When your equipment demands exceptional precision and reliability under extreme loads, our Crossed Roller Slewing Bearing delivers unmatched performance. This advanced bearing technology combines the load-carrying capacity of traditional slewing rings with the precision positioning of crossed roller design. Our bearings support combined axial, radial, and moment loads while maintaining tight rotational accuracy. Engineered for applications where conventional bearings fail, these units provide superior rigidity and extended service life in demanding industrial environments.


A item speaks to a specialized rotational bearing plan that coordinating round and hollow rollers organized in a exact 90-degree crossed design. This setup empowers the bearing to handle significant combined loads whereas keeping up uncommon rotational accuracy.
The bearing structure highlights round and hollow rollers situated then again at right points to each other inside a single raceway. This course of action guarantees that pivotal powers from both headings, outspread loads, and tilting minutes are dispersed equally over the rolling components. The result is predominant stack dispersion compared to customary ball-type slewing orientation.
The bearing consists of three primary elements:
The crossed arrangement allows each roller to contact the raceway along its full length, creating optimal load distribution. When loads are applied, alternating rollers handle different load directions, eliminating the need for separate thrust and radial bearing assemblies.
This design principle ensures that your equipment benefits from reduced deflection under load and improved rotational accuracy compared to traditional bearing configurations.
|
Bearing Type
|
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
|
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
|
Predominant Stack Distribution
The crossed roller setup gives line contact between rollers and raceways. This plan disperses loads more successfully than point contact found in ball heading, coming about in higher stack capacity and decreased stretch concentrations.
Enhanced Rigidity
Multiple contact focuses over the crossed roller course of action make uncommon bearing inflexibility. Your gear encounters negligible diversion beneath shifting loads, keeping up exact situating indeed amid energetic operations.
Compact Plan Benefits
A single Crossed Roller Slewing Bearing replaces numerous customary bearing congregations. This integration decreases establishment complexity, spares space, and brings down in general hardware weight whereas making strides reliability.
Precision Performance
Tight fabricating resistances guarantee reliable rotational exactness. The bearing keeps up exact situating beneath stack, making it perfect for applications requiring correct precise situating.

Our fabricating handle joins progressed warm treatment procedures and accuracy pounding innovation. Each bearing experiences comprehensive testing counting vibration examination, stack testing, and dimensional verification.
We keep up a three-tier quality control framework covering crude fabric assessment, in-process checking, and total wrapped up item approval. This approach guarantees steady quality with over 99.9% first-pass acknowledgment rates.
Mounting Considerations
Proper establishment requires consideration to mounting surface levelness and jolt torque details. The bearing mounting surfaces ought to be machined to accomplish ideal stack dissemination over the bearing interface.
Lubrication Requirements
Regular oil upkeep amplifies bearing life essentially. We prescribe high-quality lithium-based oil for standard applications, with re-lubrication interims based on working conditions and stack factors.
Operational Monitoring
Monitor bearing execution through vibration investigation and temperature estimation. Early location of operational changes makes a difference anticipate hardware downtime and amplifies bearing benefit life.
We give comprehensive customization administrations to coordinate your particular application necessities. Our designing group analyzes your working conditions to prescribe ideal bearing configurations.
Customization choices incorporate extraordinary materials for destructive situations, altered fixing courses of action, and application-specific adapt proportions. Non-standard sizes are accessible with conveyance times diminished to 70% of industry midpoints through our optimized generation processes.
Our experienced building group gives comprehensive specialized bolster all through the bearing lifecycle. Administrations incorporate application examination, establishment direction, and operational troubleshooting.
For complex establishments or specialized applications, we offer on-site specialized help and custom mounting arrangements. Our worldwide back arrange guarantees responsive benefit notwithstanding of your location.
With 30 a long time of bearing fabricating involvement, we get it the basic execution necessities of mechanical applications. Our coordinates approach combines accuracy fabricating with comprehensive back services.
We keep up broad stock of standard setups for fast conveyance, whereas our adaptable fabricating capabilities bolster custom necessities proficiently. Quality administration frameworks guarantee reliable execution over all item lines.
Our Crossed Roller Slewing Bearing technology represents the optimal solution for applications demanding high precision, heavy load capacity, and reliable operation. Contact our technical team at auto@lyautobearing.com to discuss your specific application requirements and discover how our bearing solutions can enhance your equipment performance.
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