An SE Series Slew Drive is a type of fully enclosed worm-gear-based rotary drive unit, designed to deliver high torque, self-locking function, and compact rotation in a single integrated housing. The “SE” stands for “Standard Enclosed,” and these slew drives are optimized for medium-duty applications requiring reliable performance and weather resistance.
The SE series is most commonly used in single-axis solar tracking systems, truck-mounted cranes, aerial lifts, turntables, and satellite communication platforms—where space, precision, and durability are key.
Key Features of SE Series Slew Drives
Worm Gear Design
SE drives use a hardened steel worm shaft and gear ring to transmit torque. This design provides:
Self-locking capability (holds position without power)
Smooth and stable rotation
High gear reduction ratios (up to 100:1)
Fully Enclosed Housing
Each SE unit comes with an IP65-rated sealed enclosure, which protects the internal components from:
Dust and sand
Rain and humidity
UV exposure and oxidation
This makes the SE series suitable for long-term outdoor installation.
Motor Compatibility
The SE series is compatible with:
Hydraulic motors
AC and DC gear motors
Planetary reducers
Customers can specify input configurations for stepper, servo, or brushed motors, based on torque and speed requirements.
Easy Installation and Maintenance
SE slew drives feature integrated mounting flanges and pre-drilled bolt holes, streamlining installation. Grease ports enable convenient periodic lubrication.
Typical Applications of SE Slew Drives
Application
Role of SE Series Slew Drive
Single-Axis Solar Tracker
East-West panel rotation
Truck-Mounted Crane
Boom swing control
Dish Antenna Systems
Azimuthal alignment and repositioning
Portable Lighting Towers
Rotating floodlight arrays
Industrial Rotating Tables
Indexing and controlled rotation tasks
LDB’s SE Series Product Line
As a leading global manufacturer and supplier, LDB has engineered a full range of SE Series Slew Drives from sizes SE3 to SE25. These are available in:
Horizontal or vertical mounting types
Single or double worm drive designs
Custom motor flange interfaces
Integrated brake or encoder options
Specifications:
Output Torque: 1.2 kNm to 35 kNm
Holding Torque: Up to 50 kNm
Reduction Ratio: 30:1 to 100:1
IP Rating: IP65 standard (upgradable)
Operating Temp: -40°C to +70°C
These units undergo strict quality control, gear meshing testing, and sealing verification prior to delivery.
Pricing and Ordering Information
Price Factors:
SE size (gear diameter)
Torque capacity
Motor and encoder configuration
Custom coatings or anti-corrosion treatments
Typical Price Range: USD $250 – $2,800 per unit LDB provides volume pricing, solar EPC discounts, and rapid lead times across Asia, Europe, and the Americas.
Thousands of successful deployments in PV tracking projects
Localized support in over 40 countries
Design-matching services for OEM systems
Long service life with minimal maintenance
Whether you’re building an agricultural solar tracker or retrofitting a communication tower, LDB’s SE drives deliver the balance of strength, size, and cost-efficiency.
Installation Tips for Best Results
Mount the drive on a flat surface to avoid misalignment
Match input shaft to motor specs (torque, rpm, mounting pattern)
Use Loctite or locking washers on flange bolts
Monitor internal grease pressure if used in high-temperature regions
Conclusion
The SE Series Slew Drive offers a durable, cost-effective rotation solution for small to medium-load applications. Its fully sealed, self-locking design makes it ideal for harsh outdoor environments, while its modular compatibility allows flexibility in motor selection.
LDB’s SE line stands as a proven choice among manufacturers, suppliers, and system integrators worldwide.
Get started with your project by reaching out to LDB’s engineering team at www.ldb-bearing.com for sizing, drawings, and custom options.
https://www.ldb-bearing.com/wp-content/uploads/2025/07/5021.jpg600900ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-23 16:18:002025-07-23 16:18:04SE Series Slew Drives: The Compact Powerhouse for Solar Tracking and Rotational Systems
An SE Series Slew Drive is a compact and sealed rotational actuator that integrates a slewing bearing with a worm gear mechanism, designed to deliver torque, rotational stability, and self-locking capability. SE series drives are ideal for applications where slow, controlled rotation is required, such as in solar panel tracking, lifting systems, or satellite positioning.
