The HSE Series Slew Drive is a heavy-duty, high-speed rotary actuator that combines a slewing bearing, high-strength worm gear, and compact housing into a precision-engineered system. Built for high torque output, faster rotational speeds, and enhanced load handling, the HSE (High-Speed Enclosed) series is ideal for industries where powerful and efficient rotary movement is critical—such as in construction, automation, and high-capacity solar tracking systems.
Unlike standard slew drives, the HSE series emphasizes dynamic motion without compromising torque stability or environmental durability.
Key Features and Performance Benefits
High-Speed Worm Drive Architecture Optimized gear ratios and low backlash worm systems enable faster rotation cycles without overheating or gear fatigue.
Increased Torque and Load Output Built for axial and radial load conditions, HSE drives can handle higher moment loads compared to traditional models.
Reinforced Housing and Sealing Encased in corrosion-resistant aluminum or steel housing with IP66 protection, it’s ready for rugged terrain or outdoor exposure.
Motor Flexibility Compatible with servo motors, hydraulic motors, and stepper drives, the HSE platform is ideal for integration with advanced control systems.
Precision and Reliability High-grade slewing rings with hardened raceways ensure long service life and minimal maintenance in 24/7 operation.
Application Scenarios
Automated Construction Equipment: High-speed positioning for cranes, boom lifts, and cement sprayers.
High-Load Solar Trackers: Where panel arrays are large and require faster adjustment cycles.
Logistics and Conveyor Turntables: Industrial sorting systems with high throughput.
Mining and Tunneling Equipment: Harsh environmental conditions requiring dustproof and shock-resistant rotation.
Military Radar and Targeting Systems: Fast-response rotation under high payload demands.
LDB’s HSE Series Slew Drive Product Line
LDB provides HSE Series drives from 6” to 25” sizes with customizable torque, gear, and speed characteristics. Units undergo precision grinding, hardening, and dynamic testing before shipping.
Specifications Overview:
Torque Capacity: Up to 70,000 Nm
Speed Range: Up to 10 rpm
Gear Ratios: 20:1 to 120:1
Mounting Types: Flange or dual-output shaft
Seal Level: IP66 standard; optional IP67 marine rating
LDB also offers encoder-ready configurations and automatic lubrication systems for high-duty environments.
Pricing, Supplier, and Manufacturer Considerations
LDB is an experienced global manufacturer and trusted supplier of advanced rotary solutions. The HSE series is developed with a focus on speed, durability, and engineering precision.
Price Influencers:
Motor compatibility and power level
Torque and load specifications
Custom sealing and housing materials
Application-specific mounting or feedback integration
Typical Price Range: USD $900 to $5,800 based on configuration.
Quotes and technical drawings are available through www.ldb-bearing.com. LDB also supports international delivery, assembly advice, and real-time engineering support.
Why Choose LDB for HSE Drives?
Over 20 years of slewing system experience
High-speed gear design for low-noise operation
Application-matched material selection
Strong export presence in construction, defense, and industrial automation
LDB’s HSE Series Slew Drives have been deployed in rapid-response radar systems, offshore drilling arms, and tunnel boring machines across the globe.
Conclusion
The HSE Series delivers where speed meets strength. With LDB’s engineering expertise and global service network, this high-performance slew drive meets the growing demands of modern industries. Whether you’re rotating tons of steel or realigning a solar farm—trust LDB as your supplier and manufacturer for world-class slewing drive solutions.
https://www.ldb-bearing.com/wp-content/uploads/2025/07/5014.jpg600900ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-22 16:31:512025-07-22 16:31:53HSE Series Slew Drives: High-Speed, Heavy-Load Solutions for Modern Engineering
The HSE-2 Series Slew Drive is a dual-worm, heavy-duty rotational drive system that combines two worm shafts and a slewing bearing into a high-stability, enclosed structure. An evolution of the HSE series, the HSE-2 is engineered for applications that demand elevated torque capacity, greater mechanical efficiency, and superior self-locking performance—especially under extreme axial and tilting moment loads.
By integrating two worm gears positioned at 90° to one another or in parallel configuration, the HSE-2 offers higher transmission ratios and better load balancing, reducing gear stress and increasing drive longevity.
Key Features and Engineering Advantages
Dual-Worm Gear Mechanism Two worm gears work in tandem to distribute torque more evenly, reduce backlash, and improve load-carrying performance.
Enhanced Self-Locking Capability Ideal for aerial lifts, lifting platforms, and equipment on inclined planes where back-driving must be prevented for safety.
Heavy-Load and Shock-Resistant Housing The reinforced, enclosed housing is designed for IP66–IP67 protection, supporting extreme weather, vibration, and chemical exposure.
Precision Rotation with Dual-Motor Option Dual input shafts allow for synchronized dual-motor control or redundancy in mission-critical applications.
Extended Life in Harsh Conditions Advanced sealing, synthetic lubrication, and wear-resistant materials ensure durability in demanding work environments.
Application Scenarios
Aerial Working Platforms and Firefighting Cranes: Secure load retention with dual braking and redundancy.
Defense and Surveillance Systems: Stability under vibration and multi-angle positioning for antennas and weapons.
Offshore Lifting Equipment: Dual-locking against wave movement and strong winds.
High-Capacity Solar Trackers: Reliable actuation for large heliostats or dual-axis fields.
