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.





















Three-Row Roller Slewing Bearings for Wheeled Cranes: A Complete Technical Guide
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingWheeled cranes—including truck-mounted cranes, all-terrain cranes, and rough-terrain cranes—are indispensable assets on construction sites, in port logistics, and for emergency rescue operations. These machines must perform heavy lifts, execute large-radius slewing movements, and frequently relocate between job sites. At the heart of every wheeled crane’s rotational system lies thethree-row roller slewing bearing, a component engineered […]
Double Row Ball Slewing Bearings for Construction Equipment
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingConstruction equipment operates under some of the most demanding conditions in the industrial world. Tower cranes lifting multi-ton loads, excavators digging through rock and debris, concrete pump trucks extending booms across construction sites—all rely on a single critical component to enable their primary function: rotation. The double row ball slewing bearing is the engineering solution that makes […]
Four-Point Contact Ball Slewing Bearings in Robotics: A Complete Technical Guide
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingThe robotics industry places extraordinary demands on motion components: compact envelopes, high load capacity, positioning precision measured in arc-seconds, and reliable performance through millions of cycles. Four-point contact ball slewing bearings have emerged as a preferred solution for robotic joints, base rotations, and positioning stages, offering a unique combination of load-handling capability and structural efficiency […]