Heavy-Duty Slewing Bearing

1. Product Description: Heavy-duty slewing bearings are core components specifically designed and manufactured for heavy machinery and equipment, primarily used to withstand the axial loads, radial loads, and overturning moments of large equipment.
2. Product Structures: We offer a variety of heavy-duty slewing bearing configurations: single-row four-point contact ball bearings, double-row different-diameter ball bearings, three-row roller bearings, and cross-roller bearings.
3. Size Range: Inner diameter range: 1000mm-9500mm, outer diameter range: 1200mm-10000mm, height range: 100mm-500mm. We also support custom designs for oversized sizes.
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:
Engineering Machinery, Mining and Metallurgy, Electric Power, Environmental Protection Equipment, Petrochemicals, Transportation, Food and Pharmaceuticals

Product Description

Heavy-Duty Slewing Bearing - Superior Performance for Demanding Applications

When your equipment operates under extreme loads and demanding conditions, you need components you can truly rely on. The heavy-duty slewing bearing solutions from Luoyang Heng Guan Bearing Technology are engineered specifically for heavy machinery that demands exceptional load capacity and long-term reliability. These robust rotating assemblies are designed to handle massive axial forces, radial loads, and tilting moments simultaneously—even in applications where conventional bearings fall short.

Our product range covers diameters from 1,000 mm to 10,000 mm, providing the structural backbone for critical operations in mining, construction, and industrial equipment worldwide.

To match your specific application needs, our slewing bearings can be configured with a variety of auxiliary setups. Available options include:

Single-row four-point contact ball bearings for combined load conditions.

Double-row ball bearings with different ball diameters for enhanced load capacity.

Three-row roller bearings for the most extreme load handling.

Cross roller bearings for compact installations requiring high rigidity and precision.

Each bearing unit integrates the inner ring, outer ring, precision-engineered rolling elements, and advanced sealing systems into a single, ready-to-install assembly. This integrated design simplifies installation while ensuring reliable, consistent performance throughout the entire service life of your equipment.

Why Choose Us?

Luoyang Heng Guan Bearing Technology Co., Ltd. has over 20 years of experience in designing and manufacturing slewing bearings. Located in Luoyang — the center of China’s bearing industry — our facility is equipped with advanced CNC vertical machining centers, cutting machines, forming machines, and crushing equipment, all dedicated to the production of high‑precision bearings.

Our team of more than 50 engineers focuses on the research, development, and manufacturing of bearings. With strong technical expertise, we are able to handle complex technical challenges and provide solutions that meet your specific requirements.

All our production processes are ISO 9001 certified and comply with RoHS standards. Every bearing undergoes strict testing before shipment, including tests using coordinate measuring machines, vibration analyzers, and life‑cycle testing equipment.

Our bearings range in size from 50 mm to 10,000 mm, with precision grades covering P0, P6, P5, and P4. We also produce supporting components such as large gears, shafts, ring gears, and couplings.

Currently, our partners are located in over 50 countries worldwide, including the United States, Germany, South Africa, Australia, and the entire Middle East. This global reach reflects our reliable quality and efficient delivery capabilities.

Technical Specifications

Parameter	Specification
Inner Diameter Range	1000mm - 9500mm (custom sizes available)
Outer Diameter Range	1200mm - 10000mm
Height Range	100mm - 500mm
Base Material	42CrMo, 50Mn special alloy steel
Rolling Elements	GCr15SiMn high-purity bearing steel
Cage Material	Brass, steel, or engineering plastic
Seal Type	Nitrile rubber or fluororubber
Precision Grades	P0, P6, P5, P4
Configuration Options	Single-row ball, double-row ball, three-row roller, cross-roller
Standards Compliance	ISO, DIN, GB international standards
Environmental Protection	RoHS compliant

Features and Benefits

Superior Load Capacity

Multi-row raceway design distributes forces over a larger contact area. This means your equipment can withstand complex loads exceeding thousands of tons without premature wear or failure.

