/ Slewing Bearing

Small 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/42CrMo4/20Mn
Product Description

Small Slewing Bearing - Precision Rotary Solutions for Compact Applications

When your equipment demands exceptional rotational performance within a compact footprint, a Small Slewing Bearing delivers the perfect solution. These specialized rotary components, typically ranging from 200mm to 600mm in outer diameter, are engineered to handle complex combined loads while maintaining precise positioning accuracy. Our product units integrate seamlessly into space-constrained applications where traditional bearing arrangements would be impractical, offering superior load capacity and reliability for critical industrial operations.

Small Slewing Bearing

Key Applications and Performance Benefits

Mechanical Mechanical technology and Automation

The items serve as the establishment for automated arm bases and exactness situating frameworks. These applications require uncommon precision with runout resistances underneath 0.05mm and negligible backfire for repeatable errand execution.

Medical Gear Solutions

CT scanners, X-ray machines, and surgical robots depend on our heading for ultra-smooth, noise-free turn. The plan guarantees zero-backlash situating whereas supporting cantilevered imaging device loads.

Compact Development Equipment

Mini-excavators and compact loaders utilize these heading as the basic chassis-upper interface. They withstand tall stun loads from burrowing operations whereas performing dependably in rough situations containing mud and silica dust.

Solar Following Systems

Distributed photovoltaic following frameworks advantage from our IP65-rated fixed plans that handle wind loads and board tilting minutes. The orientation survive clean, dampness, and UV introduction over 20+ year lifecycles.

Technical Specifications and Structure

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

Advanced Design Features

Triple-Row Roller Configuration

Our Small Slewing Bearing consolidates a specialized three-row roller course of action that optimizes stack dissemination. Two pivotal roller columns handle bidirectional pushed loads and tilting minutes, whereas one spiral roller push oversees spiral powers. This stack specialization maximizes bearing productivity and disposes of stack interference.

Robust Multi-Ring Structure

The bearing highlights three precision-machined rings (inward, external, and middle of the road) that suit each roller push. This coordinates structure disposes of isolated bearing gatherings, lessening complexity and establishment space requirements.

Superior Unbending nature Performance

Line contact between rollers and raceways over all three columns gives uncommon inflexibility, essentially beating ball-type orientation. This plan minimizes avoidance beneath overwhelming loads and keeps up positional exactness amid energetic operations.

Small Slewing Bearing

Quality Assurance and Manufacturing Excellence

With 30 a long time of bearing industry skill, Luoyang Auto Bearing keeps up strict quality control all through generation. Our three-level assessment framework covers crude fabric confirmation, in-process checking, and comprehensive wrapped up item testing. Each bearing experiences confirmation of 12 center execution pointers, accomplishing an ex-factory capability rate surpassing 99.9%.

Heat Treatment and Accuracy Machining

We utilize high-purity bearing steel with specialized warm treatment forms and exactness pounding innovation. Our orientation exceed expectations in wear resistance, high-temperature execution, and exactness maintenance beneath requesting operational conditions.

Application-Specific Solutions

Aerial Work Platforms

Spider cranes and man-lifts require orientation that oversee boom turn whereas dealing with noteworthy tilting minutes. Our plans guarantee smooth, jerk-free turn for administrator security and gear steadiness on uneven terrain.

Precision Instrumentation

Radar radio wires, optical location hardware, and route frameworks request ultra-precise revolution with negligible vibration. Our P4-grade orientation accomplish revolution accuracy with commotion control underneath 35dB.

Harsh Environment Applications

For hardware working in challenging conditions, we offer corrosion-resistant coatings and improved fixing frameworks. These highlights guarantee solid execution in dusty, muggy, or high-vibration situations.

Comprehensive Service and Support

Our engineering team provides complete technical support from bearing selection through installation and maintenance. We offer customized solutions based on your specific equipment parameters and operating conditions, including:

  • On-site mapping services for retrofit applications
  • Installation guidance and training
  • Preventive maintenance planning
  • 24-hour technical consultation support

Fast Delivery and Inventory Management

We maintain stock of over 1,000 bearing types, enabling 48-hour delivery for standard orders. For custom applications, our optimized production processes reduce delivery cycles to 70% of industry averages, with most non-standard bearings completed within 15-20 days.

Small Slewing Bearing

Partner with Industry Experts

Choose Luoyang Auto Bearing for your small slewing bearing requirements and benefit from three decades of engineering excellence. Our commitment to manufacturing high-quality bearings, combined with comprehensive supply chain integration, ensures you receive optimal solutions for your most demanding applications.

For technical specifications, custom engineering support, or to discuss your specific application requirements, contact our engineering team at auto@lyautobearing.com. Let us help you achieve superior rotational performance in your compact equipment designs.

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