Roller Slewing Ring
2. Product Configurations: Single-row roller, double-row roller, triple-row roller.
3. Size Range: Inner Diameter: 200mm-8000mm, Outer Diameter: 50mm-10000mm, Height: 80mm-400mm
4. Materials: Rings: Made of 50Mn, 42CrMo, or equivalent high-strength alloy steel forgings.
Rolling Elements: Precision rollers or steel balls made of high-purity GCr15 bearing steel. Seals: Oil-resistant, wear-resistant, and age-resistant NBR nitrile rubber.
5. Applications:
Thousand-ton cranes, large excavators, shield tunneling equipment, stackers and reclaimers, large ship loaders and unloaders, heavy-load rotary platforms, solar tracking systems, and container quay cranes.
- Product Description
Roller Slewing Ring | Heavy-Duty Rotational Bearing Solutions
Product Details
When your application requires reliable rotation under extreme loads, Roller Slewing Ring provide the performance you need. Unlike standard ball Slewing Bearings, this design utilizes precision cylindrical or tapered rollers as rolling elements, enabling it to withstand higher radial and axial forces. This product is specifically designed for heavy-duty industrial environments where traditional bearings simply cannot handle the combined loads and moments. Our roller slewing solutions can be applied to a wide range of equipment, from mining machinery to large material handling systems.
At Luoyang Hengguan Bearing Technology Co., Ltd., we manufacture roller slewing bearings with diameters ranging from 50 mm to 10,000 mm to meet a wide range of industrial needs. Whether you operate a thousand-ton crane or a solar tracking array, our products provide the rotational stability and load capacity your machinery requires.
Construction and Working Principle
The core structure consists of inner and outer ring raceways machined from Forged 50Mn or 42CrMo alloy steel. High-purity GCr15 bearing steel rollers are precisely positioned between these raceways. This configuration distributes loads across multiple contact points, reducing stress concentration and extending service life.
We offer three main configurations:
· Single-row roller: Optimal for applications with predominantly axial or radial loads
· Double-row roller: Balanced performance for combined load conditions
· Triple-row roller: Maximum capacity for extreme multi-directional loading
Each bearing includes integrated sealing systems using NBR nitrile rubber, which resists oil, wear, and aging. Mounting holes are pre-drilled according to your specifications, and lubrication channels are incorporated for maintenance access.
Why Choose Us?
ISO 9001 Certified Manufacturing
Our quality management system ensures consistent production standards across all bearing sizes. Every Roller Slewing Ring undergoes coordinate measurement, vibration testing, and functional verification before shipment.
Three Decades of Building Experience
Located in Luoyang, the heart of China's bearing manufacturing industry, we have a team of 50 professionals with extensive expertise in the design and application of slewing bearings. We understand the challenges you face in heavy-duty rotating systems.
Precision Review Flexibility
We fabricate orientation to P0, P6, P5, and P4 exactness grades, permitting you to coordinate bearing exactness to your particular execution necessities and budget constraints.
Custom Designing Capability
Beyond standard catalog items, we handle non-standard plans counting ancient item invert designing, altered mounting designs, and uncommon raceway geometries. Our CNC vertical machines, equip shapers, and machining centers back complex custom projects.
Global Supply Track Record
Our orientation work in over 50 nations over six landmasses. This universal encounter implies we get it assorted industry guidelines and application conditions.



Technical Specifications
Parameter | Specification |
Inner Diameter Range | 200mm – 8,000mm |
Outer Diameter Range | 50mm – 10,000mm |
Height Range | 80mm – 400mm |
Ring Material | 50Mn, 42CrMo forged alloy steel |
Rolling Elements | GCr15 precision rollers |
Seal Material | NBR nitrile rubber |
Raceway Configuration | Single-row, double-row, triple-row |
Precision Grades | P0, P6, P5, P4 (ISO 492) |
Gear Options | External, internal, or no gear |
Protection Rating | IP65 (with proper installation) |
Operating Temperature | -30°C to +80°C |
Lubrication | Grease with integrated channels |
Certification