Excellent Rigidity

High-quality alloy steel construction minimizes deformation under load. It maintains stable rotational accuracy even under peak operating stress, preventing jamming and reducing downtime.

Longer Service Life

Deep carburizing and precision heat treatment create hardened raceways with superior fatigue resistance. This means your equipment can operate reliably for decades in your application.

Smooth Rotation Under Load

Optimized raceway geometry and precision manufacturing processes ensure a low coefficient of friction. Your equipment requires less energy to operate while maintaining precise positioning capabilities.

Environmental Protection

Multiple sealing barriers prevent contaminant ingress while retaining lubricant. Our heavy-duty slewing bearing units operate reliably in dusty, humid, corrosive, and extreme temperature environments.

Customization Flexibility

We can design bearings to fit your specific installation dimensions, bolt hole positions, gear specifications, and load requirements. You will get a solution that can be seamlessly integrated with your device design.

Applications

Construction Machinery

Excavators, crawler cranes, and mobile cranes rely on these guides to achieve 360-degree rotation under various loads. The guides support the slewing platform and withstand ground reaction forces during lifting operations.

Mining and Metallurgy

Bucket wheel excavators, stacker-reclaimers, and stackers operate continuously under harsh conditions. Our guides provide the reliability required for 24/7 operation in harsh environments.

Power Industry

Wind turbine yaw and pitch systems rely on precise, low-friction steering. Guides enable turbines to follow wind direction while withstanding edge loads in various climatic conditions.

Environmental Equipment

Wastewater treatment clarifiers and sludge thickeners require corrosion-resistant guides to achieve slow, continuous rotation. Special sealing solutions prevent contamination in humid environments.

Petrochemicals

Offshore drilling platforms and refinery equipment require guides capable of withstanding salt spray, extreme temperatures, and significant impact loads during operation.

Transportation

Port cranes, loader and rail-mounted gantry cranes utilize these orientations to reliably handle cargo in marine environments.

Installation Guide

Pre-installation Inspection

Confirm the mounting surface is clean, flat, and free of burrs. Check the bearing clearance arrangement and dimensional accuracy.

Mounting Surface Preparation

Ensure the mounting surface meets the flatness requirements specified in the hardware drawings. Remove any protective coating from the bearing housing area.

Bearing Positioning

Carefully place the bearing assembly onto the lower mounting bracket. If provided, adjust the bearing clearance using locating pins.

Bolt Tightening Sequence

First, tighten all mounting bolts with your fingers. Then, dynamically tighten them in a star order to the specified torque value. This prevents damage to the bearing rings during installation.

Final Inspection

Manually rotate the bearing to confirm smooth operation without the use of any tools. Adjust the hub and rim clearance to confirm correct installation.Maintenance and Care

Lubrication Schedule

Relubricate through oil fittings each 100-200 working hours, or as indicated for your application conditions. Utilize as it were suggested bearing oils congruous with existing lubricant.

Seal Inspection

Check seals quarterly for harm, wear, or solidifying. Supplant harmed seals quickly to avoid defilement and oil loss.

Bolt Torque Verification

Re-check mounting jolt torque after the to begin with 50 hours of operation, at that point yearly. Free jolts can cause worrying harm and untimely failure.

Operational Monitoring

Listen for unordinary clamor amid operation. Anomalous sounds may demonstrate oil issues, defilement, or component wear requiring investigation.

Temperature Monitoring

Measure bearing temperature amid operation. Maintained temperature increments propose lacking oil or inner harm.

Maintenance and Care

Lubrication Schedule

Relubricate through grease fittings every 100-200 operating hours, or as specified for your application conditions. Use only recommended bearing greases compatible with existing lubricant.

Seal Inspection

Check seals quarterly for damage, wear, or hardening. Replace damaged seals immediately to prevent contamination and lubricant loss.