Mining and Earthmoving Machinery: Built for intense vibration and high-shock torque transfer.
LDB’s HSE-2 Slew Drive Portfolio
LDB offers the HSE-2 series in sizes ranging from 7″ to 25″, engineered for enhanced radial and axial torque. Units support both left-right and up-down dual drive inputs.
Technical Specifications:
Torque Output: 1,500 Nm to 75,000 Nm
Gear Ratios: 40:1 to 200:1
Sealing Standard: IP66; optional IP67 for marine or desert applications
Housing: High-strength aluminum alloy or powder-coated cast iron
Lubrication: Dual grease channels with optional automated lube kits
Custom configurations available for planetary input motors, brake motors, or encoder feedback systems.
Pricing, Supplier, and Manufacturer Information
LDB is a global manufacturer and reliable supplier of high-performance slew drive systems. The HSE-2 series is engineered in China and exported to more than 50 countries for solar, defense, and industrial markets.
Price Influencing Factors:
Dual vs single motor setup
Required gear ratio and torque range
Motor integration type (hydraulic/electric)
Environmental protection level and mounting pattern
Typical Price Range: USD $1,200 to $7,500 depending on specs and volume.
Engineering consultation and CAD files are available via www.ldb-bearing.com, along with logistics support and global fulfillment.
Why Choose LDB for HSE-2 Drives?
Advanced dual-worm engineering for high-load reliability
In-house gear shaping and induction hardening
Pre-assembled motor integration and plug-and-play capability
Comprehensive quality assurance with dynamic load testing
LDB’s HSE-2 units are now in service across North American utility companies, Southeast Asian logistics platforms, and European military research installations.
Conclusion
The HSE-2 Series from LDB offers a unique balance of torque, safety, and redundancy. Built for vertical lifts, offshore towers, and solar farms, this dual-worm solution empowers engineers with motion control they can trust. For precision under pressure, choose LDB as your dedicated supplier and experienced manufacturer.
HSE-2 Series Slew Drives: Dual-Worm High-Load Precision for Demanding Applications
What is an HSE-2 Series Slew Drive?
The HSE-2 Series Slew Drive is a dual-worm, heavy-duty rotational drive system that combines two worm shafts and a slewing bearing into a high-stability, enclosed structure. An evolution of the HSE series, the HSE-2 is engineered for applications that demand elevated torque capacity, greater mechanical efficiency, and superior self-locking performance—especially under extreme axial and tilting moment loads.
By integrating two worm gears positioned at 90° to one another or in parallel configuration, the HSE-2 offers higher transmission ratios and better load balancing, reducing gear stress and increasing drive longevity.
Key Features and Engineering Advantages
Dual-Worm Gear Mechanism Two worm gears work in tandem to distribute torque more evenly, reduce backlash, and improve load-carrying performance.
Enhanced Self-Locking Capability Ideal for aerial lifts, lifting platforms, and equipment on inclined planes where back-driving must be prevented for safety.
Heavy-Load and Shock-Resistant Housing The reinforced, enclosed housing is designed for IP66–IP67 protection, supporting extreme weather, vibration, and chemical exposure.
Precision Rotation with Dual-Motor Option Dual input shafts allow for synchronized dual-motor control or redundancy in mission-critical applications.
Extended Life in Harsh Conditions Advanced sealing, synthetic lubrication, and wear-resistant materials ensure durability in demanding work environments.
Application Scenarios
Aerial Working Platforms and Firefighting Cranes: Secure load retention with dual braking and redundancy.
Defense and Surveillance Systems: Stability under vibration and multi-angle positioning for antennas and weapons.
Offshore Lifting Equipment: Dual-locking against wave movement and strong winds.
High-Capacity Solar Trackers: Reliable actuation for large heliostats or dual-axis fields.
Mining and Earthmoving Machinery: Built for intense vibration and high-shock torque transfer.
LDB’s HSE-2 Slew Drive Portfolio
LDB offers the HSE-2 series in sizes ranging from 7″ to 25″, engineered for enhanced radial and axial torque. Units support both left-right and up-down dual drive inputs.
Technical Specifications:
Torque Output: 1,500 Nm to 75,000 Nm
Gear Ratios: 40:1 to 200:1
Sealing Standard: IP66; optional IP67 for marine or desert applications
Housing: High-strength aluminum alloy or powder-coated cast iron
Lubrication: Dual grease channels with optional automated lube kits
Custom configurations available for planetary input motors, brake motors, or encoder feedback systems.
Pricing, Supplier, and Manufacturer Information
LDB is a global manufacturer and reliable supplier of high-performance slew drive systems. The HSE-2 series is engineered in China and exported to more than 50 countries for solar, defense, and industrial markets.
Price Influencing Factors:
Dual vs single motor setup
Required gear ratio and torque range
Motor integration type (hydraulic/electric)
Environmental protection level and mounting pattern
Typical Price Range: USD $1,200 to $7,500 depending on specs and volume.
Engineering consultation and CAD files are available via www.ldb-bearing.com, along with logistics support and global fulfillment.
Why Choose LDB for HSE-2 Drives?
Advanced dual-worm engineering for high-load reliability
In-house gear shaping and induction hardening
Pre-assembled motor integration and plug-and-play capability
Comprehensive quality assurance with dynamic load testing
LDB’s HSE-2 units are now in service across North American utility companies, Southeast Asian logistics platforms, and European military research installations.