Features and Benefits
Tall Stack Capacity
Roller contact geometry gives 40% more noteworthy stack capacity compared to comparable ball-type plans. This implies you can work heavier hardware or expand security edges in existing applications.
Extended Benefit Life
Precision pounding of raceways combined with controlled warm treatment conveys operational life surpassing 100,000 hours beneath appraised conditions. This decreases substitution recurrence and brings down add up to taken a toll of ownership.
Multi-Directional Stack Support
Simultaneous pivotal, spiral, and minute loads are suited inside a single compact get together. This disentangles your plan and decreases the number of components in your rotational system.
Effective Defilement Protection
Multi-layer fixing frameworks avoid entrance of clean, dampness, and particulates. This is especially important in open air applications and cruel mechanical environments.
Simplified Upkeep Access
Integrated oil ports empower regreasing without dismantling. You can perform schedule support amid planned downtime or maybe than crisis shutdowns.
Applications
Our roller slewing bearings serve demanding rotational applications across multiple industries:
· Construction Equipment: Excavators, mobile cranes, concrete pumps, drilling rigs
· Material Handling: Port cranes, stackers, reclaimers, ship loaders
· Mining Machinery: Bucket wheel excavators, draglines, rotary drilling equipment
· Renewable Energy: Solar tracking systems, wind turbine yaw and pitch mechanisms
· Marine Systems: Deck cranes, davits, radar and antenna pedestals
· Special Vehicles: Mobile platforms, military turrets, firefighting apparatus
Each application benefits from the robust construction and high moment capacity that roller configurations provide.
Installation Guide
Pre-Installation Inspection
Verify that mounting surfaces are flat, clean, and free from burrs. Check that bolt holes align properly with the bearing mounting pattern. Confirm that the mating structure has adequate stiffness to prevent deformation under load.
Mounting Procedure
1. Position the bearing on the lower mounting surface
2. Apply high-strength bolts per the torque specification sheet
3. Tighten bolts in a star pattern to ensure even clamping force
4. Install the upper structure and repeat the bolting sequence
5. Verify that rotation is smooth with no binding or excessive play
Introductory Lubrication
Fill all oil channels with the indicated grease some time recently operation. Turn the bearing through a few total cycles to disperse oil equally over the raceways.




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
Lubrication Schedule
Regrease each 100-200 working hours depending on stack and natural conditions. Utilize lithium-based bearing oil with NLGI Review 2 consistency.
Periodic Inspection
Check jolt torque each 500 hours at first, at that point each 1,000 hours after run-in period. Assess seals for harm or wear. Screen for bizarre clamor or vibration amid operation.
Storage Recommendations
If putting away orientation some time recently establishment, keep them in a dry, temperature-controlled environment. Keep up manufacturing plant conservation oil and defensive wrapping until prepared for use.
FAQ
Q: What is the distinction between roller and ball slewing bearings?
A: Roller plans utilize round and hollow or decreased rollers instep of balls. This gives higher stack capacity but ordinarily requires more exact establishment alignment.
Q: Can you supply orientation with coordinates equip teeth?
A: Yes, we machine outside or inside Gears straightforwardly onto the rings concurring to your module and tooth check requirements.
Q: What lead time ought to I anticipate for custom sizes?
A: Standard setups dispatch inside 3-4 weeks. Custom non-standard plans ordinarily require 6-8 weeks depending on complexity.
Q: How do I decide the rectify bearing measure for my application?
A: Give us with your stack information (hub, outspread, and tilting minute), turn speed, and establishment space. Our engineers will prescribe the suitable configuration.
Q: Do you give establishment support?
A: We supply nitty gritty establishment drawings and strategies. For basic applications, we can organize on-site specialized direction.
Contact Us
Ready to discuss your Roller Slewing Ring requirements? Our engineering team is here to help you select the right solution for your application.
Email: mia@hgb-bearing.com
Luoyang Hengguan Bearing Technology Co., Ltd. – Precision engineered slewing bearings for demanding industrial applications.












