When your equipment demands exceptional load capacity and precision under extreme conditions, a Slewing Ring Bearing with triple-row roller configuration delivers unmatched performance. This specialized bearing system combines three dedicated roller rows to handle massive axial, radial, and moment loads simultaneously. The robust design makes it the preferred choice for heavy industrial equipment where standard bearings fail. Our product solutions provide reliable rotation support for demanding applications across metallurgy, construction, and marine industries.

The triple-row roller product represents the pinnacle of heavy-duty rotational technology. This bearing system features three separate roller rows within a single unit, each optimized for specific load types. The configuration delivers superior load distribution and rigidity compared to single-row or ball-type alternatives.
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Bearing Type
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Model Number
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Internal Diameter (d) mm
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External Diameter (D) mm
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Width (B) mm
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Static Load Capacity (C₀) kN
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Dynamic Load Capacity (C) kN
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Rolling Element Type
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Material
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Sealing Structure
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Lubrication Method
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Application Scenarios
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Weight kg
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Single-row Four-point Contact Ball Slewing Ring
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011.25.400
|
400
|
540
|
48
|
620
|
280
|
Steel Ball
|
42CrMo
|
Double Lip Rubber Seal
|
Lithium-based Grease (NLGI 2)
|
Small cranes, aerial work platforms
|
42
|
|
|
011.25.500
|
500
|
650
|
56
|
850
|
380
|
Steel Ball
|
42CrMo
|
Double Lip Rubber Seal
|
Lithium-based Grease (NLGI 2)
|
Tower cranes, port loading machinery
|
68
|
|
|
011.25.630
|
630
|
800
|
65
|
1200
|
550
|
Steel Ball
|
42CrMo
|
Double Lip Rubber Seal
|
Lithium-based Grease (NLGI 2)
|
Mobile cranes, concrete mixers
|
105
|
|
|
011.25.800
|
800
|
1000
|
75
|
1800
|
820
|
Steel Ball
|
42CrMo
|
Double Lip Rubber Seal + Dust Cover
|
Lithium-based Grease (NLGI 2)
|
Large-tonnage truck cranes
|
185
|
|
Single-row Crossed Roller Slewing Ring
|
021.20.315
|
315
|
430
|
40
|
950
|
420
|
Crossed Roller
|
42CrMo
|
Metal Face Seal
|
High-temperature Lithium-based Grease
|
Robotic arms, precision rotary tables
|
35
|
|
|
021.20.400
|
400
|
520
|
45
|
1500
|
680
|
Crossed Roller
|
42CrMo
|
Metal Face Seal
|
High-temperature Lithium-based Grease
|
CNC machine tools, radar antennas
|
58
|
|
|
021.20.500
|
500
|
650
|
50
|
2000
|
920
|
Crossed Roller
|
42CrMo
|
Metal Face Seal
|
High-temperature Lithium-based Grease
|
Precision machining centers, satellite communication equipment
|
92
|
|
|
021.20.630
|
630
|
780
|
55
|
2800
|
1250
|
Crossed Roller
|
42CrMo
|
Metal Face Seal + Oil Seal
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High-temperature Lithium-based Grease
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Large precision rotary platforms
|
145
|
|
Double-row Ball Slewing Ring
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022.30.630
|
630
|
850
|
70
|
2500
|
1100
|
Double-row Steel Ball
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50Mn
|
Combined Seal (Rubber + Metal)
|
Grease + Periodic Oil Injection
|
Medium-tonnage cranes, ship unloaders
|
168
|
|
|
022.30.800
|
800
|
1060
|
80
|
3200
|
1450
|
Double-row Steel Ball
|
50Mn
|
Combined Seal (Rubber + Metal)
|
Grease + Periodic Oil Injection
|
Large cranes, wind turbine yaw systems
|
245
|
|
|
022.30.1000
|
1000
|
1320
|
95
|
4500
|
2000
|
Double-row Steel Ball
|
50Mn
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Combined Seal (Rubber + Metal)
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Grease + Periodic Oil Injection
|
Wind turbine pitch systems, mining machinery
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380
|
|
Three-row Roller Slewing Ring
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131.40.1000
|
1000
|
1400
|
105
|
6500
|
2800
|
Three-row Roller
|
42CrMo
|
Special Dust Seal + Oil Seal
|
Centralized Lubrication System
|
Heavy-duty excavators, tunnel boring machines
|
520
|
|
|
131.40.1200
|
1200
|
1600
|
120
|
8000
|
3500
|
Three-row Roller
|
42CrMo
|
Special Dust Seal + Oil Seal
|
Centralized Lubrication System
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Offshore platforms, metallurgical equipment
|
750
|
|
|
131.40.1500
|
1500
|
1950
|
140
|
12000
|
5000
|
Three-row Roller
|
42CrMo
|
Special Dust Seal + Oil Seal
|
Centralized Lubrication System
|
Super heavy-duty machinery, large ship cranes
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1280
|
|
Ball-Roller Combined Slewing Ring
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031.35.630
|
630
|
880
|
85
|
3000
|
1300
|
Ball + Roller
|
42CrMo
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Double Lip Rubber Seal + Metal Dust Cover
|
Lithium-based Grease + Periodic Oil Injection
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Mixed load machinery, port container cranes
|
210
|
|
|
031.35.800
|
800
|
1100
|
95
|
4200
|
1800
|
Ball + Roller
|
42CrMo
|
Double Lip Rubber Seal + Metal Dust Cover
|
Lithium-based Grease + Periodic Oil Injection
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Large-scale stacking machines, heavy-duty transfer equipment
|
320
|
Triple-Row Stack Specialization
The bearing joins three unmistakable roller rows:
Two Pivotal Roller Lines: Handle bidirectional pivotal loads and tilting minutes. These rollers adjust parallel to the bearing's hub heading, giving devoted pushed stack support.
One Outspread Roller Push: Particularly oversees outspread strengths with rollers situated opposite to the pivotal columns. This division avoids stack obstructions and maximizes efficiency.
90° Crossed Arrangement
The round and hollow rollers in hub columns utilize a 90° substituting setup. This course of action guarantees full line contact with raceways, upgrading inflexibility and minimizing flexible distortion beneath overwhelming loads.
Multi-Ring Structure
The three-ring development (inward, external, and halfway rings) gives precision-machined raceways for each roller push. This coordinates plan dispenses with isolated bearing congregations whereas lessening establishment complexity.