Conclusion
The HSE-2 Series from LDB offers a unique balance of torque, safety, and redundancy. Built for vertical lifts, offshore towers, and solar farms, this dual-worm solution empowers engineers with motion control they can trust. For precision under pressure, choose LDB as your dedicated supplier and experienced manufacturer.
https://www.ldb-bearing.com/wp-content/uploads/2025/07/5013.jpg600900ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-22 16:24:052025-07-22 16:24:09HSE-2 Series Slew Drives: Dual-Worm High-Load Precision for Demanding Applications
A slew drive is a compact gearbox that combines a slewing bearing with a worm gear or spur gear mechanism. It is used to produce rotational movement while simultaneously supporting axial, radial, and tilting moment loads. Slew drives are commonly used in machinery that requires reliable, low-speed rotation under load—such as solar trackers, cranes, excavators, wind turbines, and automation equipment.
To ensure optimal performance, selecting the right slew drive involves evaluating both load capacity and rotation requirements. Improper selection may lead to premature failure, inefficient movement, or safety issues.
LDB Slew Drive Portfolio Overview
LDB is a global manufacturer and supplier of industrial slew drives with a full product line designed to cover light, medium, and heavy-duty rotation needs.
LDB Series Overview:
Series
Gear Type
Key Applications
SE Series
Worm
Solar tracking, small cranes, hoists
VE Series
Worm
CSP systems, antennae, light lifting
HSE Series
Worm
Heavy-duty dual-axis systems
SDE-PDE Series
Dual-Worm
Precision + heavy-load CSP systems
S Series
Worm
Entry-level solar applications
SG-L / M / H
Spur Gear
Robotics, automation, vehicle-mounted units
Step 1: Determine Load Characteristics
Axial Load (Fₐ)
This is the force acting parallel to the axis of rotation. Example: downward force from solar panels.
Radial Load (Fᵣ)
Force acting perpendicular to the axis—typically from wind or mechanical impact.
Moment Load (M)
This is the torque generated due to off-center loads—critical in cranes and lifting arms.
Use the combined load formula:
M = F * d (Where F is load and d is the distance from the rotation center)
Step 2: Evaluate Rotational Requirements
Rotation Range
Do you need 90°, 180°, 360° or continuous rotation?
For tracking systems: 90°–120°
For robotics or lifting: Up to 360° or continuous (with slip rings)
Rotation Speed
Slew drives are typically low-speed (<10 rpm), but you must align gear ratio with the required angular velocity.
Precision
Standard worm drives offer medium backlash
Dual-worm or spur gear drives offer finer control and lower backlash
Step 3: Choose Between Worm and Spur Gear Systems
Requirement
Recommended Gear Type
Self-locking (no back-driving)
Worm Gear
High precision & speed
Spur Gear
Cost-effective solar tracking
Worm Gear
Responsive automation
Spur Gear
Example Matchups:
HSE Series = CSP solar trackers requiring dual-axis and high torque
SG-M Series = Precision robotics with multiple rotation cycles per minute
Step 4: Consider Mounting and Space Constraints
Choose between horizontal and vertical installation orientation
Assess envelope size—LDB offers models from 200mm to 1200mm in diameter
Flange mounting or face-mounting configurations available
Step 5: Verify Environmental Protection and Sealing
Outdoor systems (e.g., solar, cranes) need IP65+ enclosures
For corrosive environments, opt for stainless steel or coated housing
LDB offers marine-grade sealing and UV-resistant paint
LDB Slew Drive Models with Load & Torque Guide
Model Series
Max Output Torque (Nm)
Output Speed (rpm)
Self-Locking
Gear Type
SE-9
1,200
1.5
Yes
Worm
VE-14
4,500
0.8
Yes
Worm
HSE-2-21
15,000
0.4
Yes
Dual-Worm
SG-H
8,000
3.0
No
Spur
Contact LDB for CAD files and performance curves.
Slew Drive Pricing Reference
Type
Torque Class
Price Range (USD)
SE Series
Light duty
$250 – $850
HSE Series
Heavy duty
$1200 – $3000+
SG Spur Gear
Precision class
$800 – $1800
LDB offers volume-based pricing, OEM customization, and short lead times.
Why Choose LDB as Your Manufacturer and Supplier?
20+ years of engineering excellence
Fully CNC-machined worm and gear sets
ISO9001 and CE certified production
Global delivery and multilingual support
Custom motor interface and braking solutions available
Whether you are building solar fields, automation lines, or lifting equipment, LDB provides not only the product but the engineering insight for lasting performance.
Conclusion
Choosing the right slew drive is not just about torque—it’s about ensuring the perfect balance of load, motion, precision, and protection. With LDB’s wide selection and expert support, your equipment will run stronger, smoother, and smarter.
Contact LDB today to get expert guidance and a quote tailored to your load and rotation needs.
https://www.ldb-bearing.com/wp-content/uploads/2021/06/l.png00ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-22 16:08:152025-07-22 16:08:18How to Match a Slew Drive to Your Load and Rotation Needs: A Step-by-Step Selection Guide
What Are Slewing Bearings and Why Is Maintenance Critical?