The hallmark of the SE series is its enclosed, weatherproof construction and bi-directional motion capability. It is one of the most commonly used types of slew drives in solar energy systems worldwide.
Core Technical Features
Self-Locking Worm Gear Mechanism SE slew drives use a worm-and-wheel setup where the worm gear provides inherent self-locking properties, which helps panels or equipment hold position against external forces like wind.
Enclosed Housing (IP66 and Above) These units are designed to operate in harsh outdoor conditions, with excellent protection from dust, rain, and sand. Higher protection levels are available for offshore or desert deployments.
Bi-Directional Mounting The SE series supports horizontal and vertical mounting, offering installation flexibility on poles, flat platforms, or mobile systems.
Compatibility with Motor Systems SE slew drives can be powered by hydraulic or electric motors and offer precise control over speed and torque through motor configuration.
Typical Applications of SE Slew Drives
Industry
Application Area
Solar Energy
Single & dual-axis solar trackers
Transportation
Truck-mounted cranes, trailer ramps
Robotics
Arm rotation, lifting mechanisms
Wind Energy
Yaw systems, blade pitch control
Industrial Automation
Rotating inspection tables, platforms
The SE series stands out in solar PV and CSP systems because of its low maintenance, stability, and long-term durability in outdoor climates.
LDB’s SE Series Product Portfolio
As a seasoned manufacturer and supplier, LDB offers a complete line of SE Series Slew Drives with model numbers ranging from SE3 to SE25.
Technical Specs Across LDB Models:
Output torque: 1.2 kNm to 80 kNm
Gear ratios: 30:1 to 150:1 (customizable)
Nominal output speed: 0.2–2 rpm
Motor interface: DC motor, AC motor, or hydraulic
Operating temperature: –30°C to +70°C
Optional anti-corrosion coatings for marine or desert use
Price Guide and Cost Factors
The price of an SE Series slew drive depends on the torque rating, motor integration, and environmental protections. LDB offers flexible pricing depending on quantity and configuration.
Model Range
Typical Price (USD)
SE3 – SE5
$300 – $700
SE7 – SE14
$800 – $1,500
SE17 – SE25
$1,800 – $3,200+
Bulk project pricing and OEM discounts are available. LDB provides detailed price breakdowns based on unit specs and application types.
Control precision (speed, backlash, repeatability)
Pro Tip: For solar trackers, select a model with 2x the maximum wind load torque to prevent slippage or misalignment.
Supplier & Manufacturer Reliability
Choosing a reliable manufacturer and supplier is as important as the product itself. LDB is recognized globally for:
20+ years of slewing system expertise
International certifications (ISO 9001, CE)
High-precision CNC manufacturing lines
Dedicated engineering support and CAD drawings
Local agent support in 30+ countries
Whether it’s a small-scale pilot system or a 10 MW utility project, LDB ensures long-term supply, documentation, and after-sales service.
Why Choose LDB for SE Slew Drives
Proven Track Record: Over 5000 SE units installed in solar farms across the U.S., Europe, and Asia.
Customization Support: Need a special gear ratio, flange, or anti-rust coating? LDB builds to spec.
OEM Partnerships: Trusted by solar tracker manufacturers, crane integrators, and automation system developers.
Real-Time Technical Service: Remote diagnostics, installation guidance, and cloud monitoring support available.
Conclusion
SE Series Slew Drives are essential for precision rotation in harsh environments. Their enclosed design, high gear ratios, and durability make them the ideal choice for solar, lifting, and automation systems. LDB’s engineering strength, customization capability, and global service network make it the ideal partner when performance matters.
If you’re looking for a slew drive supplier that offers competitive prices, custom engineering, and global fulfillment—LDB is the name to trust.
SE Series Slew Drives – Reliable Precision for Solar Tracking and Beyond
What Is an SE Series Slew Drive?
