Large Diameter Slewing Bearing

1. Product Description: Large-diameter slewing bearings are large rotary joints designed specifically for heavy equipment, featuring an extra-large diameter and exceptional load-bearing capacity.
2. Product Structures: We offer a variety of large-diameter slewing bearing configurations, including single-row four-point contact ball bearings, double-row different-diameter ball bearings, triple-row roller bearings, and cross-roller bearings.
3. Size Range: Inner diameter range: 2000mm-8000mm, outer diameter range: 250mm-10000mm, height range: 100mm-600mm. We also support custom oversized sizes.
4. Materials: Base material: 42CrMo, 50Mn special alloy steel
Rolling elements: GCr15SiMn high-purity bearing steel
Seal material: Imported nitrile rubber or fluororubber
5. Applications:
Yaw and pitch systems for wind turbines, large excavators, stackers and reclaimers, large experimental turntables, astronomical observation equipment, steelmaking converters, continuous casting equipment, rolling mills, large container gantry cranes, and ship loading and unloading equipment

Product Description

Large Diameter Slewing Bearing – Heavy-Duty Rotary Solutions for Industrial Equipment

Large-diameter slewing bearing technology is crucial when your equipment requires exceptional load-bearing capacity and reliable large-scale rotation. These specialized slewing bearings are designed for heavy machinery with diameters ranging from 2000 mm to 10000 mm. Luoyang Hengguan Bearing Technology Co., Ltd. manufactures high-precision slewing bearings capable of withstanding extreme axial, radial, and moment loads simultaneously. Our products combine robust construction with precise engineering design to ensure the smooth operation of your critical equipment.

Product Details

Our products form the foundation for the operation of your heavy-duty equipment. Each

component consists of precision-machined inner and outer rings, high-quality rolling

elements, and a highly efficient sealing system.

Optional Structure:

· Single-row four-point contact ball bearings

· Double-row different-diameter ball bearings

· Triple-row roller bearings

· Cross-roller bearings

We manufacture these bearing rings using 42CrMo and 50Mn forged steel. The rolling elements are made of GCr15SiMn high-purity bearing steel. The seals are made of imported nitrile rubber or fluororubber to ensure reliable anti-fouling performance.

Why Choose Us?

You need a partner who understands the challenges of manufacturing large rotating hardware. Here are our strengths:

Manufacturing Expertise

Our factory in Luoyang, the heart of China's bearing industry, is equipped with CNC vertical machining centers, CNC milling machines, CNC milling machines, and large gear hobbing machines. This allows us to maintain stringent precision in large-diameter machining.

Precision Machining Capabilities

We offer guides in P0, P6, P5, and P4 precision grades. Our mechanical precision reaches P6 or higher, ensuring smooth control transfer.

Customization Support

In addition to standard products, we offer product mapping, personalized non-standard customization, and design support. If you have special installation requirements or unique stacking conditions, our design team will tailor solutions to your specific needs.

Global Reputation

Our products are used in over 50 countries worldwide, including Germany, the USA, Australia, and throughout the Middle East. We are ISO9001 certified and RoHS compliant.

Technical Specifications

Parameter	Specification
Inner Diameter Range	2000mm – 8000mm
Outer Diameter Range	2500mm – 10000mm
Height Range	100mm – 600mm
Base Material	42CrMo, 50Mn special alloy steel
Rolling Element Material	GCr15SiMn high-purity bearing steel
Seal Material	Nitrile rubber or fluororubber
Raceway Hardness	HRC 55-62
Precision Grades	P0, P6, P5, P4
Gear Accuracy	Grade 6 or higher
Weight Range	500kg – 8000kg

Custom sizes beyond these ranges available upon request

Certification

Large Diameter Slewing Bearing certification

Features and Benefits

High Load Capacity

Optimized raceway geometry increases load capacity by up to 40% compared to conventional designs. This means your equipment can withstand heavier lifting operations without premature bearing failure.

Extended Service Life

Special heat treatment processes and material selection ensure a service life exceeding 20 years under normal conditions. You can reduce replacement frequency and downtime.

Smooth Transmission Control

Integrated gears with 6 levels of precision enable stable torque transmission. Your equipment operates with extremely low vibration and noise.

Environmental Adaptability

Advanced surface treatment processes prevent corrosion in marine environments, extreme temperatures, and polluted conditions. Whether installed on offshore cranes or desert mining equipment, large-diameter slewing bearings ensure continuous and stable operation.

Applications

These bearings power rotation in your most demanding equipment:

· Wind turbine yaw and pitch systems

· Large excavators and mining shovels

· Stackers and reclaimers in bulk material handling

· Astronomical observation telescopes

· Steelmaking converters

· Continuous casting equipment

· Rolling mill stands

· Container gantry cranes

· Ship loading and unloading systems

· Large experimental turntables

Installation Guide

Proper installation ensures optimal bearing performance:

1. Surface Preparation: Clean all mounting surfaces and remove burrs. Check flatness within specified tolerances.

2. Positioning: Align bolt holes carefully. Use temporary fasteners to hold the bearing in position.

3. Bolt Tightening: Follow the specified torque sequence, typically in a star pattern. Apply torque in multiple stages to ensure even load distribution.

4. Clearance Check: Verify axial and radial clearances meet specification before final assembly.

5. Lubrication: Fill grease channels according to the lubrication diagram. Rotate the bearing several times to distribute lubricant evenly.

Our engineering team provides detailed installation drawings and guidance specific to your equipment configuration.

Large Diameter Slewing Bearing installation

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.

Large Diameter Slewing Bearing partners

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

Standard support expands bearing life significantly:

Lubrication Schedule

Re-lubricate each 100-200 working hours depending on stack and speed. Utilize the suggested oil sort to keep up appropriate film thickness.

Inspection Intervals

Check jolt torque month to month amid the to begin with six months, at that point quarterly. Assess seals for harm or wear amid each oil cycle.

Contamination Prevention

Keep mounting regions clean. Supplant harmed seals instantly to anticipate rough molecule ingress.

Vibration Monitoring

Track vibration levels if checking hardware is introduced. Sudden changes demonstrate creating issues requiring investigation.

FAQ

Q: What's the commonplace lead time for custom expansive breadth bearings?

A: Standard arrangements transport inside 4-6 weeks. Custom plans regularly require 8-12 weeks depending on complexity.

Q: Can you fabricate orientation bigger than 10000mm?

A: Yes, we create larger than usual units and can give sectioned plans for distances across surpassing our standard run. Contact Us with your requirements.

Q: Do you give establishment supervision?

A: We offer farther establishment direction as standard. On-site supervision is accessible for basic establishments at extra cost.

Q: What guarantee scope do you provide?

A: We warrant orientation against fabricating surrenders for 12 months from establishment or 18 months from shipment, whichever happens first.

Q: Can existing heading be refurbished?

A: In numerous cases, yes. Send us dimensional data and photographs for assessment.

Contact Us

Ready to discuss your Large Diameter Slewing Bearing requirements? Our engineering team is here to help. Reach us at mia@hgb-bearing.com for technical specifications, quotations, or application assistance.

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.