Slewing bearings are large, precision-engineered components used to support axial, radial, and overturning moment loads in rotating structures. They are commonly found in cranes, excavators, wind turbines, solar trackers, and offshore platforms. In harsh environments—such as extreme temperatures, marine conditions, dusty mines, and desert regions—proper maintenance is not optional; it’s essential.
Without routine maintenance, slewing bearings can suffer from corrosion, grease degradation, raceway wear, and premature failure. In mission-critical systems, such failures may result in expensive downtime, safety hazards, or even structural damage.
Common Environmental Challenges for Slewing Bearings
Environment
Threats
Marine
Saltwater corrosion, humidity, biofouling
Desert
Fine dust intrusion, temperature swings
Arctic
Low temperatures, ice buildup
Mining & Cement
Abrasive dust, heavy shock loads
Offshore Wind
High humidity, salt-laden air, turbine stress
Best Practices for Slewing Bearing Maintenance
Regular Lubrication
Use the correct grease: EP2, lithium complex, or marine-grade grease for offshore.
Lubricate every 100–200 hours of operation, or every month for idle equipment.
Apply grease at each lube point until old grease is pushed out—this flushes contaminants.
LDB Tip: Use a grease gun with pressure gauge to ensure proper penetration. LDB supplies matched grease kits for all slewing models.
Sealing System Inspection
Check for cracked, brittle, or missing seals.
In marine or desert environments, labyrinth or multi-lip seals are recommended.
Replace damaged seals immediately to prevent dust, water, or salt ingress.
LDB offers seal upgrade kits for all standard slewing rings.
Bolt Tightening and Preload Checking
Perform bolt torque checks every 500 operating hours.
Use a calibrated torque wrench; overtightening can deform the bearing ring.
Replace any corroded or elongated bolts with high-grade (10.9 or 12.9) replacements.
LDB Maintenance Kit includes torque specs for each model.
Raceway and Gear Tooth Monitoring
Use an endoscope or grease inspection to detect wear debris in raceways.
Check backlash and gear engagement every 6–12 months.
Re-lap or replace severely worn gears.
LDB bearings are manufactured with hardened raceways (HRC 55–62) and self-cleaning gear profiles for extended service life.
Corrosion Prevention
Apply anti-corrosion coatings (zinc or epoxy) to exposed areas.
Store bearings in dry, climate-controlled conditions if unused.
Use protective covers during shipment and long-term storage.
All spare parts can be ordered directly from LDB, your trusted manufacturer and supplier.
Signs Your Slewing Bearing Needs Service or Replacement
Symptom
Possible Cause
Audible grinding
Lack of lubrication
Uneven rotation or binding
Gear misalignment or damage
Excessive backlash
Worn teeth or lost preload
Grease leakage
Damaged seal
Rust or pitting
Corrosion from water ingress
If detected early, many issues can be resolved with on-site repair, saving costs and extending service life.
Recommended Maintenance Schedule
Task
Frequency
Visual Inspection
Weekly
Lubrication
Monthly or 100–200h
Bolt Torque Check
Quarterly
Gear/Backlash Measurement
Semi-annually
Seal Inspection
Annually
LDB provides a downloadable Maintenance Log Sheet and PDF checklist tailored to your specific bearing model.
Why LDB Bearings Last Longer
Hardened raceways with deep quenching
360° sealing options for extreme conditions
High-precision machining (≤0.01mm runout)
Tested under vibration and salt spray simulations
Customized gear treatments for heavy-duty wear resistance
As a seasoned manufacturer and global supplier,LDB delivers reliability, from steel selection to surface treatment.
Conclusion
Slewing bearings are not “fit and forget” components—especially in harsh environments. By adopting a proactive maintenance routine and sourcing spare parts from trusted suppliers like LDB, you extend bearing life, improve system safety, and reduce lifecycle costs.
�� Reach out to LDB for maintenance kits, custom protection options, or service training tailored to your application.
https://www.ldb-bearing.com/wp-content/uploads/2025/07/509.jpg600900ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-22 15:59:442025-07-22 15:59:48How to Maintain and Extend the Life of Slewing Bearings in Harsh Environments
A slewing bearing, also known as a slewing ring or turntable bearing, is a specialized bearing that allows rotational movement between two components, typically supporting axial, radial, and moment loads simultaneously. These bearings are essential in heavy-duty machinery where large-scale, slow-speed rotational motion is required—such as in excavators, cranes, wind turbines, and offshore platforms.
Slewing bearings are designed to handle complex mechanical demands while operating reliably under harsh environmental conditions. They are available in various configurations depending on the load, motion requirements, and application.
Key Types of Slewing Bearings and Their Applications
Understanding the differences between slewing bearing types is crucial in selecting the right model. The most common options include:
Four Point Contact Ball Slewing Bearing
Structure: Single row, four-point contact ball design
Benefits: High precision and rigidity with minimal clearance
Flanged Slewing Bearing
Structure: Built-in flange on inner or outer ring
Applications: Compact equipment, robotics, solar trackers
Benefits: Easy installation and alignment, space-saving
Factors to Consider When Selecting a Slewing Bearing
Choosing the right slewing bearing depends on several performance and application parameters:
Load Characteristics
Determine the magnitude and direction of axial, radial, and moment loads.
Three-row roller bearings are best for extreme loads; four-point contact bearings suit moderate applications.
Rotational Speed and Precision
High-precision systems like robotics may require cross roller bearings with minimal backlash.
