Three-Row Roller Slewing Bearing
2. Product Structure: Three independent rows of rollers provide clear division of labor and efficient load-bearing.
3. Size Range: Inner Diameter: 50mm-8000mm, Outer Diameter: 80mm-10000mm, Height: 20mm-500mm, with oversized sizes available for custom customization.
4. Materials: Base Material: 42CrMo, 50Mn Special Alloy Steel
Rolling Elements: GCr15SiMn High-Purity Bearing Steel
Cage: Brass, Steel, or Engineering Plastic
Seal Material: Imported Nitrile Rubber or Fluororubber
5. Applications:
Port Machinery, Mining Equipment, Metallurgical Equipment, Heavy Industry Manufacturing, Special Engineering, Wind Power Installation
- Product Description
Three-Row Roller Slewing Bearing – Heavy-Duty Rotational Solutions
Product Details
When your application demands exceptional load capacity and reliable performance, the Three-Row Roller Slewing Bearing delivers the engineering precision required. This advanced bearing design features three independently arranged rows of cylindrical rollers, which efficiently distribute axial loads, radial loads, and overturning moments across separate roller paths. Its unique configuration transforms point contact into line contact, significantly reducing contact stress while maximizing load-bearing capacity. Unlike conventional slewing bearings, this design assigns specific roles to each roller row: two horizontal rows handle axial forces and tilting moments, while one vertical row manages radial loads. This intelligent load distribution makes it the ideal solution for heavy machinery operating under extreme conditions.
Our bearings are manufactured using 42CrMo and 50Mn alloy steel for structural components, with rolling elements made from GCr15SiMn high-purity bearing steel. Each unit undergoes precision heat treatment and strict quality control to ensure dimensional accuracy and surface finish meet international standards.
Why Choose Us?
Luoyang Heng Guan Bearing Innovation combines three decades of fabricating encounter with present day designing capabilities. Our office in Luoyang—China's bearing industry center—houses progressed CNC vertical machines, equip shapers, and exactness crushing equipment.
We keep up ISO9001 certification and guarantee all items comply with RoHS necessities. Our designing group gives specialized meeting, custom plan administrations, and establishment direction all through your venture lifecycle.
With items sent out to over 50 nations counting Germany, the Joined together States, Australia, and all through the Center East, we get it assorted application necessities. We offer adaptable OEM/ODM organizations and back both standard and non-standard customization based on your 3D drawings or existing item mapping.



Technical Specifications
Parameter | Range/Details |
Inner Diameter | 50mm – 8,000mm |
Outer Diameter | 80mm – 10,000mm |
Height | 20mm – 500mm |
Precision Grade | P0, P6, P5, P4 |
Base Material | 42CrMo, 50Mn Alloy Steel |
Rolling Elements | GCr15SiMn Bearing Steel |
Cage Material | Brass / Steel / Engineering Plastic |
Seal Type | Nitrile Rubber / Fluororubber |
Gear Options | No Gear / External Gear / Internal Gear |
Operating Temperature | -40°C to +80°C (standard seals) |
Certification

