/ Slewing Bearing

Three-Row Cylindrical Roller Slewing Bearing

1. Type: External gear, Internal gear, No gear
2. Feature: The Triple-row Roller Slewing Bearing has three seating rings, which separate the upper, lower and radial raceways. It can specify the loads of each row of rollers. Moreover, its load carrying capacity and it can bear different loads simultaneously. The solid structure and the large axial and radial dimensions.
3. Application: It is applicable to the heavy equipment with large diameter such as bucket-wheel excavator, wheeled crane, ship crane, harbor crane, ladle turrets and heavy-duty mobile crane, etc.
4. Material:50Mn/42CrMo/S48C/42CrMo4/38Mn
Product Description

Three-Row Cylindrical Roller Slewing Bearing

Premium Heavy-Duty Bearing Solutions for Industrial Applications

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.

Three-Row Cylindrical Roller Slewing Bearing

Technical Design and Working Principle

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.

Key Performance Advantages

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.

Technical Specifications

Bearing Type
Model Number
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
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
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
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
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

Configuration Options

Gear Integration

  • External Gear: Provides direct torque transmission for rotational control
  • Internal Gear: Space-saving design for compact installations
  • Gearless: Maximum flexibility for custom drive arrangements

Sealing and Protection

  • Sealed Type: Pre-lubricated with high-temperature grease, dust and water resistant
  • Open Type: Suitable for clean, controlled environments with custom lubrication systems

Material and Coating Options

  • Standard: High-strength chromium steel with carburizing and quenching treatment
  • Corrosion Resistant: Stainless steel options with specialized coatings for marine applications
  • Special Environments: Zinc or nickel plating for enhanced corrosion protection

Primary Applications

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.

Three-Row Cylindrical Roller Slewing Bearing

Manufacturing Excellence

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%.

Quality Assurance

  • Three-level quality control system
  • Vibration and life testing verification
  • Material traceability and certification
  • ISO/DIN standard compliance

Three-Row Cylindrical Roller Slewing Bearing

Professional Support Services

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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