For slow and intermittent rotation, double-row or four-point contact bearings suffice.
Installation Space
Flanged bearings are ideal for tight spaces due to their integrated mounting features.
Select compact designs for mobile machinery or space-limited environments.
Environmental Conditions
Marine, desert, or arctic conditions require corrosion-resistant materials, seals, and special greases.
LDB offers anti-rust coatings and special sealing options for harsh environments.
Mounting and Maintenance
Evaluate ease of installation, lubrication accessibility, and service intervals.
LDB provides detailed mounting instructions and optional maintenance-free solutions.
LDB Slewing Bearing Solutions
As a global manufacturer and supplier, LDB offers a comprehensive line of slewing bearings engineered for industrial, construction, and energy applications. All products are manufactured under ISO 9001 standards and can be customized according to project requirements.
Popular Models:
Four Point Contact Ball Slewing Bearing (LDB-FQ Series)
Double Row Ball Slewing Bearing (LDB-DB Series)
Three-Row Roller Slewing Bearing (LDB-TR Series)
Cross Roller Slewing Bearing (LDB-CR Series)
Flanged Slewing Bearing (LDB-FL Series)
Price Considerations
Slewing bearing prices vary depending on size, material, and load capacity. Below is a general guide:
Bearing Type
Typical Price Range (USD)
Four Point Contact Ball
$150 – $600
Double Row Ball
$400 – $1000
Three-Row Roller
$900 – $3000+
Cross Roller
$300 – $1200
Flanged Slewing Bearing
$180 – $800
LDB provides factory-direct pricing, volume discounts, and tailored quotes for OEM and system integrators.
Finding the Right Manufacturer and Supplier
Choosing a reliable slewing bearing supplier is essential for ensuring performance, safety, and longevity. LDB stands out by offering:
As a trusted manufacturer, LDB has successfully served customers in over 50 countries and supports industries ranging from construction to clean energy.
Why Choose LDB?
20+ Years of Experience in slewing technology
Advanced Production Lines and CNC machining centers
Testing Facilities for load, vibration, and fatigue simulation
Comprehensive Product Catalog with over 1000 models
After-Sales Support including technical training and online diagnostics
Conclusion
Selecting the right slewing bearing is about more than size—it’s about load, precision, environment, and reliability. By understanding the key bearing types and application needs, you can optimize performance and extend machine life. With LDB’s technical support, manufacturing excellence, and global service, you can confidently select the ideal slewing bearing solution.
Ready to choose your bearing? Contact LDB today for a tailored recommendation and competitive pricing.
https://www.ldb-bearing.com/wp-content/uploads/2025/04/微信图片_20250416172000.jpg554827ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-22 15:50:502025-07-22 15:51:00How to Choose the Right Slewing Bearing for Heavy-Duty Equipment
A slewing bearing is a precision-engineered mechanical component that facilitates rotational movement between two structures. It supports axial, radial, and moment loads, and is commonly used in construction equipment such as cranes, excavators, concrete pumps, and aerial work platforms. These large-diameter bearings are critical for heavy-duty turning applications, enabling machines to rotate smoothly while managing intense loads and environmental stress.
Choosing the right slewing bearing is not just a matter of size—it requires a thorough understanding of application needs, load dynamics, environmental conditions, and product lifespan. In this article, we’ll walk you through a complete guide to selecting the best slewing bearing for construction machinery.
Key Factors When Selecting Slewing Bearings
Load Type and Magnitude
Understand whether your machine is exposed to:
Axial loads (vertical weight)
Radial loads (horizontal stress)
Overturning moment (torque from off-center loads)
For instance:
Excavators require strong moment load resistance
Tower cranes need high axial load-bearing capacity
Drilling rigs must handle both high torque and axial thrust
Use accurate force analysis or simulation data (like FEA) to determine expected load ranges.
Rotation Speed and Duty Cycle
Aerial platforms with slow, infrequent rotation require different bearings than high-speed drilling rigs or tunnel boring machines. Choose:
Ball slewing bearings for low-speed, low-friction applications
Roller slewing bearings for high-load or rotational inertia
Installation Space and Mounting Type
Assess diameter, bolt hole placement, and flange structure:
Internal gear bearings save external space
External gear allows better torque transmission
Non-gear options exist for systems using external drives
Recommended Slewing Bearing Types for Construction Equipment
Four Point Contact Ball Slewing Bearing
Excellent for cranes and work platforms
Handles combined loads efficiently
Compact and cost-effective
Double Row Ball Slewing Bearing
Supports higher axial and radial loads
Used in heavy-duty crawler cranes and drilling machines
Higher stability due to dual-row configuration
Cross Roller Slewing Bearing
High stiffness and precision
Ideal for tight installation spaces
Preferred in high-torque applications like foundation machines
Three-Row Roller Slewing Bearing
Superior load handling in all directions
Large size, heavy-duty
Suitable for bucket wheel excavators and heavy mining cranes
Environmental Considerations
Construction equipment faces harsh field conditions:
Dust and sand (grit contamination risk)
Mud and water (requires IP-rated sealing)
Temperature extremes (from -30°C to +70°C)
LDB slewing bearings are available with:
Triple lip seals
Grease ports for regular lubrication
Chrome-plated raceways for corrosion resistance
Customization and Mounting Options
Some machines require non-standard mounting holes or flange connections. LDB offers:
Custom bolt hole patterns
Split bearings for large-diameter applications
Optimized raceway geometry
Reinforced gear tooth hardening for longer service life
Typical Price Range and Procurement Tips
The price of slewing bearings for construction depends on:
Outer diameter and gear type (internal/external/no gear)
Load class and material grade
Sealing systems and certification (CE, ISO, etc.)
