Slewing Bearings for Solar Trackers: Precision and Durability for Maximum Sunlight Capture
What is a Slewing Bearing in Solar Tracking Systems?
A slewing bearing in solar trackers is a large-diameter rotational bearing that enables the controlled movement of photovoltaic (PV) or concentrated solar power (CSP) panels. Installed at the core of single or dual-axis solar tracking systems, slewing bearings allow solar modules to follow the sun’s path throughout the day—maximizing energy yield by maintaining optimal exposure.
These bearings accommodate axial, radial, and tilting moment loads, making them ideal for supporting the structural motion and stability required in dynamic solar environments.
Key Performance Features for Solar Applications
High Load-Bearing Capacity
Solar trackers, especially dual-axis systems, impose significant loads due to wind pressure and the weight of the panel structures. LDB slewing bearings are engineered to withstand these forces while maintaining smooth rotation.
Maintenance-Free or Low-Grease Options
Advanced sealing systems and corrosion-resistant materials enable long-term performance in outdoor environments, reducing the need for frequent maintenance.
High Positioning Accuracy
Integrated with slew drives, these bearings support precise angular adjustments critical for energy-efficient solar tracking.
Corrosion-Resistant Coatings
LDB offers galvanized or surface-treated bearings to prevent rust in desert, coastal, or humid areas.
Long Service Life
Designed for 20–25 years of continuous outdoor operation, with reliability under extreme temperatures and UV exposure.
Types of Slewing Bearings Used in Solar Trackers
Four Point Contact Ball Bearings: Standard for single-axis trackers due to compact design and good load distribution.
Double Row Ball Slewing Bearings: Used in dual-axis systems for greater stability and load support.
Cross Roller Slewing Bearings: Preferred for applications requiring high rigidity and precise movement.
Flanged Slewing Bearings: Simplify mounting and reduce space in structural designs.
Application Scenarios
Utility-Scale PV Power Plants
Dual-Axis CSP Mirror Tracking Systems
Agricultural and Hybrid Agrivoltaic Installations
Remote Off-Grid Solar Fields
Smart Rooftop Solar Projects
LDB Slewing Bearings for Solar Tracker Solutions
As a global supplier and ISO-certified manufacturer, LDB produces a wide range of slewing bearings specifically designed for solar tracking environments. Our portfolio includes:
Standard diameters from 300 mm to 1,600 mm
Customized bolt hole patterns and mounting options
IP66-sealed designs for outdoor reliability
Gearless or internal/external gear configurations
Pre-lubricated units with service intervals up to 5 years
Price and Procurement Guidance
Key Price Factors:
Bearing diameter and ring thickness
Gear type (internal, external, none)
Sealing and surface treatment
Application-specific load calculations
Typical Price Range: USD $120 to $3,500 depending on size, features, and order quantity.
For pricing and technical support, visit www.ldb-bearing.com to request CAD files, datasheets, and custom quotations.
Why LDB for Solar Slewing Bearings?
Over 20 years of experience in the renewable energy sector
Proven supply record in North America, the Middle East, and Asia-Pacific
Close integration with LDB slew drives for turnkey solutions
Low MOQ and scalable supply for EPCs and tracker OEMs
LDB’s bearings are installed in over 5GW of solar generation systems worldwide, powering the shift to sustainable energy one rotation at a time.
Conclusion
In solar tracking, precision and durability directly impact energy output. LDB’s slewing bearings are engineered to keep your panels aligned with the sun—day after day, year after year. As a trusted manufacturer and experienced supplier, LDB supports the solar industry with components that last, perform, and deliver results.
Slewing Bearings for Solar Trackers: Precision and Durability for Maximum Sunlight Capture
What is a Slewing Bearing in Solar Tracking Systems?
A slewing bearing in solar trackers is a large-diameter rotational bearing that enables the controlled movement of photovoltaic (PV) or concentrated solar power (CSP) panels. Installed at the core of single or dual-axis solar tracking systems, slewing bearings allow solar modules to follow the sun’s path throughout the day—maximizing energy yield by maintaining optimal exposure.
These bearings accommodate axial, radial, and tilting moment loads, making them ideal for supporting the structural motion and stability required in dynamic solar environments.
Key Performance Features for Solar Applications
High Load-Bearing Capacity
Solar trackers, especially dual-axis systems, impose significant loads due to wind pressure and the weight of the panel structures. LDB slewing bearings are engineered to withstand these forces while maintaining smooth rotation.
Maintenance-Free or Low-Grease Options
Advanced sealing systems and corrosion-resistant materials enable long-term performance in outdoor environments, reducing the need for frequent maintenance.
High Positioning Accuracy
Integrated with slew drives, these bearings support precise angular adjustments critical for energy-efficient solar tracking.
Corrosion-Resistant Coatings
LDB offers galvanized or surface-treated bearings to prevent rust in desert, coastal, or humid areas.
Long Service Life
Designed for 20–25 years of continuous outdoor operation, with reliability under extreme temperatures and UV exposure.
Types of Slewing Bearings Used in Solar Trackers
Four Point Contact Ball Bearings: Standard for single-axis trackers due to compact design and good load distribution.
Double Row Ball Slewing Bearings: Used in dual-axis systems for greater stability and load support.
Cross Roller Slewing Bearings: Preferred for applications requiring high rigidity and precise movement.
Flanged Slewing Bearings: Simplify mounting and reduce space in structural designs.
Application Scenarios
Utility-Scale PV Power Plants
Dual-Axis CSP Mirror Tracking Systems
Agricultural and Hybrid Agrivoltaic Installations
Remote Off-Grid Solar Fields
Smart Rooftop Solar Projects
LDB Slewing Bearings for Solar Tracker Solutions
As a global supplier and ISO-certified manufacturer, LDB produces a wide range of slewing bearings specifically designed for solar tracking environments. Our portfolio includes:
Standard diameters from 300 mm to 1,600 mm
Customized bolt hole patterns and mounting options
IP66-sealed designs for outdoor reliability
Gearless or internal/external gear configurations
Pre-lubricated units with service intervals up to 5 years
Price and Procurement Guidance
Key Price Factors:
Bearing diameter and ring thickness
Gear type (internal, external, none)
Sealing and surface treatment
Application-specific load calculations
Typical Price Range: USD $120 to $3,500 depending on size, features, and order quantity.
For pricing and technical support, visit www.ldb-bearing.com to request CAD files, datasheets, and custom quotations.
Why LDB for Solar Slewing Bearings?
Over 20 years of experience in the renewable energy sector
Proven supply record in North America, the Middle East, and Asia-Pacific
Close integration with LDB slew drives for turnkey solutions
Low MOQ and scalable supply for EPCs and tracker OEMs
LDB’s bearings are installed in over 5GW of solar generation systems worldwide, powering the shift to sustainable energy one rotation at a time.
Conclusion
In solar tracking, precision and durability directly impact energy output. LDB’s slewing bearings are engineered to keep your panels aligned with the sun—day after day, year after year. As a trusted manufacturer and experienced supplier, LDB supports the solar industry with components that last, perform, and deliver results.
