers travel to your location with precision measuring equipment
- Comprehensive Data Collection:We measure all critical dimensions—diameter, gear module, bolt hole positions
- Wear Analysis:Detailed inspection of damage patterns guides design optimization
- Optimized Redesign:We don't just copy the original—we improve durability based on actual wear patterns
- Manufacturing and Testing:Complete production with quality verification
- Installation Support:Technical guidance ensures proper mounting and adjustment
Global Experience and Support
We've supplied Liebherr Excavator slewing bearing replacements to over 50 countries, including:
- Mining operations in South Africa and Australia
- Port equipment in Germany and the United Kingdom
- Construction projects throughout the Middle East
- Infrastructure development in Southeast Asia
Why Choose Heng Guan Bearing?
Comprehensive Measure Range:Manufacturing capability from 50mm to 10,000mm size range covers any Liebherr model.
Multiple Structure Types:Single-row ball, cross-roller, double-row ball, three-row roller—we create the arrangement your application requires.
Custom Mechanical Components:Beyond slewing bearings, we make non-standard gear rings, heavy-duty Shafts, and couplings.
FAQ
Q: How do I know when my bearing needs replacement?
A: Signs incorporate intemperate hub play, harsh revolution, wobble, or metal particles in grease.
Q: How frequently ought to the bearing be lubricated?
A: For heavy-duty operations, grease up each 8–10 working hours.
Q: Can mounting jolts be reused?
A: No. Continuously utilize modern high-tensile jolts and take after the indicated fixing procedure.
Q: How can I recognize seal failure?
A: Water or metal defilement in oil shows seal damage.
Q: What is your conveyance time?
A: Common models dispatch inside one week. Custom or non-standard Bearing ordinarily require 3-4 weeks depending on specifications and current generation schedule.
Q: Do you give establishment guidance?
A: Yes. We give establishment enlightening, torque details, and specialized back.
Get Expert Support for Your Liebherr Equipment
Contact Us at mia@hgb-bearing.com with your Liebherr Excavator slewing bearing, machine model, current bearing dimensions, or specific application requirements.
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