Features and Benefits
Predominant Stack Distribution
Three isolated roller lines partition work proficiently. This plan diminishes person roller stretch and expands operational life indeed beneath persistent overwhelming loads.
Enhanced Rigidity
The organized roller course of action gives amazing solidness. Your hardware encounters negligible avoidance amid revolution, keeping up positional accuracy.
Line Contact Advantage
Cylindrical rollers make line contact instep of point contact. This diminishes surface weight and wear rates altogether compared to ball-type slewing bearings.
Low Contact Torque
Optimized roller geometry and accuracy fabricating result in smooth revolution with negligible resistance. This diminishes vitality utilization in your drive systems.
Versatile Mounting
Available in no-Gear, external-gear, and internal-gear setups. You can coordinated the bearing consistently into different mechanical plans utilizing standard shot connections.
Customization Capability
We suit extraordinary measure necessities, non-standard stack conditions, and special mounting courses of action. Our building group works with your determinations to create reasonable solutions.
Applications
Port and Marine Equipment
Ship-to-shore cranes, holder handlers, and seaward stage rotators depend on these orientation for 24/7 operation in destructive situations.
Mining Machinery
Excavators, draglines, and bucket-wheel systems require the high radial capacity that Three-Row Roller Slewing Bearing designs provide.
Metallurgical Equipment
Ladle turrets, nonstop casting machines, and fabric dealing with frameworks advantage from the bearing's capacity to oversee combined loads.
Wind Vitality Systems
Turbine yaw and pitch instruments request accuracy revolution beneath changing wind loads and climate conditions.
Construction Equipment
Mobile cranes, concrete pumps, and boring rigs utilize these orientation for solid slewing capacities in requesting jobsite conditions.
Special Building Projects
Radar stages, toady following frameworks, and mechanical robots require the accuracy and steadiness these heading deliver.
Installation Guide
Pre-Installation Inspection
Verify mounting surface levelness utilizing accuracy measuring instruments. Clean all surfaces completely to expel flotsam and jetsam and defensive coatings.
Mounting Surface Preparation
Ensure jolt gaps adjust precisely with bearing mounting gaps. Check that surface hardness meets determination prerequisites for legitimate stack transfer.
Bearing Positioning
Carefully position the bearing utilizing lifting gear evaluated for the bearing weight. Adjust equip teeth (in case prepared) some time recently last placement.
Bolt Fixing Procedure
Apply jolts in a star design arrangement. Fix dynamically to indicated torque values utilizing calibrated devices. Recheck torque after introductory operation period.
Lubrication Application
Fill oil channels with suggested grease review. Pivot the bearing a few insurgencies to disseminate oil equitably over roller paths.
Clearance Verification
Measure pivotal and outspread clearance after establishment. Values ought to drop inside indicated ranges for appropriate stack distribution.




Exhibition
We attend many famous international exhibitions such as Shanghai International Maritime Exhibition,Mining World Russia, bauma China, CTT Russia, etc



Partners
Your trust, we cherish in heart all times and will reciprocate that trust with unwavering quality.

Packaging & shipping
Your goods are unique, and their journey should be flawless. Therefore, we offer professional and customized packaging services. Our experienced team will evaluate your goods' characteristics, transportation route, and environmental requirements to recommend the most secure solution, such as: wooden crate packaging, sturdy frame packaging, or composite reinforced packaging (wooden crate + iron frame).



Maintenance and Care
Regular Lubrication
Replenish oil at interims based on working hours and natural conditions. Normal interims extend from 100 to 500 working hours.
Seal Inspection
Check seals frequently for harm or wear. Supplant compromised seals instantly to avoid contaminant ingress.
Bolt Torque Verification
Recheck mounting jolt torque intermittently, particularly amid the to begin with month of operation when beginning settling occurs.
Operational Monitoring
Listen for abnormal clamor amid turn. Irregular sounds may show insufficient grease or contaminant entry.
Cleaning Procedures
Remove collected soil from outside surfaces. Maintain a strategic distance from high-pressure washing straightforwardly onto seal areas.
Positive customer reviews
Our quality and service have received widespread praise from our customers.


FAQ
Q: What makes three-row roller orientation diverse from double-row designs?
A: The third roller push gives committed outspread stack bolster, altogether expanding in general capacity whereas keeping up compact dimensions.
Q: Can you give orientation bigger than 8,000mm internal diameter?
A: Yes, we fabricate custom sizes up to 10,000mm external distance across for extraordinary applications.
Q: What accuracy review ought to I specify?
A: P0 suits common mechanical utilize. P6 serves exactness apparatus. P5 and P4 grades fit applications requiring negligible runout.
Q: How do I decide required grease intervals?
A: Interims depend on rotational speed, stack, temperature, and environment. We give particular suggestions based on your working conditions.
Q: Do you offer specialized back for bearing selection?
A: Our designing group helps with stack calculations, estimate determination, and setup proposals all through your project.
Q: What is commonplace lead time for custom bearings?
A: Standard adjustments require 4-6 weeks. Complex custom plans may require 8-12 weeks depending on measure and determinations.
Contact Us
Ready to discuss your Three-Row Roller Slewing Bearing requirements? Our technical team is available to answer your questions and provide application-specific recommendations. Email us at mia@hgb-bearing.com today.
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