Typical Price Range: USD $400 – $6,000 per unit Custom-engineered options may cost more depending on complexity and volumes.
To find a reliable manufacturer or supplier, consult technical teams and request:
Why LDB Is a Trusted Partner in the Construction Industry
LDB is a globally recognized manufacturer and supplier of slewing bearings for heavy-duty construction applications. With:
20+ years of experience
Advanced CNC production lines
Custom machining for OEM partners
Robust inventory and fast shipping options
LDB supports clients from design to delivery. Our products are used in:
Mobile and tower cranes
Tracked excavators
Earth drills and piling rigs
Material handling booms
Final Advice: Ask the Right Questions
Before placing an order, ask:
What’s the actual working load and peak load?
What’s the expected rotational speed and duty cycle?
Is environmental protection a priority?
Are maintenance intervals important?
Choosing the wrong bearing can lead to frequent breakdowns or costly repairs. LDB ensures that your slewing bearing delivers reliable, long-term performance no matter how tough the construction site.
https://www.ldb-bearing.com/wp-content/uploads/2025/04/微信图片_202503312320571.jpg600900ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-22 15:39:042025-07-22 15:39:13How to Choose the Right Slewing Bearing for Construction Equipment Applications
A flanged slewing bearing is a specialized type of slewing ring that integrates a flange—usually on either the inner or outer ring—into its design. The flange serves as a built-in mounting surface, allowing for simplified installation without additional mounting plates or housing structures. These bearings retain the core function of supporting axial, radial, and moment loads while offering improved alignment and space-saving benefits.
Flanged slewing bearings are especially popular in applications requiring compact structures, lightweight systems, and easy mounting. From robotics to aerial platforms, these precision components offer mechanical versatility and operational convenience.
Structural Advantages of Flanged Slewing Bearings
Flanged slewing bearings can be manufactured in multiple configurations:
Flange on Outer Ring: Easier to mount to static structures
Flange on Inner Ring: Preferred for rotating components
Dual-Flanged Design: Offers higher rigidity and symmetrical support
These bearings can be:
Gearless
Internally geared
Externally geared
Why Choose a Flanged Slewing Bearing?
Flanged slewing bearings are ideal when you need:
Compact Design
The integrated flange reduces the need for additional mounting components, saving space and weight.
Simplified Installation
No welding or complex housing required—just bolt-on mounting to existing structures.
High Positional Accuracy
Improved alignment and rigidity make them suitable for indexing or positioning tables.
Cost-Efficiency
Less fabrication required for housings or base structures translates into reduced system costs.
LDB Flanged Slewing Bearing Solutions
As a global manufacturer and supplier, LDB offers a wide range of high-quality flanged slewing bearings under its LDB-FL Series, designed to fit various industrial, automation, and energy applications.
Ensure bolt torque follows manufacturer specs to avoid deformation
Clean flange surface before assembly for best alignment
Use alignment pins in high-precision applications
Recheck gear mesh and preload after initial installation
Flanged Bearing vs Standard Slewing Bearing
Feature
Flanged Bearing
Standard Slewing Bearing
Installation
Bolt-on, direct mounting
Requires external mounting ring or plate
Weight
Lighter overall
Heavier, depending on housing
Assembly Time
Faster
Requires more setup
Common Applications
Compact/lightweight design
Heavy machinery, cranes
Typical Price Range and Specifications
The price of flanged slewing bearings depends on size, flange location, and load rating. LDB offers competitive factory-direct pricing with customization support.
Size (Outer Diameter)
Price Range (USD)
Gear Option
200–600 mm
$180 – $600
Gearless or internal
600–1000 mm
$600 – $1200
External gear
1000–1600 mm
$1200 – $2500+
Custom gear profile
Supplier Note: LDB supports OEM orders, bulk purchasing discounts, and just-in-time shipping for industrial assembly lines.
Why Choose LDB as Your Manufacturer and Supplier?
Precision Manufacturing: Advanced CNC machining ensures concentricity and raceway accuracy
Material Quality: All raceways hardened to HRC 55–62
Flexible Engineering: Tailored flange size, gear ratio, and hole placement
Global Delivery: Fast shipping from China to Europe, North America, and Southeast Asia
Support Services: Drawing consultation, installation guidance, technical training
As both manufacturer and supplier, LDB delivers high-value flanged slewing bearings with reliability and responsiveness.
Conclusion
If your project requires compactness, fast installation, and precision rotation, flanged slewing bearings are the right fit. With LDB’s engineering support and high-performance product line, integrating these bearings into your machine architecture becomes simple and efficient.
Ready to get started? Contact LDB today to explore our flanged bearing catalog or request a customized quote.
https://www.ldb-bearing.com/wp-content/uploads/2025/07/5012.jpg600900ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-22 15:27:022025-07-22 15:27:10Flanged Slewing Bearings: When and Why to Use Them in Compact Rotating Applications
A flanged slewing bearing is a variant of traditional slewing rings that features a flange structure on either the inner or outer ring. This design enables more convenient installation by eliminating the need for a separate mounting plate or housing support.