Exceptional Load Capacity
Our Slewing Ring Bearing handles ultra-heavy combined loads including radial forces up to several hundred tons and tilting moments reaching thousands of kN·m. This capability suits large-scale equipment where conventional bearings prove inadequate.
Superior Rigidity
Three-row line contact design minimizes deflection under heavy loads or rapid motion changes. This maintains positional accuracy for precision applications requiring stable rotational control.
Compact Installation
Despite heavy-duty performance, the integrated structure offers a compact footprint compared to multi-bearing assemblies. This proves valuable for large equipment with limited installation space.
The triple-row roller bearing excels in heavy equipment applications:
Our manufacturing process incorporates a three-level quality control system:
Each bearing experiences vibration testing and life testing confirmation. Our ex-factory capability rate surpasses 99.9%, guaranteeing dependable execution in unforgiving mechanical conditions.
Fast Conveyance System
We keep up stock of over 1,000 standard bearing sorts for 48-hour conveyance. Custom non-standard orientation utilize optimized secluded generation, accomplishing conveyance cycles 70% quicker than industry average.
Technical Support
Our group gives comprehensive establishment direction, operation observing, and upkeep arranging. Worldwide on-site mapping administrations guarantee idealize hardware adjustment for substitution scenarios.
Full-Lifecycle Management
From starting determination through end-of-life substitution, we offer total bearing lifecycle back counting farther checking, preventive upkeep, and execution optimization.

With 30 a long time of bearing industry involvement, we combine autonomous fabricating capabilities with broad supply chain integration. Our comprehensive R&D and fabricating offices handle both standard generation and specialized customization requirements.
Our heading exceed expectations in wear resistance, high-temperature execution, and accuracy maintenance. Metallurgical applications withstand 500℃ temperatures beneath overwhelming loads, whereas accuracy variations accomplish P4-level precision with clamor control underneath 35dB.
The efficient supply chain and quality control systems ensure consistent product availability and performance reliability. Whether you need immediate delivery of standard products or custom engineering for unique applications, our Slewing Ring Bearing solutions provide the robust performance your equipment demands.
For technical specifications or custom bearing requirements, contact our engineering team at auto@lyautobearing.com. We provide detailed application analysis and recommend optimal bearing solutions for your specific operating conditions.
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