Bolt Torque Verification

Re-check mounting bolt torque after the first 50 hours of operation, then annually. Loose bolts can cause fretting damage and premature failure.

Operational Monitoring

Listen for unusual noise during operation. Abnormal sounds may indicate lubrication issues, contamination, or component wear requiring investigation.

Temperature Monitoring

Measure bearing temperature during operation. Sustained temperature increases suggest inadequate lubrication or internal damage.

Exhibition

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

Partners

Your trust is cherished at the core of all we do, and we will honor it with unwavering quality and commitment.

External Gear Ring partners

Packaging & shipping

Your products are unique, and their journey deserves to be flawless. That's why we provide professional and customized packaging solutions. Our experienced team evaluates each product's characteristics, shipping route, and environmental requirements to design the most secure packaging approach—including options such as wooden crates, reinforced frame structures, and composite solutions (wooden crate with iron frame reinforcement).

FAQ

Q: What is the typical lead time for custom products?

A: Standard sizes ship within 4-6 weeks. Custom designs require 8-12 weeks depending on complexity and current production schedule.

Q: Can you manufacture bearings with integrated Gear teeth?

A: Yes, we produce bearings with internal or external gears according to your module and tooth count specifications.

Q: What documentation do you provide with each bearing?

A: Every bearing ships with dimensional inspection reports, material certificates, and installation instructions.

Q: Do you offer technical support for bearing selection?

A: Our engineering team provides free technical consultation to help you select the optimal bearing configuration for your application.

Q: Can you reverse-engineer bearings from existing equipment?

A: We offer measurement and replication services for obsolete or discontinued bearing models when 3D drawings are not available.

Q: What is the maximum diameter you can manufacture?

A: Our current production capacity extends to 10000mm outer diameter, with larger sizes available through partnerships.

Contact Us

Need expert guidance on Heavy-Duty Slewing Bearing selection for your application? Our engineering team is ready to help. Email us at mia@hgb-bearing.com with your technical requirements.

WHAT OUR CUSTOMERS SAY

Here is the customer's evaluation of us

From Europe

As a leading construction machinery manufacturer in Europe, we are very impressed with the quality and performance of your slewing rings. The precision machining and consistent quality meet our strict standards. A reliable global supplier!

From United States

Our CT scanners require extremely smooth rotation, low noise, and no magnetic interference. Your product perfectly meets these requirements, operating virtually silently without compromising image quality. Your technical expertise is truly impressive!

From Southeast Asia

We have been the distributor of your brand for many years and have received excellent customer feedback. Your diverse product line meets diverse customer needs, and our consistent quality makes us very competitive in the market. Your technical support and service team are also fantastic!

From United States

The slewing bearing selected for our wind turbine main drive system has exceeded our expectations in terms of precision and reliability. It operates smoothly even in extreme wind conditions and has a long maintenance cycle, significantly reducing our lifecycle costs. We are a trustworthy partner!

From the Middle East

Our equipment required a slewing bearing with non-standard dimensions and special gears. We contacted several companies but they all said they couldn't make it. Not only did you accept the order, but we also communicated smoothly throughout the entire process from proofing to mass production, and the finished product fully met our design requirements. This customization capability demonstrates your true technical strength.

From Europe

We have integrated your slewing rings into our new line of crawler cranes. The performance under full load and in extreme weather conditions has been flawless. The precision and durability meet the highest European standards. A truly reliable component for critical applications.

From North America

The harsh, sandy environment of our port is a true test for any equipment. Your slewing bearings' superior sealing system has effectively kept out abrasive contaminants. Our ship-to-shore cranes have seen a dramatic increase in uptime and service life since switching to your brand.

From the Middle East

In the mining industry, equipment failure is not an option. The immense strength and robust construction of your large-diameter slewing bearings have withstood the incredible shocks and loads in our mining excavators. Their reliability is directly contributing to our productivity.