When your equipment demands exceptional load capacity and precision under extreme conditions, our Three-Row Cylindrical Roller Slewing Bearing delivers unmatched performance. These advanced bearings feature a specialized three-ring structure that simultaneously handles massive axial loads, radial forces, and tilting moments. Our engineering team has optimized this design to provide maximum rigidity and reliability for heavy machinery applications. The innovative roller configuration ensures optimal load distribution across dedicated roller rows, making our product the preferred choice for critical industrial equipment.

Progressed Multi-Row Configuration
Our bearing plan joins three unmistakable roller columns, each built for particular stack handling:
Two Flat Hub Lines: These columns oversee bidirectional pivotal pushed loads and toppling minutes. The rollers keep up parallel arrangement to the bearing's hub heading, guaranteeing ideal drive distribution.
One Vertical Outspread Push: Situated opposite to the pivotal columns, this setup assimilates outspread loads and gives centering soundness amid rotation.
Precision Designing Structure
The bearing comprises of three primary rings - internal ring, external ring, and middle ring. Each ring highlights precision-machined raceways particularly outlined for its comparing roller push. This coordinates approach kills the complexity of different bearing congregations whereas keeping up uncommon basic integrity.
Line Contact Innovation: Not at all like point contact plans, our round and hollow rollers make full line contact with raceways. This arrangement altogether diminishes contact push and upgrades stack dispersion over the bearing surface.
Superior Stack Capacity
Your overwhelming gear works beneath requesting conditions that require remarkable bearing execution. Our product excels in these situations by dispersing loads over specialized roller sets. This plan approach permits the bearing to handle outspread loads surpassing a few hundred tons whereas at the same time overseeing considerable tilting moments.
Enhanced Inflexibility and Precision
The three-row line contact plan minimizes avoidance beneath overwhelming loads. You can anticipate tight runout resiliences of ≤0.02mm and negligible backfire, guaranteeing exact rotational situating indeed amid energetic operations. Our exactness grades (P5/P4) meet the most requesting exactness requirements.
Extended Benefit Life
Load specialization over committed roller lines diminishes wear concentrations and push focuses. Combined with high-quality bearing steel materials and accuracy fabricating, this plan essentially expands operational life whereas decreasing support prerequisites.
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Bearing Type
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Model Number
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Internal Diameter (d) mm
|
External Diameter (D) mm
|
Width (B) mm
|
Static Load Capacity (C₀) kN
|
Dynamic Load Capacity (C) kN
|
Rolling Element Type
|
Material
|
Sealing Structure
|
Lubrication Method
|
Application Scenarios
|
Weight kg
|
|
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
|
High-temperature Lithium-based Grease
|
Large precision rotary platforms
|
145
|
|
Double-row Ball Slewing Ring
|
022.30.630
|
630
|
850
|
70
|
2500
|
1100
|
Double-row Steel Ball
|
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
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Combined Seal (Rubber + Metal)
|
Grease + Periodic Oil Injection
|
Large cranes, wind turbine yaw systems
|
245
|
|
|
022.30.1000
|
1000
|
1320
|
95
|
4500
|
2000
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Double-row Steel Ball
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50Mn
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Combined Seal (Rubber + Metal)
|
Grease + Periodic Oil Injection
|
Wind turbine pitch systems, mining machinery
|
380
|
|
Three-row Roller Slewing Ring
|
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
|
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
|
1280
|
|
Ball-Roller Combined Slewing Ring
|
031.35.630
|
630
|
880
|
85
|
3000
|
1300
|
Ball + Roller
|
42CrMo
|
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
|
Large-scale stacking machines, heavy-duty transfer equipment
|
320
|
Heavy Construction Equipment
Excavators, wheel loaders, and mobile cranes benefit from the bearing's ability to handle combined loads during operation. The robust design withstands shock loads and dynamic forces common in construction environments.
Industrial Machinery
Steel mill equipment, port cranes, and material handling systems require the exceptional load capacity our Three-Row Cylindrical Roller Slewing Bearing provides. These applications demand reliable performance under continuous heavy-duty operation.
Renewable Energy
Wind turbine pitch systems and solar tracking mechanisms utilize our bearings for precise positioning under varying environmental conditions. The sealed design protects against weather exposure while maintaining operational accuracy.

Our 30 a long time of bearing industry encounter empowers us to convey reliably high-quality items. We keep up comprehensive quality control all through the fabricating prepare, from crude fabric review to wrapped up item confirmation. Each bearing experiences testing of 12 basic execution markers, guaranteeing an ex-factory capability rate surpassing 99.9%.

We provide comprehensive technical support for your bearing applications. Our experienced engineering team offers installation guidance, performance optimization, and maintenance planning. Whether you need standard products or custom solutions, we ensure proper bearing selection and application success.
For detailed technical specifications or custom Three-Row Cylindrical Roller Slewing Bearing solutions, contact our engineering team at auto@lyautobearing.com. We're committed to providing the precise bearing solution your equipment requires.
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