Compact, lightweight, and easy to align, flanged slewing bearings are ideal for applications with space constraints or strict mounting precision requirements. They are commonly used in packaging equipment, robotic arms, small cranes, rotating displays, and automated guided vehicles (AGVs).
Key Advantages of Flanged Slewing Bearings
Simplified Installation
Flanged designs allow for direct bolt-on mounting to a surface or housing. This reduces the need for support rings, minimizes alignment error, and shortens assembly time.
Reduced Structural Footprint
With fewer components and a unified load-bearing surface, flanged slewing bearings contribute to overall space savings. This is critical in compact systems like AGVs, medical imaging tables, and miniaturized automation lines.
Integrated Load Handling
Despite their slim form, flanged slewing bearings support:
Axial loads (vertical pressure)
Radial loads (horizontal forces)
Tilting moments (overturning torque)
Depending on raceway and ball arrangement, they can deliver precise, high-stiffness rotation under demanding conditions.
Cost-Efficient Engineering
Reduced components mean lower material and labor costs. Maintenance is simpler and access is easier, making flanged designs more budget-friendly over the long term.
Application Scenarios for Flanged Slewing Bearings
LDB, a leading global manufacturer and trusted supplier, offers a wide portfolio of flanged slewing bearings with precision-grade performance. Our range includes:
External Flange Bearings: Flange on outer ring for interior mount
Internal Flange Bearings: Flange on inner ring for external mount
Gearless or Geared Options: External, internal, or non-geared as needed
Custom Drilling Patterns: To fit OEM platforms perfectly
Product Highlights:
Outer diameters from 200 mm to 1500 mm
Standard and custom gear modules
Slim profile with deep groove or four-point contact ball structure
Hardness-tested gear teeth and raceways
Optional rust-proof coatings and dust seals
Selecting the Right Flanged Slewing Bearing
Consider These Parameters:
Load type: static or dynamic
Rotation speed and duty cycle
Mounting surface flatness
Gear interface (motor, servo, or direct drive)
Environmental exposure: moisture, dust, chemicals
LDB engineers provide 1-on-1 support to help customers select models based on technical drawings, FEA simulations, or prototype testing.
Typical Price Range & Procurement Insights
The price of flanged slewing bearings is affected by:
Flange placement and drilling complexity
Diameter and thickness of raceways
Gear requirements
Surface treatment (e.g., phosphate, chromate)
Typical Price Range: USD $150 – $2,000 per unit (Custom flanged types may exceed depending on volume and spec.)
LDB’s global supplier network ensures fast delivery and localized support for high-volume and prototype orders alike. Visit www.ldb-bearing.com to learn more.
Why LDB Is the Preferred Flanged Slewing Bearing Partner
ISO-certified manufacturing with strict quality controls
Fast lead times for standard SKUs
CAD-ready models for OEM design integration
In-house customization from design to delivery
Full-service support: engineering, logistics, and after-sales
We supply top-tier flanged slewing bearings to clients across automation, aerospace, defense, healthcare, and logistics.
Final Thoughts
Flanged slewing bearings strike a perfect balance between space efficiency and structural strength. Their integrated mounting capability and streamlined profile help modern engineers build more compact, precise, and cost-effective systems.
As industries demand more from less, LDB delivers. Our flanged slewing bearings offer the performance and practicality needed to power modern innovation.
Looking for a custom solution or need help selecting a part? Contact LDB at www.ldb-bearing.com for personalized support.
https://www.ldb-bearing.com/wp-content/uploads/2025/04/微信图片_20250403141631.jpg600900ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-21 17:33:502025-07-21 17:33:53Flanged Slewing Bearings: The Space-Saving Solution for Modern Machinery Designs
A Flanged Slewing Bearing is a specialized type of slewing ring designed with an integrated flange along either the inner or outer ring. This flanged design simplifies mounting, reduces weight, and enables integration into systems with tight spatial constraints. Unlike traditional slewing bearings that often require external mounting plates or supports, flanged bearings can be directly bolted to adjoining structures, improving installation efficiency.
Flanged slewing bearings are widely used in applications such as robotics, automation systems, lifting platforms, and small construction equipment—especially where compact design, lightweight assembly, and rapid installation are critical.
Structural Benefits
Integrated Flange Design The flanged profile eliminates the need for separate mounting flanges or adapter rings, reducing system complexity.
Space and Weight Efficiency Ideal for applications with compact mechanical envelopes. By reducing material bulk, flanged bearings help engineers save both space and weight.
Easy Mounting The flange provides a straightforward, bolt-on solution that simplifies installation, maintenance, and replacement operations.
Reliable Load Handling Despite their compact size, flanged bearings still maintain the ability to handle combined axial, radial, and moment loads.
Gear and Non-Gear Options Available with internal gears, external gears, or no gear, depending on the torque transmission needs of the system.
Common Applications
Robotic Arms and Automated Equipment: For fast, accurate rotational motion in confined workspaces.
Turntables and Rotating Displays: Providing quiet and stable movement in commercial kiosks and stage equipment.
Aerial Lifts and Small Cranes: Ensuring safe rotation with minimum structural overhead.
Medical Devices: In diagnostic and surgical equipment where quiet and smooth rotation is vital.
Vehicle-Mounted Systems: Where low weight and vibration resistance are important.