An SE Series Slew Drive is a compact and sealed rotational actuator that integrates a slewing bearing with a worm gear mechanism, designed to deliver torque, rotational stability, and self-locking capability. SE series drives are ideal for applications where slow, controlled rotation is required, such as in solar panel tracking, lifting systems, or satellite positioning.
The hallmark of the SE series is its enclosed, weatherproof construction and bi-directional motion capability. It is one of the most commonly used types of slew drives in solar energy systems worldwide.
Core Technical Features
Self-Locking Worm Gear Mechanism SE slew drives use a worm-and-wheel setup where the worm gear provides inherent self-locking properties, which helps panels or equipment hold position against external forces like wind.
Enclosed Housing (IP66 and Above) These units are designed to operate in harsh outdoor conditions, with excellent protection from dust, rain, and sand. Higher protection levels are available for offshore or desert deployments.
Bi-Directional Mounting The SE series supports horizontal and vertical mounting, offering installation flexibility on poles, flat platforms, or mobile systems.
Compatibility with Motor Systems SE slew drives can be powered by hydraulic or electric motors and offer precise control over speed and torque through motor configuration.
Typical Applications of SE Slew Drives
Industry
Application Area
Solar Energy
Single & dual-axis solar trackers
Transportation
Truck-mounted cranes, trailer ramps
Robotics
Arm rotation, lifting mechanisms
Wind Energy
Yaw systems, blade pitch control
Industrial Automation
Rotating inspection tables, platforms
The SE series stands out in solar PV and CSP systems because of its low maintenance, stability, and long-term durability in outdoor climates.
LDB’s SE Series Product Portfolio
As a seasoned manufacturer and supplier, LDB offers a complete line of SE Series Slew Drives with model numbers ranging from SE3 to SE25.
Technical Specs Across LDB Models:
Output torque: 1.2 kNm to 80 kNm
Gear ratios: 30:1 to 150:1 (customizable)
Nominal output speed: 0.2–2 rpm
Motor interface: DC motor, AC motor, or hydraulic
Operating temperature: –30°C to +70°C
Optional anti-corrosion coatings for marine or desert use
Price Guide and Cost Factors
The price of an SE Series slew drive depends on the torque rating, motor integration, and environmental protections. LDB offers flexible pricing depending on quantity and configuration.
Model Range
Typical Price (USD)
SE3 – SE5
$300 – $700
SE7 – SE14
$800 – $1,500
SE17 – SE25
$1,800 – $3,200+
Bulk project pricing and OEM discounts are available. LDB provides detailed price breakdowns based on unit specs and application types.
Control precision (speed, backlash, repeatability)
Pro Tip: For solar trackers, select a model with 2x the maximum wind load torque to prevent slippage or misalignment.
Supplier & Manufacturer Reliability
Choosing a reliable manufacturer and supplier is as important as the product itself. LDB is recognized globally for:
20+ years of slewing system expertise
International certifications (ISO 9001, CE)
High-precision CNC manufacturing lines
Dedicated engineering support and CAD drawings
Local agent support in 30+ countries
Whether it’s a small-scale pilot system or a 10 MW utility project, LDB ensures long-term supply, documentation, and after-sales service.
Why Choose LDB for SE Slew Drives
Proven Track Record: Over 5000 SE units installed in solar farms across the U.S., Europe, and Asia.
Customization Support: Need a special gear ratio, flange, or anti-rust coating? LDB builds to spec.
OEM Partnerships: Trusted by solar tracker manufacturers, crane integrators, and automation system developers.
Real-Time Technical Service: Remote diagnostics, installation guidance, and cloud monitoring support available.
Conclusion
SE Series Slew Drives are essential for precision rotation in harsh environments. Their enclosed design, high gear ratios, and durability make them the ideal choice for solar, lifting, and automation systems. LDB’s engineering strength, customization capability, and global service network make it the ideal partner when performance matters.
