FEATURED PRODUCTS
Check out featured slewing bearings, slew drives, and spur gear drives in various designs for heavy machinery, such as cranes, excavators, earthmovers, solar trackers,machining and automation industries.
Four Point Contact Ball Slewing Bearing
Four-point contact ball slewing bearing is mainly composed of inner ring, outer ring, single-row steel balls, cage (or spacer), sealing device and other parts.
LDB SE Series Slew Drive
The SE series slewing drive is a type of worm gear driven slewing drive that features a compact design, high torque capacity, and precise rotation control.
SG-I Spur Gear Slewing Drive
SG-I series Spur Gear Slewing Drive is composed of a rotary bearing, gear, bearing seat, adapter flange, support bearing, seals, and other components.
Cross Roller Slew Bearing
Cross-roller slew rings are roller slew bearings with high rotational accuracy that are capable of receiving a load in any direction.
WE series Slewing Drive
WE series Slewing Drive is composed of a slewing bearing, worm, bearing housing, adapter flange, support bearing, sealings, and others.
SG-M Spur Gear Slew Drive
A SG-M spur gear slewing drive is a type of mechanical component that provides high load-carrying capacity and precise movement for various applications.
LDB PRODUCTS
LDB Bearing manufactures standard and customized slewing bearings, slew drives, and spur gear drives in various designs for heavy machinery, such as cranes, excavators, earthmovers, solar trackers,machining and automation industries.
Slewing Bearings
Slewing bearings are designed for large load-bearing capability and can manage a full range of heavy-duty mechanical equipment.
Slew Drives
Slew drives are an update to worm drive mechanisms and are made for applications that need rotational torque and load holding in the same gearbox.
Spur Gear Slew Drive
Spur gear slew drive is also called gear slewing reducer which is generally composed of pinion gears, turntable bearings, shells, motors, or motors.
Cross Roller Slewing Bearings: Solving Rigidity and Runout Challenges in High-Precision Turntables
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingIn high-precision industrial machinery, automation systems, and medical imaging equipment, rotational accuracy is non-negotiable. While standard four-point contact ball slewing bearings excel in general construction and material handling equipment where moderate radial and axial play is acceptable, precision indexing tables, industrial welding positioners, and radar pedestals demand absolute structural rigidity and minimal rotational runout under […]
Downsizing Turntables with Flanged and Double Row Different Diameter Ball Slewing Bearings
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingIn heavy-duty equipment design, engineers frequently default to three-row roller slewing bearings whenever high overturning moments or complex axial-radial load combinations enter the specification sheet. While three-row roller configurations offer maximum load density for massive cranes and wind turbines, specifying them for mid-sized mobile machinery, aerial work platforms, compact excavators, and automated welding positioners often […]
Preventing False Brinelling in Oscillating Slewing Bearings
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingWhen heavy-duty machinery operates under continuous low-angle oscillation—such as wind turbine pitch mechanisms, solar tracking arrays, radar pedestals, and robotic welding turntables—slewing bearings encounter a silent, destructive failure mode: false brinelling and its aggressive companion, fretting corrosion. Unlike standard full-rotation applications that continuously replenish a healthy elastohydrodynamic (EHD) lubrication film across the raceway, oscillating low-angle […]