LDB’s Flanged Slewing Bearing Lineup
LDB Bearing offers a full series of flanged slewing bearings tailored for space-sensitive industrial applications. All units are manufactured with premium 42CrMo or 50Mn steel, precision-ground raceways, and GCr15 steel rolling elements.
Technical Highlights:
Outer Diameter Range: 200 mm to 3000 mm
Flange Types: Inner flange, outer flange, dual flange on request
Sealing: Labyrinth and rubber seals for dust and moisture protection
Lubrication: Factory-greased and optionally fitted with lube nipples
Customization: Bolt patterns, gear modules, and preload tuning available
LDB also supports non-standard designs for integration into automated guided vehicles (AGVs), camera systems, or specialized industrial robots.
Pricing, Supplier, and Manufacturer Insights
As a seasoned manufacturer and global supplier, LDB has developed deep expertise in precision bearing design, serving clients across more than 50 countries.
Price Determinants:
Outer diameter and flange thickness
Gear type and tooth accuracy
Application-specific modifications
Surface coatings and mounting hole patterns
Typical Price Range: USD $150 to $2500 per unit depending on size, material, and gear configuration.
LDB provides full technical support from pre-sales consultation to post-installation diagnostics. Customers can request quotes, catalogs, and product models via LDB’s official platform.
Why Choose LDB for Flanged Slewing Bearings?
Fast prototyping and short lead times
CAD-integrated design support
ISO-certified production and strict QA process
Lightweight, durable bearings trusted by OEMs worldwide
Full-service support including application simulation and load analysis
LDB’s flanged slewing bearings have already been successfully implemented in medical automation, compact lifting platforms, and aerospace ground support systems.
Conclusion
Flanged Slewing Bearings strike the perfect balance between strength and simplicity. Their bolt-on versatility and compact form make them the preferred choice for engineers designing space-sensitive rotational systems. With LDB as your supplier and manufacturer, you gain the benefit of precision, scalability, and long-term reliability in a world-class product.
https://www.ldb-bearing.com/wp-content/uploads/2025/07/503.jpg600900ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-21 17:24:372025-07-21 17:24:39Flanged Slewing Bearings: Compact Power for Streamlined Engineering
A Double Row Ball Slewing Bearing is a rotational rolling-element bearing with two rows of steel balls that contact the raceways at varying angles. Compared to single-row designs, double row slewing bearings offer higher axial and radial load capacity and are especially suited for applications requiring robust and stable support under heavy-duty operations.
This bearing type is widely used in construction equipment, port machinery, and wind power systems where high load demands, space efficiency, and long service life are essential.
Structural Advantages
Enhanced Load Distribution Two rows of balls provide more contact points, distributing loads more evenly across the raceways and improving bearing rigidity and rotational accuracy.
Increased Axial and Radial Load Capacity Double row ball designs can handle higher axial and tilting moment loads than four-point contact bearings, making them ideal for large cranes, rotary drills, and offshore platforms.
Vibration and Shock Resistance The enhanced structure improves resistance to external shock and vibrations, ensuring operational safety in harsh environments.
Gear Customization LDB provides these bearings with internal gear, external gear, or gearless designs to fit specific application needs.
Common Applications
Truck Cranes and Tower Cranes: Supporting large, rotating superstructures under dynamic loading conditions.
Harbor and Container Machinery: Handling high-speed, high-frequency operations.
Large Excavators and Rotary Drilling Rigs: Providing stable rotation for precision digging and drilling.
Wind Power Equipment: Used in yaw and pitch systems to support nacelle rotation.
LDB’s Double Row Ball Slewing Bearing Highlights
LDB Bearing manufactures its double row ball slewing bearings with high-grade materials like 42CrMo for rings and GCr15 for balls. All raceways are precision-ground, and surface hardening ensures durability under extreme loads.
Technical Parameters:
Outer Diameter Range: 500 mm to 6000 mm
Ball Row Configurations: Equal diameter or stepped ball rows for customized force management
Sealing: Labyrinth and contact seals for dust and water ingress protection
Lubrication: Factory-lubricated with optional automatic greasing systems
LDB also supports customer-specific bolt hole layouts, custom sealing systems, and integrated gear teeth hardening.
Pricing, Supplier, and Manufacturer Information
LDB Bearing is a leading manufacturer and supplier of high-load slewing rings, including double row ball slewing bearings, with over 20 years of experience. Located in Luoyang, China, LDB supplies to more than 50 countries across construction, energy, and port logistics industries.
Price Factors Include:
Outer diameter and thickness
Gear type and material selection
Surface coating and sealing configuration
Custom options and volume
Typical price ranges from USD 800 to USD 5000 depending on the specification. Clients can request quotations and CAD drawings directly via LDB’s website.
Why Choose LDB?
In-house manufacturing and heat treatment
Fast production cycles and global shipping
ISO 9001-certified QA system
Responsive pre- and post-sales engineering support
Whether you’re integrating slewing bearings into a crane, drill rig, or wind turbine, LDB’s double row ball slewing bearings provide the performance and reliability required for continuous operation.
Conclusion
Double Row Ball Slewing Bearings represent a perfect combination of strength, flexibility, and durability. With LDB’s engineering expertise and proven quality, your machinery can reach new heights of stability and load capacity. Choose LDB for world-class slewing solutions built to last.