If you’re looking for a slew drive supplier that offers competitive prices, custom engineering, and global fulfillment—LDB is the name to trust.
https://www.ldb-bearing.com/wp-content/uploads/2025/07/5014.jpg600900ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-23 16:08:222025-07-23 16:08:25SE Series Slew Drives – Reliable Precision for Solar Tracking and Beyond
The SE Series Slew Drive is a fully enclosed rotary drive system that integrates a worm gear, slewing bearing, and housing into a compact, self-contained unit. Built for durability and precision, the SE (Standard Enclosed) series delivers smooth, controlled rotational movement in applications requiring tight space utilization, environmental protection, and high torque output.
Unlike traditional open-gear slewing mechanisms, the SE series protects internal components from dust, water, and corrosion—making it ideal for outdoor, mobile, and heavy-duty applications.
Key Features and Advantages
Enclosed Housing for Weatherproof Protection SE series units are IP65-rated, shielding the worm gear and slewing ring from water, dust, and debris. This extends product life in challenging environments.
High Torque in Compact Form Through the worm gear mechanism, SE drives deliver high torque at low rotational speed—critical for safety and precision in lifting and solar tracking systems.
Self-Locking Capability The worm gear design provides natural self-locking ability, preventing back-driving and improving safety in vertical installations.
Multiple Mounting Interfaces Flange and square housing options simplify installation in equipment such as cranes, booms, aerial lifts, and solar trackers.
Motor Compatibility Compatible with hydraulic, DC, or AC motors. LDB also provides integrated drive-and-motor units on request.
Applications of SE Series Slew Drives
Single-Axis and Dual-Axis Solar Trackers: Offering reliability in daily positioning for PV and CSP systems.
Construction Equipment: In aerial work platforms, telescopic handlers, and concrete pumps.
Military and Defense Systems: For precise targeting and positioning in radar, surveillance, and weapon platforms.
Industrial Automation: Enabling precise movement in assembly lines, welding arms, and logistics.
Marine and Offshore Equipment: Corrosion-resistant models support ship deck cranes and offshore manipulators.
LDB’s SE Series Slew Drive Portfolio
LDB designs and manufactures a complete range of SE Series Slew Drives with housing diameters from 3 inches to 25 inches (SE3–SE25). Custom modifications are available to meet specific mechanical or environmental requirements.
Product Specifications:
Output Torque Range: 500 Nm to 60,000 Nm
Gear Ratio: 30:1 to 150:1 (adjustable)
Housing Material: Cast iron or aluminum alloy (marine grade optional)
Bearing Type: Single-row ball slewing bearing with gear integration
Seal Rating: IP65 standard; IP67 optional
Motor Mounts: Standardized for hydraulic, DC, and stepper motors
Pricing, Supplier, and Manufacturer Details
As a leading supplier and manufacturer, LDB offers SE Series Slew Drives at competitive pricing based on application complexity, motor integration, and environmental sealing.
Pricing Influencers:
Drive size and torque rating
Enclosure material and sealing level
Integrated motor type (optional)
Operating environment and corrosion treatment
Typical Price Range: USD $200 to $3,800 per unit.
LDB supports global clients with technical drawings, integration guides, and logistics coordination. Visit www.ldb-bearing.com for direct consultation and quotation.
Why Engineers Trust LDB’s SE Slew Drives
Fully integrated drive solution = fewer moving parts
Field-proven in over 300 solar installations
Customized gear ratios and housing designs
Strong after-sales support with installation assistance
Global delivery with CE/ISO/ROHS compliance
LDB’s SE Series Slew Drives are engineered to perform in harsh conditions while offering the precision and reliability that today’s automated and mobile systems demand.
Conclusion
SE Series Slew Drives represent the perfect synergy of protection, torque, and precision. Whether you’re designing for solar energy, aerial lifts, or automated equipment, LDB provides turnkey solutions as your trusted supplier and precision manufacturer. Compact, durable, and highly configurable—SE drives redefine rotation.
https://www.ldb-bearing.com/wp-content/uploads/2025/07/5015.jpg600900ldbadminhttps://www.ldb-bearing.com/wp-content/uploads/2021/06/l.pngldbadmin2025-07-23 15:57:412025-07-23 15:57:44SE Series Slew Drives: Compact, Enclosed Power for Precision Rotation
